Insulated garden rooms
Cedar Insulated Garden Rooms

With its low density and a high proportion of air space, the cedar insulated garden rooms are the best thermal insulator among the commonly available softwood species. They are far superior to brick, concrete and steel. It has the unique quality of having different shades in almost every length of cladding. The external cladding is 18mm Western Red Cedar, vertically clad with a hidden nail profile.

  • The framework structure of the Platinum Pent is 95mm x 45mm.

  • The walls contain a breathable membrane, 75mm Celotx insulation, and then a vapour barrier.

  • The roof is finished with UPVC fascia boards.

  • The internal finish is 9mm moisture resistant MDF with a V groove every 200mm to give a panelled effect, this is factory-sprayed white.

  • This is factory sprayed white Doors and windows are UPVC with 4/20/4 TGH double glazing.

  • The floor is insulated with 75mm PIR boards.

  • Flooring is 18mm OSB.

  • Doors and windows are UPVC with 4/20/4 TGH double glazing.

  • All measurements are external.

Best solutions

Let’s work on your project together

Bespoke Outdoor Living Spaces

Bespoke Outdoor Living Spaces

We use our years of experience and knowledge to create your perfect insulated garden rooms in any space and to fit any size.


If you are working from home and need some extra space, our insulated garden rooms are a perfect choice, whether you’ll be working hard or enjoying some downtime. Whatever the reason, our fully Insulated garden room will keep you cosy throughout the year, allowing you to use them any time of the year.

See what your insulated garden rooms could look like.

Cedar Insulated Garden Rooms

Example sizes and prices (Any size can be catered for)

  • 3m x 2.5m = £12350
  • 3m x 3m = £13400
  • 4m x 3m = £16250
  • 5m x 3m = £21900
  • 6m x 3m = £24950