Read me first: Every size, quantity and price on this sheet is a rough starting point, not gospel.
Footprint worked out at ~6.0m wide (existing 5m back wall + 1m out to new wall J) × ~4.4m deep internally,
with the C/D/E/F notch squared off by the new dashed wall to G. Wall build-up confirmed as 100mm brick /
50mm cavity / 100mm brick (250mm total) — exact insulation spec left to the builder. The whole D run (6.0m)
is the bifold opening: 1.4m brick pier — 3.2m bifold (4x 800mm leaves) — 1.4m brick pier, full height
2.5m, no dwarf wall along D. Edit every row below —
qty, unit, size and £/unit are all yours to change. Nothing here is a quote. Everything autosaves in this
browser as you type.