FRAME CUTTING — REPLACEMENT PIECES ONLY
Cuts and layout marks: centimeters. Purchased stock and equipment: imperial.
Stock for F1 and F2: nominal 2×4, actual 1-1/2 × 3-1/2 in. Do not rip the stock cross-section.

F1 uprights: 4 pieces total, cut length 213.865 cm. Cut notches into the OUTSIDE broad face. Measure from the bottom squared end. Exact notch zones in cm: 0–8.890; 102.4875–111.3775; 204.975–213.865.
F2 rails: 6 pieces total, cut length 127.565 cm. Cut into the INSIDE broad face. End notch zones in cm: 0–8.890; 118.675–127.565. The 127.565 cm length includes both overlaps; do not use the clear opening between the uprights as the blank length.
For actual 1-1/2 in thick boards, cut 1.905 cm deep into each mating member. Use half the measured thickness and the real mating board width. Both broad faces should finish flush when the complementary halves overlap, giving an assembled thickness of 1-1/2 in.

Suggested low-complexity method:
1. Make one trial joint in two offcuts from the actual timber. Square a blank, label both faces and the bottom. Transfer the actual mating board width with a square and knife. Mark half the thickness on the two narrow edges.
2. Clamp and fully support the board. Make a shallow starter on the waste side of the shoulder line. Saw the shoulders on the waste side; then make several relief cuts within the waste. Stop just short of the depth line and finish with the chisel. Never cut below the line.
3. Remove small chips with a sharp chisel. Work from each edge toward the middle, taking thin cuts and keeping both hands behind the cutting edge. Pare the floor flat to the line.
4. Dry-fit. Faces flush, shoulders touching, no rocking. Pare only high spots if tight; remake a loose or overcut piece. Assemble the whole frame dry on a flat bench and compare the diagonals before applying adhesive.

The drawings show how to cut the established model. They do not verify the existing frame, timber condition, hardware load path or a structural fastening schedule. Retain sound existing joints instead of recutting an assembled frame.

Primary method reference: https://www.leevalley.com/en-gb/discover/woodworking/2020/august/mastering-handsaw-cuts
Retrieved 2026-10-08. Supports knife-marking, a waste-side starter, bench clamping and handsaw shoulder cuts. Specific layout dimensions and the rest of the sequence are original project guidance.
