Timber Frame Wall

Timber frame is a fast, lightweight way to build UK homes and extensions, but its performance depends on well-resolved junctions. This category covers timber frame walls from foundation to roof: ground floor and foundation junctions, windows and doors, eaves and verges, abutments with existing buildings, and timber frame extension details. It also includes airtightness and wind-tightness details developed with Ecological Building Systems, Passivhaus timber frame walls and CLT details.

Are there timber frame extension details? Yes. Sets published in September and December 2025 cover timber frame extensions, including boundary walls, windows, doors, eaves, rooflights and flat roof parapets.

Which Building Regulations matter most for timber frame walls? Part L for thermal performance, Part B for fire (including cavity barriers) and Part C for moisture. Check the timber frame manufacturer’s guidance alongside these details.

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