Terminator SideStore Log Cabin

Approx. W5.5m x D3m / W18' x D10'

Wall Thicknesses: 45mm

(Sizes shown are approximate & full sizes are shown in the product specification)

January Sale

Terminator SideStore Log Cabin

Approx. W5.5m x D3m / W18' x D10'

Wall Thicknesses: 45mm

(Sizes shown are approximate & full sizes are shown in the product specification)

From £3,299.99 £5,074.99
Save £1,775
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  • Responsibly sourced timber
  • Separate storage room
  • 24mm Double-Glazing, NOT thinner 14mm
  • Sturdy 19mm tongue and groove roof and floor

Terminator SideStore Log Cabin Overview

The Terminator 5.5m x 3m Log Cabin with SideStore, gives you a garden room for all your needs, plus a separate storage space on the side. You can use your log cabin as a home gym, garden office, pub shed, or summerhouse.

 

Meanwhile, the sidestore provides space to safely store your outdoor furniture, bikes, or gardening equipment, where you can easily access them.

Key Features

  • Secure, industry leading, Multi-Point Locking
  • Quicker, DIY install with Pre-Assembled Windows
  • 10 Year guarantee on pressure treated floor bearers
  • Interlocking log walls. Strong and robust
  • Vents supplied for airflow and to minimise moisture
  • Adjustable storm braces included. Protect your cabin
  • Stylish, domestic style window and door handles
  • Slow grown Spruce, not cheap Pine. Built to last!

Our log cabins include many features which you’ll struggle to find anywhere else! From high internal eaves to attractive French doors, and industry-leading locking systems. Our log cabin doors feature a secure 6-point lock, and the windows have multi-point locks with key locking handles.

 

Let’s not forget the pressure treated floor bearers with a 10-year guarantee. Or the thick 19mm roof and floor boards which are included as standard, not an optional extra like some competitors. Did we mention the double glazed 4mm toughened glass yet? We don’t use styrene, Perspex or weak 3mm horticultural glass.

Additional Information

Established in 1994, we are Industry Experts that YOU CAN TRUST!

We are a UK family-run business supporting more than 700 jobs up and down the UK with dedicated distribution centres strategically placed across the country so that we can deliver products to you quickly. We have been selling garden buildings and structures for decades, so you can realise your dreams and create the perfect outdoor space, whether it is for relaxation, a place of work or a destination to fulfil your hobbies or to simply entertain…

…our vast range of products means that you are bound to find the ideal solution for YOU.

family-business

 

Why have so many Chosen to Buy from Dunster House?

Trusted-by-Tens-of-Thousands-of-Customers

Trusted by Tens of Thousands of Customers

Our customers are at the forefront of every decision that we make, and that is why we have been able to sell millions of products to satisfied customers up and down the county. Why not check out our Trustpilot reviews? They speak for themselves!

Buy-Direct-from-The-Manufacture.

Buy Direct from The Manufacture!

Buy directly from Dunster House, and you will benefit from great value prices. Who wants to pay more than you have to? Well, at Dunster House you can cut out the middleman – We design, We make, We deliver!

Exceptional-Value-Superb-Quality

Exceptional Value, Superb Quality

We are known for providing exceptionally high-quality products at affordable prices. Be wary of competitors who offer lower-spec products, cut corners to save on prices and try to upsell you on necessary items such as flooring, roofing material and safety features!

To ensure the very best quality, we only use slow-grown White Spruce Timber, which is harvested in cold climates to ensure solid, dense log rings. This gives the wood superior strength and longevity, and a much more consistent colour than the likes of Pine.

Products-Designed-for-the-DIY-Market

Products Designed for the DIY Market

All of our garden buildings are designed with the DIY market in mind. Why? Because it saves the need to employ a carpenter or builder helping you to save money and costs. Follow our detailed instructions and you will be showing off your achievements to friends and family in no time.

Speak-with-Experts-and-Buy-with-Confidence

Speak with Experts and Buy with Confidence

Our in-house sales team are available during business hours to answer any questions you might have before making a purchase. With expert product knowledge, have your questions answered so that you can buy with confidence. Contact us today

 

A Wide Range of Products to Choose From

Explore our extensive range of products online or download one of our free brochures for more detailed information. Our user-friendly website allows you to easily search and filter through our garden buildings to find exactly what you need. Each product page provides comprehensive descriptions, high-quality images, and customer reviews to help you make informed decisions.

If you prefer a more traditional approach, our free brochures are available for download. These brochures provide in-depth insights and product specifications to help you get the most out of our products. Whether you’re browsing on the go or reviewing options at your leisure, our brochures are designed to be a convenient and informative resource.

The majority of our garden buildings, structures and climbing frames are made from natural materials therefore variations in the materials provided can occur along with natural changes and differences. In some cases too, it may be necessary to treat your product. Be an informed buyer and learn more.

 

Looking for some Inspiration?

product-range

Explore our customer inspiration gallery, a treasure trove of creativity and innovation, showcasing a myriad of garden ideas brought to life by our valued customers. Immerse yourself in a visual journey where elegant outdoor living spaces come together to inspire your own garden projects.

Dive deeper into our customer case studies, where compelling customer stories unfold alongside captivating images. These real-life examples illustrate how our products have been used to achieve stunning results, offering practical inspiration and guidance for your own endeavours.

Whether you’re envisioning a serene sanctuary, a productive workspace, or a stylish entertainment area, our customer inspiration gallery and Case Studies provide a wealth of ideas and solutions to help you realise your garden dreams. Let these stories and images ignite your imagination and empower you to create a garden space that reflects your unique style and aspirations.

It is the small details that matter…

When choosing a cabin, it is important to think about security. In addition to our industry-leading multi-point locking systems, we also ensure that our window and door hinges are concealed.

Unlike some competitors, you cannot simply use a screwdriver to remove a window or door. We ensure that screws are concealed.

Why? Because your security matters!

OURS:

Dunster House Secure Concealed Hinges and Screws

THEIRS:
Competitor Unsecure Hinges and Screws

We provide full-length floorboards NOT Half cut boards commonly supplied by competitors.

Did you know? Unlike some competitors, our flooring is not charged at an extra cost AND our full-length boards make DIY install easier and look far nicer!

OURS:

Dunster House Full Length Floorboards Included as Standard

THEIRS:

Competitor Half Cut Floorboards

All our garden buildings have been designed on the basis that any competent DIY customer should have no problem installing a product themselves in a short amount of time. You do not have to be an expert at DIY to build a Dunster House garden building, as we do provide you with comprehensive pictorial instructions. We totally understand that DIY is not for everyone therefore, you may want to consider getting in touch with a local carpenter or handyman to install it for you. But before you do, check out our construction video and decide for yourself!



Purlins are the large timbers used for structural support in buildings. We use very thick, heavy duty roof purlins to support your garden building.  At 140mm x 45mm they are amongst the thickest purlins available on the UK market. Competitors will often use thinner purlins to keep their costs down which means their roofs will not be as strong as ours. Using thinner purlins risks the roof collapsing or sagging during extreme weather – and that’s the last thing anyone wants!

Heavy Duty Roof Purlins

There is nothing more annoying than being in the middle of building something and finding that you don’t have the right fixings to continue. We include all of the screws, nails and fixings that you will need to put your garden building together – not many of our competitors are that thoughtful. This eliminates the need to worry about the type of screws or the length of nails you might need to get started – it’ll all be with your delivery.

Fixings Included

This garden building is under 2.5m high. Why does this matter? Under permitted development rights, buildings under 2.5m high can be placed as close as you want to a boundary (eg. a fence line) without planning permission. Garden buildings that are over 2.5m high need to be placed over 2m away from any boundary (eg. a fence line), which could lead to a lot of wasted space. If you want to find out more about permitted development rights see our planning guide.
Selecting the HighRise Extension option for your log cabin will result in the height exceeding 2.5m high. This will mean that your building may need planning permission – contact your local council for more information or find out more by visiting: Planning permission: When you need it – GOV.UK.

Unlike our competitors, we only use high-quality spruce timber on our wooden products rather than cheap pine or mixed timber. Why do we use slow grown spruce rather than the much cheaper knotty pine alternatives?

Spruce is considered more stable as it expands and contracts less than pine. This stability means that the spruce timbers in our garden buildings minimise splits from appearing as the timber changes along with the weather.  We responsibly source all our timber, where it grows slowly in the cold northern regions. We all know the old adage of counting the rings to see how old a tree is, well our timber grows slower and takes longer to get to size meaning it has more rings in it. This means it has a tighter grain, and each ring helps prevent cracks and shakes from appearing in the densely packed timber.

Our wooden garden buildings and climbing frames really are built to last therefore we use only the highest quality, slow-grown spruce.  Spruce is much more resilient to warps and splits compared to its cheaper alternative pine. Being a whitewood, it doesn’t discolour anywhere near as much as pine so it is also much more aesthetically pleasing for a garden structure. Considered more stable, less knotty and resinous than pine, spruce will also produce a lot less sap. It is also less dense meaning it is not as susceptible to mould and rot.

Outdoor Living Slow Grown Spruce

Outdoor Living Slow Grown Spruce II

The design of the log cabin incorporates a handy storage space – a separate room accessed through its own solid wooden door with a multi-point locking system. This full-height area makes a great playhouse, a workshop for small projects, or an ideal space to keep bicycles, garden tools and other large items out of the weather.

This extra storage space is interchangeable, so it can be added to either the left or right side of your garden cabin.

log cabin sidestore

Our cabin logs are designed to interlock with a chamfered finish to ensure a snug fit. The chamfered notch system is designed to prevent damp or wind penetration. Our interlocking logs make for speedy installation and minimal need for tools. Our garden buildings have been designed on the basis that any competent DIY customer will have no problem installing a product themselves in a short amount of time.

Unlike some competitors, we provide interlocking precision-engineered chamfered logs. Keeping your log cabin watertight and free from unsightly draft-producing gaps.

OURS:

Precision Engineered Interlocking Chamfered Logs

THEIRS:

Competitor Poorly Designed Log Cabin

The bearers of your garden building are pressure treated to help protect your garden building from the ground up. We provide a 10 year guarantee against rot and insect infestation for all pressure treated timbers.

Unlike some competition, we can offer a genuine 10-year guarantee against wood-eating fungal and insect infestation on pressure-treated timber.

All our Pressure Treated timber is for Use Class 3

10 Year Guarantee on Pressure Treated Timber

Add a flyscreen to the windows of your garden building, so you can benefit from letting the fresh air in while keeping those pesky insects out, without restricting visibility. An insect screen will allow you to still view out of the window to survey your surroundings, watch nature and look out at the beauty of your garden.

flyroom screens for porches

As the effects of global warming take place, the Earth is changing, with reports suggesting an expected increase in the number of insects around the world. An increase in temperatures over the coming years will speed up the growth rate of some insects. This includes the domestic housefly, which could see a rapid rise in its population. Order your flyscreens now to protect you for the future.

Keeps out insects

It’s always nice to be able to throw open the windows of your garden room to enjoy a warm summer breeze or cooling air. With the addition of a flyscreen mesh, you can enjoy the warm weather without worrying about unwanted insects getting in. Keep those flying insects from buzzing around as you try to work in your garden office or relax in your summer house.

Ventilation and comfort

Ventilation and circulation of fresh air is also important for the wellbeing of you and your garden building and helps to maintain a relaxed and comfortable environment inside. Flyscreens for windows give effective protection so you don’t have the annoyance of flies and other creepy crawlies.

Durable materials

The fly mesh is made of strong and water-resistant materials to last. Easy to fit

It is provided as a simple ready to install screen to fit the size of your garden room or log cabin window and fixes to the window frame. Easy to follow instructions will be provided alongside your order.

Easy to use

The roller flyscreen is easy to operate, with a handle to pull it down when the window is open, and a small clip will keep the screen in place. When not in use, the retractable flyscreen design allows it to be discreetly hidden away.

Ventilation is essential for the longevity of the Garden Building. This is to ensure airflow and minimise moisture at all times. We have provided ample vents to ensure that condensation is never a problem. Some competitors charge you extra for these or do not even offer them.

Vents Included with cabins

We only use full lengths of engineered precision cut and routed tongue and groove timber in our log cabins. These logs go through a process of being planed, leaving you with a smooth finish. We believe that using full lengths of planed timber gives you a more aesthetically pleasing and stronger product.

Other companies are happy to provide you with rough offcuts, glued and finger jointed together, creating a weakened cabin and off-putting appearance.

45mm log cabins

You’ve probably at some point left the window open and it’s suddenly started to rain. Usually, this would be an issue for log cabins with normal window hinges as they could rust. However, there’s no need to panic as our expertly joined windows come with our 5-star stainless steel friction stays, typically found on the uPVC windows in your home. This eliminates the needs for the typically found stay arm openers, commonly used on log cabins.

solid windows for log cabins

When constructing your log cabin, you do not need to worry about putting our timber windows together, as they come preassembled. So you simply need to slot them in, and fit the finishing touches. After all, we take pride in our DIY-friendly designed products. Many competitor products require you to painstakingly construct the windows and other hardware, such as window trims, and install the glass.

Did you know? You can also add a little character to your timber windows with some stylish Georgian bars, which we supply as standard. However, this is entirely optional and up to you. Not all products offer Georgian bars, so be sure to check the product specification.

OURS:

Dunster House Preassembled Windows, Doors and Hardware

THEIRS:

Competitor Non Assembled Windows, Doors and Hardware

Please note: If you upgrade to uPVC Windows and Doors, the glass is not pre-fitted.

Your security is of the utmost importance to us.  You have invested your precious time, thought, and money into creating your perfect garden building, therefore we want to ensure your valuables are as safe as they would be inside your own home.

Our doors feature an industry-leading domestic standard 6-point locking system consisting of espagnolettes, which slide in opposite directions as well as a 6-pin Euro cylinder, which has been tested to BSEN 1303:2005 classification, plus 2 shootbolts. Making it difficult for intruders to break in and steal your precious belongings.

Most companies will use a cheap and simple 4-point locking system. For us it’s a no-brainer – why would you compromise your security when we offer the best on the market!

Our windows use espagnolettes, which pull the window tightly into the draft seals attached to the frame. We also supply a solid handle and key that allows you to lock the window whilst you’re away. Most competitors only supply a multi-purpose stay arm opener for both locking and keeping the window open.

OURS:

Dunster House Log Cabin 4 Point Locking System

Dunster House Domestic Style Handles

THEIRS:

Competitor 2 Point Locking System

Competitor Log Cabin Stay Arm

Unlike other log cabins on the market ours are supplied as standard, tie the log cabin together and are adjustable. Our adjustable storm braces allow for natural movement of the cabin, which helps prevent gaps appearing between wall logs as the logs settle and move.

Garden Log Cabin With Storm braces included

All of our garden buildings have pressure-treated floor bearers as standard. This treatment prevents the timber bearers from rotting for up to 10 years and causing your garden building to sink. Pressure treatment forces the wood preservative into the timber rather than simply dip treating (essentially just covering the exterior) like many companies still do. Who wants to have to annually deconstruct and re-treat the bearers each year!

Due to this costly but effective process, we can offer our customers a genuine 10-year guarantee against rot and insect infestation on the bearers.  We do however recommend applying a good quality water repellent to the timber to prolong the longevity of the timber. Shockingly many of our competitors still offer untreated bearers to keep their costs down, so beware!

All our Pressure Treated timber is for Use Class 3

Pressure Treated Bearers

Rotten Untreated Floor Bearers

All of our log cabins are supplied with 19mm tongue & groove roof boards as standard. We make our roof from single pieces of slow-grown spruce as this is the perfect material for the job, especially when comparing to alternatives found on the market. Our tongue & groove roof boards are fitted in the same way where each board is slotted into the next, creating a strong surface and attractive ceiling.

 

Our roof insulation is supplied as panels of 25mm thick polyisocyanurate sheets which are supplied already chemically bonded to MR-P5. These sheets are very easy to fit to the roof of your cabin, they simply need to be screwed down through the sheet into the roof board below. This giving you a very quick, easy and cost-effective way of lowering the U-value of your roof from 3.49 W/m2 K (for just 19mm roof boards) to a far more efficient 0.76 W/m2 K (19mm roof boards and insulation).

19mm Roof For Log Cabins

Our floors come as standard, but that doesn’t mean we compromise on quality. You may by now have noticed that not all log cabin companies are the same. Beware log cabins with untreated floor bearers, which offer no protection against floor level damp penetration. We could make excuses that you may wish to use the patio as a base, as in some European countries, but we are in the UK and our customers expect to get the floor included, after all its an integral part of the building. This doesn’t mean either that we use low-grade timber bearers, because as the saying goes, out of sight out of mind!

 

All of our log cabins are supplied with pressure treated floor bearers and 19mm slow-grown spruce tongue & groove floorboards as standard. It is the perfect material for the job, especially when comparing to cheaper pine and OSB board found in the market. Our floorboards create a strong surface with an attractive appearance.

 

Subject to how you’re going to use your log cabin, and whether it’s for all-year-round use, you should consider adding floor insulation. Heat loss through cold rising up accounts for a lot of discomfort. Our 25mm thick polyisocyanurate insulation can be fitted between the bearers of the cabin prior to putting in the floorboards. This will lower the U-Value of your floor from 2.81 W/m2 K to just 0.77 W/m2 K, saving you money on heating and helping to keep your feet warm in those cold evenings!

19mm Floor log cabins floor included

Our garden buildings feature key-lockable outward opening windows, so you don’t lose internal space, allowing you to accommodate furniture underneath the window. Our windows have been designed to include draft seals that prevent wind and rain from entering your garden retreat. You may think it’s over the top, we think it’s just standard.

Wide opening Log Cabin Windows

Both our doors and windows are fitted with internal beading used to secure the glazing in place. This beading style is typically found in uPVC windows and is a proven method of security. However, there are still some companies that externally bead their windows. Allowing intruders to remove the glazing from the outside of your garden house and gain access.

internally beaded windows

We use 4mm thick toughened glass, not Perspex or Styrene which can scratch easily and cloud up over time. This is also thicker and less likely to break when hit with the neighbour’s pesky football compared to the industry standard of 3mm horticultural glass.

Toughened glass Not cheap styrene

Toughened glass Not cheap styrene

Our 34mm and 45mm log cabins come with 24mm double glazing included at no extra cost. Our 24mm double glazed sealed unit comprises of two, 4mm single glazed panes of toughened glass on either side of an aluminium spacer bar, designed to absorb any excess moisture within the sealed unit.

All our sealed units conform to BS EN 1279 standards. This standard covers the requirements for insulating glass units, including thermal and sound insulation. The sealed units are tested to show that they will not suffer from any form of condensation within the unit.

Quite simply we do not believe in compromising on quality!

Be wary of cheaper log cabins provided by some competitors offering less effective 14mm double glazing which provides less sound and thermal insulation.

OURS:

24mm Double Glazing Included as Standard

THEIRS:

Competitor Less Effective 14mm Glazing

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Yes. Any additional windows and doors that you choose to purchase as an extra with your garden building will require you to cut an aperture in order to fit it in.

 

No, we do not have any showrooms or display sites. All business is completed online and via our website. If you do have any queries that haven’t been answered with the information provided online, please feel free to call our sales team on 01234 272445.

U-values tell us about the heat loss properties of the material you are measuring. The lower the number, the better insulated the Garden Building will be. Find out more here.

There are several options available when looking at how to keep your log cabin warm. Firstly, if you are only planning to use your log cabin occasionally, we would just recommend putting in a small electric heater in the cabin. Usually you would turn that on 20 minutes before you are going to use it to kill of the chill.

However, if you are planning to use your log cabin all year round for either business purposes or a play area etc, we offer different wall thicknesses on our cabins. 28mm, 34mm, 45mm and 62mm (insulated) are the options available – further details on insulation is below.

We have designed a unique concept – the Warmalog (insulated) cabin range, which is our insulated range of cabins. The cabin walls, roof and floor have all been insulated with polyisocyanurate to help you keep warm in the winter and cool in the summer. The wall thickness is equivalent to having a standard cabin with walls 140mm thick.

Discover our Warmalog Collection (insulated log cabins)

Alternatively, all our garden offices are fully insulated too, which is a great other option for our customers. Again, we use polyisocyanurate throughout the whole building, not Rockwool or foil backed bubble wrap like some competitors are using. The heat retention properties in our offices also help you spend less on your energy bills, by allowing you to not have the heating on for long.

Discover our Garden Office Range

Yes, Dunster House offers finance through Black Horse FlexPay.

Black Horse FlexPay is a digital credit account which lets you buy now and spread the cost of your purchases.

An instalment plan is always available in your account when you are spending above £100 (up to £5,000); or you can pay using your flexible credit – all your purchases are consolidated into one monthly payment.

You can apply for finance by selecting Black Horse FlexPay at checkout.

For more information about FlexPay, visit https://www.blackhorseflexpay.co.uk/

Dunster House Limited is a credit broker and not a lender Registered Office: Caxton Road, Bedford, Bedfordshire, MK41 0LF. Registered in England and Wales number 02913901.  Authorised and regulated by the Financial Conduct Authority, register number 1019922. Dunster House Limited is an appointed representative of Black Horse for the purpose of introducing credit provided by Black Horse.

Black Horse is a trading style of MBNA Limited. MBNA Limited Registered Office: Cawley House, Chester Business Park, Chester CH4 9FB. Registered in England and Wales number 02783251. Authorised and regulated by the Financial Conduct Authority.

MBNA Limited is also authorised by the Financial Conduct Authority under the Payment Services Regulations 2017, register number 204487, for the provision of payment services.

It is 2.46m (8' 0") high

 

Dunster House commit to continuously improve the sustainability level of our sourcing, by favouring stricter more credible certification and verification standards, and sourcing requirements. We are committed to avoiding sourcing from unknown or unsustainable sources.

Where possible, Dunster House are committed to procuring wood products that have been certified against credible, internationally recognised standards for good forest management, to ensure that material originates from well managed forests. In line with this, we preference products certified to the standards of FSC (Forest Stewardship Council) and PEFC (Programme for the Endorsement of Forest Certification).

What about illegal timber?

Dunster House are committed to sourcing only material that is produced, processed and traded according to applicable legislation.

What is your Environmental Responsibility policy? Dunster House are committed to promoting responsible stewardship of the environment and its natural resources. We are committed to lessening the impact on the environment caused by our own activities, and those of our suppliers.

Do you have a Supply Chain Management policy? Dunster House will ensure that information about suppliers and material is gathered as part of the RPP. We will ensure regular engagement with our suppliers to ensure compliance with UKTR requirements, working with them to ensure continuous improvements. We will also specify that, wherever possible, that material sourced is covered by FSC and PEFC, to ensure responsible forest management.

Yes, we do! Some postcode restrictions do apply however we are pleased to be able to deliver to many parts of Scotland.

For more information – Where Do We Deliver?

We do not currently offer installation. All our garden buildings have been designed on the basis that any competent DIY customer will have no problem installing a product themselves in a short amount of time.

You do not have to be an expert at DIY to build a Dunster House garden building, as we do provide you with comprehensive pictorial instructions. Also, if you prefer video tutorials, we do have a selection of videos on YouTube which will support you in building your product.

We totally understand that DIY is not for everyone and it can be very overwhelming to start building your own garden product. Therefore, you may want to consider getting in touch with a local carpenter or handyman to install it for you.

If you do take on the challenge to put your garden building together, we are always here to help. Do not hesitate to contact us at any stage of putting your product together and we can provide you with all the assistance you may need. Contact our customer service team via email at [email protected].

Due to the unique design of a Dunster House product, in the vast majority of cases our garden buildings can be installed without the need for planning permission.

However, there are a few other factors to consider:

As all properties are different in size, shape and style we can only advise based on how we have designed our products, not on your property.

When to consider planning permission:

If the garden building exceeds over 2.5m tall – the majority of Dunster House buildings do not exceed this. If you intend on putting an outbuilding in front of the main elevation of your property (as it was originally built or as it was on 1st July 1948) will require Planning Permission. If you live in a listed or graded building If you live in a designated area such as areas of outstanding natural beauty, national parks, world heritage sites and conservation areas. If there is a possibility that over 50% of your garden would be taken up by outbuildings.

Click here for more information on Garden Building Planning Permission in the UK.

Still not sure?

If you are still in doubt, we highly recommend getting in contact with your local authority before making a final purchase.

This Log Cabin’s measurements are:

A Log Cabin is a garden building constructed using individual lengths of timber (logs), which interlock to form a solid structure. Log Cabins can have numerous uses, such as a garden retreat or garden office, an extra family room, a games room, a music room, a gym… the list is endless.

Our Log Cabins are made from slow-grown spruce, and feature pressure treated bearers, 4mm toughened glass and domestic locking systems.

We offer a genuine 10-year guarantee against rot and insect infestation on pressure treated timber, which covers the floor bearers of your product.

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terminator wooden log cabin 5.5 x 3.0 garden office cabin
  • Please Note: All sizes quoted are nominal
  • External Width: 5.49m (18' 0")
  • External Depth: 2.99m (9' 9")
  • Internal Width: 3.78m (12' 4")
  • Internal Depth: 2.77m (9' 1")
  • Internal Area (m2): 10.12m2
  • Ridge Height: 2.46m (8' 0")
  • Internal Eaves Height Front: 2.33m (7' 7")
  • Internal Eaves Height Back: 2.08m (6' 9")
  • Building Style: Strong Interlocking Tongue & Groove Logs
  • Walls: 100% Slow-Grown Spruce
  • Wall U-Value (W/m2k): 1.93 W/m2K
  • Roof Thickness: 19mm Tongue & Groove
  • Main Door Height (Walkthrough Height): 1.82m (5' 11")
  • Main Door Width (Walkthrough Width): Wide Opening 1.11m (3' 7")
  • Roof Covering Options: None or Felt
  • Floor Thickness: 19mm Tongue & Groove
  • Floor Bearers: Pressure Treated for Longevity
  • Door Locking System: Industry Leading 6 Point Lock - 2 Cams, Latch & Hook Bolt, 2 Shootbolts
  • Door Height (including frame): 2.02m (6' 7")
  • Side Door Height (Walkthrough Height): 1.48m (4' 10")
  • Window Locking System: Secure Multi-Point Locking with Espagnolettes
  • Window Opening Size: 0.43m x 1.37m (1' 4" x 4' 5")
  • Glazing Options: 24mm Double Glazing as Standard
  • Glazing Material: 4mm Toughened Glass
  • Sidestore External Width: 1.50m (4' 11")
  • Sidestore External Depth: 2.50m (8' 2")
  • Sidestore Internal Width: 1.40m (4' 7")
  • Sidestore Internal Depth: 2.32m (7' 7")
  • Sidestore Internal Area (m2): 2.99m2
  • SideStore External Height 1.90m (6' 3") Tallest, 1.62m (5' 4") Shortest
  • SideStore Internal Height 1.81m (5' 11") Tallest, 1.57m (5' 1") Shortest
  • SideStore Wall Thickness 28mm Tongue & Groove
  • Sidestore Roof Thickness: 19mm Tongue & Groove
  • Sidestore Floor Thickness: 19mm Tongue & Groove
  • Included as Standard: Plastic Vents, Adjustable Storm Braces, Assembly Instructions and Fixings
  • Please Note: This Log Cabin arrives at your door untreated. We sell a range of suitable coloured timber treatments (supplied in tins)
  • Approx. DIY Assembly Time: 1 - 2 Days. This time is an approximation, based on two people building the basic product with no added extras. Assembly time may vary with additional items such as roof shingles, or external circumstances like the weather

Terminator SideStore Log Cabin Ratings

P Frith

I bought the Terminator 4×3 garden room (45mm wood) from Dunster in April 21 and used their RapdiGrid base as well which worked really well and a much preferred option for me compared to putting in a concrete base. Really helpful customer service guys made purchasing very painless and even enabled me to modify purchase several weeks after being made which was really helpful. Delivery was roughly in the 8-10 weeks estimated and the communication surrounding the delivery is excellent too, even able to track the lorry coming to your property online. Delivery will only drop all the materials literally from the kerb just onto your property and no further and with it taking me just under 3 hours shuttling back and forth to get it all to the back of my house be sure to factor this in if you don`t want it all stood at the front. As the wood is untreated be aware that you will need to cover it up too although there is some plastic covering left by the delivery crew it wasn`t enough for me to properly cover it over so had to use a large tarp to do so until I was ready to build it. The overall quality of the product seems really high and everything fitted/worked. My only slight negative would be around the instructions that came with it. I`m an OK DIY`er and thankfully had a really knowledgeable and handy friend who helped me build it all. If it had just been myself and someone of similar ability I might still be out there now building it given the instructions given which can be somewhat vague in places and diagrams where you really need to see clear positioning information are quite blurred whether viewed on the printed copy or online. As it was it took me and my mate a very full 2 days to get it all up and finished ready to be painted/treated but as I say this would have been longer without skilled help. Overall though really happy with the experience and finished product and seems very good value for money when compared to many others out there. It certainly looks as though the quality is such that it will last many years if looked after but I guess only time will tell.

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K McDonald

Standard of timber was very good. My log cabin definitely is built to last. The additional side shed looks smart but is deceptively low and causes Tourette’s so could easily be redesigned higher without compromising the fit . But again well built. The construction was well described in the instructions and installation easy. Well I watched and it seemed very quickly assembled in quite a tight spot in my garden. Would definitely recommend Dunster house products as great value for money.

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N Waters

Happy with the service and quality of the terminator.

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J Hall

great item , good communication .would recommend

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Delivery Information

* Free delivery on orders over £200.

We deliver our products to the mainland United Kingdom (England, Wales and most of Scotland). Some exceptions apply; these are illustrated on the map below.

Postcodes affected include:

  • TR
  • TQ6, 7, 8, 9
  • EX19, 20, 21, 22, 23, 38, 39
  • LD
  • PL10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35
  • SA
  • KW
  • HS
  • ZE
  • KA27, 28
  • IV1, 4, 6, 7, 8, 9, 10, 11, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 51, 52, 53, 54, 55, 56, 63
  • PA20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 41, 42, 43, 44, 45, 46, 47, 48, 49, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 80
  • PH32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44

Dunster House delivery map

Green – Free Assisted Delivery

Red – We are unable to deliver to these areas.

Purple – For orders to Ireland & Northern Ireland, please visit our Distributor in Ireland here.

Delivery Service

All of our products are delivered using our own fleet of vehicles, not sub-contractors. We have a large number of vehicles dedicated to delivering our quality products so we can guarantee maximum care is taken during the delivery process.

Our deliveries take place Monday to Friday between the hours of 8:00 am and 6:00 pm.

When the delivery vehicle is unloaded, it is important that you check to make sure all of the items and instructions have arrived and are correct. You will also receive a component list to check your items against. If anything is missing or damaged, it is essential that you note this on your paper work when you hand it back to the delivery driver.

Prices for our delivery services can be found on individual products.

Please note that goods will be delivered to the first point of contact at the front of your property e.g. on your driveway. This must be within 20m from the delivery vehicle (Safely Parked at Kerbside). Our team will be responsible for assessing the risk of carrying out delivery upon arrival at the property.

Should you require further information on our assisted delivery services, please click here to read our Terms and Conditions, alternatively you can contact a member of our Sales Team.

See the locations we deliver from.

Q: Where can I find more information?

A: If you have any questions regarding your delivery, you can telephone our Dispatch Team. Contact details for the Dispatch Team of your nearest branch can be found on your order confirmation. If you need to track your delivery or access your manuals in advance of your delivery, you can visit the Customer Log-In Area of our website.

Thank you for taking the time to read about our terms and advice during this period. We hope you can enjoy your Dunster House garden product for many years to come.

Treatment Visualiser

This Represents The Terminator 4m x 3m Log Cabin

Wall colour

Log Cabin Treatment Cornish Cream
Mendip mist wood treatment
Silver Grey Swatch
Slate Grey Wood treatment
Stone grey treatment options
light brown wood treatment
Hazlenut wood treatment

Trim colour

Log Cabin Treatment Cornish Cream
Mendip mist wood treatment
Silver Grey Swatch
Slate Grey Wood treatment
Stone grey treatment options
light brown wood treatment
Hazlenut wood treatment
Terminator Log Cabin 4m x 3m

Why Buy From Us?

Buy with confidence! Established for over 30 years, you can rest assured of our knowledge and experience as industry leaders.

On pressure treated timbers*. We don’t dip-treat our timber unlike some competitors. Dip treatment isn’t as effective at protecting against rot and infestation!

All products are uniquely designed and of high quality with many industry leading features you will struggle to find anywhere else!

A UK company and family run business. Our products are designed  and distributed from our 11 UK distribution centres.

Many have bought from us over the last 30+ years due to our superior specification and the fact that our products are designed with the DIY market in mind.

Free delivery on most products*. Delivered to you by our own fleet of vehicles and dedicated drivers.

Inspiration/Customer Stories

Dean’s Garden Cinema Room

View Case Study

Ed’s Garden Music Room and Home Office

View Case Study

Andy and Rose’s Garden Games Room

View Case Study

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  1. * Free delivery on orders over £200.
  2. Savings based on December, 3rd,2024

Terminator SideStore Log Cabin

From £3,299.99 £5,074.99
Save £1,775