
Advanced Wall System
Tanalised framework, breathable membrane and maintenance-free composite cladding — three layers engineered to work as one.
Why Our Sheds
Every Sheds DIY composite building is built around the same eight ideas. No shortcuts. No surface coats. No timber that fails on year three. Here's exactly what's inside — and why it matters.

Tanalised framework, breathable membrane and maintenance-free composite cladding — three layers engineered to work as one.

Treatment forced deep into the wood — not a surface coat that wears off in a season.

The exterior-grade standard for above-ground use. Protected against rot, fungi and insect attack.

Vacuum, flood, pressure, vacuum, dry. Five stages that push preservative deep into the grain.

35×45mm treated timber with integrated corner bracing for rigidity where it matters.

BBA-approved Wraptite as standard — sheds wind-driven rain, lets vapour escape.

One-piece seamless membrane with glue provided. Watertight, UV stable, decades of life.

Manufactured in the West Midlands from materials sourced through trusted UK suppliers.
Built smarter. Built to last.