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Dunster House Ltd.
Established 1994
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What is the best wall thickness for a garden building?

What is the best log cabin wall thickness?


If you intend to use your log cabin all-year-round - rather than seasonally - you should choose a log cabin wall thickness that is as thick as possible, to maximise the insulation. U-Values provide a measure of the heat transfer through different materials, to allow you to compare options.


We use interlocking tongue & groove timber in our walls to provide strength and stability, it also allows timber to naturally expand and contract.


28mm single tongue wall thickness Our 28mm walls are ideal for medium sized buildings for seasonal use (U-Value 2.59 W/m² K)

34mm Wall Thickness Log Cabins

 Our 34mm walls contain over 20% more wood than a 28mm wall. (U-Value 2.26 W/m2 K)


45mm double tongue wall thickness Our 45mm walls contain over 60% more wood than a 28mm wall and are ideal for use all-year round. (U-Value 1.93 W/m² K) 


62mm triple tongue insulated logs Our 62mm insulated walls are a sandwich of timber and polyisocyanurate. An innovative concept which helps retain heat far better than Rockwool or polystyrene. It produces a U-Value equivalent to 140mm wall thickness. (U-Value 0.69 W/m2K


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