All of our own Hortons cabins have the option of a twinskin wall. If you buy a Twinskin, it's not just the walls that have the insulation cavity, it is in the roof and floor as well for all round insulation. Use this link for more choices of our 4m wide insulated log cabins
If you want to use a garden room all year round, then it needs to be insulated in order to be comfortable during the winter - our twinskins are specifically designed for this purpose. Insulation does of course work both ways. Therefore these cabins will also be cooler in the summer.
A warm cabin is a start, but to truly to your own cabin then we offer all sorts of options that are not only practical but also enhance the aesthetics as well. See our log cabin extras page.