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Dunster House Ltd.
Established 1994
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FREE DELIVERY
ON MOST ORDERS
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UK COMPANY
responsibly sourced timber
RESPONSIBLY SOURCED TIMBER
millions of products
MILLIONS OF PRODUCTS SOLD
1:
Your Warmalog
APPROX 1 - 15 WORKING DAYS
£10,354.99 
2:
Optional Extras
3:
Foundation Options
4:
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TOTAL: 
£10,354.99  
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Specification For 62mm Wall Thicknesses
(Change wall thickness on customization tab to update information)

Wide Opening Windows

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Wide Opening Windows Warmalogs
 
Wide Opening Windows
 
Our garden log cabins 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.

Multipoint Locking Windows

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Multipoint Locking Windows Warmalogs
 
Multipoint Locking Windows
 
Just like our doors, we use mushroom headed 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. We also supply Georgian Bars as standard. Most log cabin companies only supply a multi-purpose stay arm opener for both locking and keeping the window open.

Internally Beaded Windows

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Internally Beaded Windows Warmalogs
 
Internally Beaded 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.

62mm Interlocking Logs

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62mm Interlocking Logs Warmalogs
 
62mm Interlocking Logs
 

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.

 

4mm Toughened Glass

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Insulated Log Cabin Toughened Glass
Insulated Log Cabin Styrene
 
Toughened glass
 

The 4mm toughened glass that’s used to make up the double glazing in our windows and doors of our Warmalog cabins for increased security and resilience. It's much better than the 3mm ‘Shed-Spec’ horticultural glass which is commonly found in our competitors garden buildings.  It is much more difficult to scratch or bend than the plastic alternatives, such as Styrene, Acrylic and Perspex, so it'll preserve the clear view of your garden.

 

The tempering process makes our toughened glass far stronger than the alternatives, and harder to break than normal glass. In addition, if it does happen to break, it will shatter into many small pieces, rather than scattering dangerous, razor-sharp shards. So confident on the superior quality we tested it against the other types of glass commonly found on the market and, of course, it came out on top!

 

24mm Double Glazing

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Insulated Log Cabin 24 mm Double Glazing
 
24mm double glazing
 

This Warmalog cabin comes complete with 24mm sealed window units for increased insulation and noise-reduction. This is a single, ready-to-install unit comprising of two sheets of 4mm toughened glass with a 16mm aluminium spacer, which allows for optimum convection current between the glass, ensuring condensation-free windows.

 

They are made in our own factory and fully conform to European Standard EN1279, unlike most of our competitors. 

 

Slow-Grown Spruce

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Insulated Log Cabin Slow-Grown Spruce Wall
Insulated Log Cabin Slow-Grown Spruce Timber
 
Slow Grown Spruce, Not Cheap Pine
 

Unlike our competitors, we only use high-quality spruce timber in our garden log cabins 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 walls of our garden buildings minimise gaps 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 appearing in the densely packed timber.

 

Our garden buildings 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 log cabin. 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.

 

Many manufacturers use a mix of timber saving them money. They will buy the lowest cost timber and then mix these up during production, often using finger joints. Ending up with a cabin, where the walls are a mix of pine (redwood) and spruce (whitewood). Not only does the log cabin then look comical, with stripy walls of different timbers, but this just shows a lack of pride about the finished product. 

 

10 Year Guarantee

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Insulated Log Cabin 10 Year Guarantee
Insulated Log Cabin 10 Year Guarantee II
 
10 year guarantee
 
All of our Pressure Treated Timber comes with a genuine 10-year Guarantee against rot and insect infestation. The process of pressure treatment forces the wood preservative into the timber rather than simply dip treating (essentially just covering the exterior) like many companies still do. If the timber is only dip treated then you would have to buy and apply treatment to your cabin every single year in order to maintain their worthless 'guarantee'. 
 

4 Point Locking System

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Insulated Log Cabin 4-Point Locking System
 
4-point locking system
 
Windows and doors are at the heart of your Wamalog’s security, and we design ours to ensure that only welcome visitors can enter your building. We feature as standard, a secure four-point locking system, including: hook, locking latch and two roller cams. We combine this with a 6 pin Euro cylinder, the same type of lock cylinder you would find on the front door of a typical house. Why should your log cabin be any less secure than your home?

Steel Braces

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Insulated Log Cabin Storm Braces
 
Steel Braces
 
To control natural expansion and contraction in the timber, the Warmalog features steel straps on the inside and outside of the cabin known as storm braces, secured by screws and bolts, these braces are adjusted to spread the timber's natural movement equally across a much larger area, thus avoiding the worst effects of localised expansion and contraction within the wood. 
 

Fully insulated

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vanguard insulation layers
 
Fully insulated
 
This Warmalog is fully insulated, promoting heat retention and saving you money on your heating bills. We always supply Polyisocyanurate insulation, a superior insulator than Rockwool or Polystyrene. We use 30mm thick Polyisocyanurate insulation, sealing off the building from elements to help save energy. The Warmalog achieves a low 'U' value of 0.59, which shows it has great insulation efficiency.

Avoid sagging roof W5.8m x D4.8m

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Avoid Sagging Roof Vanguard Log Cabin
 
Avoid sagging roof
 
The Vanguard Warmalog features heavy duty 140mm or 210mm by 45 mm wide supporting roof beams prevent dangerous and unsightly sagging. Just like every other part of your cabin, this important part of the structure will never be glued or screwed together offcuts. We only use single pieces of timber for our purlins to provide you with a strong and stable roof.

Tall walkthrough height

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Tall Walkthrough Height Vanguard Log Cabin
 
Industry Leading Walkthrough Height
 
We were the first on the market to provide tall walkthrough height to the UK. There's no need to 'duck' on the way in through our quality French doors. With a tall walkthrough height of 6'2" (1.88m) you’re free to move in and out of your cabin concussion free. Others have tried to copy us but decided to include the doorframe as part of the walkthrough height. ​
 

Adjustable hinges and friction stays

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Log Cabin Friction Stay
Log Cabin Adjustable Door Hinge
 
Adjustable hinges and friction stays
 

Our expertly joined windows come with 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.

 

We’ve all, at some point in our lives, left the window open and it suddenly starts to rain. Usually, this would be an issue for normal window hinges. However, there’s no need to panic about rusty hinges with our domestic stainless-steel hinges.

 

We also include heavy duty easy-adjust hinges for our doors which allow you to make minor changes if ever required. 

PRESSURE TREATED BEARERS

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Log Cabin Pressure Treated Floor Bearers - Vanguard Warmalog Insulated Log Cabin
 
Pressure Treated Floor Bearers
 
All of our garden buildings have pressure treated bearers as standard. As they are exposed to the damp, cold ground. This treatment will prevent them from rot, decay and insect infestation for up to 10 years. 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 only suggest that you apply a good quality water repellent to prolong the longevity of the timber.

Flyscreens Now Available

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Flyscreens now available
 
Flyscreens Available
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.

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. 

Practical Design

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Practical Design Log Cabins Interlocking Logs
 
Practical and expertly engineered by design
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.

Designed for the DIY Market

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Designed for the DIY Market 

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! 

 

Have a question?


What is a Warmalog Insulated Log Cabin?

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A Warmalog® Insulated Log Cabin is a garden building unique to the Log Cabin industry and exclusive to Dunster House. This unique Log Cabin features a 62mm sandwich of slow-grown Spruce timber and Polyisocyanurate insulation, which come together to create a revolutionary type of wall log. and roof and floor insulation, this creates a thermally efficient garden building perfect for using all year round. Warmalog® Cabins are insulated in all directions. The floor has a 50mm thick insulated structure, the roof is 60mm (also insulated), coupled with 24mm double glazed sealed units made from 4mm toughened glass. Thanks to these and other heat-conscious design details, these Warmalog® cabins have an equivalent U value to 140mm logs and achieve a U value of 0.59. This means that you can feel confident your cabin will remain cool in the warm months and warm in the cool months.

What size Cabin can I have?

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We offer a range of Warmalog® cabins. The smallest is 2.8 metres wide by 3.0m deep, and the largest is 4.8m wide by 5.8m deep.

How big is this Insulated Log Cabin?

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This Insulated Log Cabin's measurements are: 5.80m (19' 0") x 4.83m (15' 10")

How high is this Insulated Log Cabin?

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It is 2.86m (9' 4") high

How much is this Insulated Log Cabin?

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This product starts from £ 10354.99

What base do I need for this Insulated Log Cabin?

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We recommend a flat, level base at least 100mm bigger on each side. e.g. A 4m by 3m building would have a base of 4.2m by 3.2m See more details here. The base can be concrete or made from our RapidGrid Foundation system.

Can I paint the Log Cabin?

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Yes, we recommend a superior quality light coloured 'Barn' paint for the exterior, as well as a clear silicone sealer for the joints. These are available from your local DIY shop.

Do I need planning permission for this Insulated Log Cabin?

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Take our quick survey to find out!

How thick are the walls?

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The walls of this Warmalog™ Insulated Log Cabin are 62mm Thick.

What are u-values?

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

Do you deliver to Scotland?

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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?

Does Dunster House Responsibly Source Its Timber?

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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.

Have a question?


We deliver our products to 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
  • LD2, 3, 4, 5
  • PL10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35 
  • SA3, 4, 5, 6, 7, 8, 9, 14, 15, 16, 17, 18, 19, 20, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 70, 71, 72, 73, 61, 62, 63, 64, 65, 66, 67, 68 and 69
  • 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 

Delivery Price

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 8:00am and 6:00pm.


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.





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 https://dunsterhouse.co.uk/customer-login-area/log-in



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.

Warmalog temperature test - 19/04/2017
Temperature outside the Warmalog Cabin:  11°c
Temperature inside the Warmalog Cabin: 12°c

Temperature after using a 2KW heater:
After 30 minutes: 22° c
After 60 minutes: 30° c

Wall, roof and floor temperature:
The top of the rear wall: 35°c
The bottom of the rear wall: 30°c
The top of the window wall: 32°c
The bottom of the window wall: 30°c
The top of the door wall: 34°c
The bottom of the door wall: 29°c
The top of the full wall: 35°c
The bottom of the full wall: 32°c
The temperature of the roof averaged between 34°c and 35°c
The temperature of the floor averaged between 28°c and 29°c

Similar sizes
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† Reference to Price on 24th November 2023
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