Builder's sketch: where the beams can go, the stair to the deck and the toilet roof
ev-121 · sketch · 2026-09-19 · Extracted
What this records
THE FIRST REPORT OF HOW MUCH GROUND THERE ACTUALLY IS across the shelf. He was sent to find where the beams can physically stand and says they could be up to 2.60 m apart at all four stations, inside about 3 m. The design uses 1.600 and wants to keep it — the joists cantilever past the beams and that overhang is what keeps them light — so this is headroom rather than a change. It bears on a-18 and a-25, which have had one measured point between them since August. It also gives an approximate height or length for the toilet roof, consistent with the model either way, and a support base at the foot of the stair at 120 x 30 against the 140 x 35 we have drawn.