room floor
murphy bed footprint, down
proposed new door
The room
8.7 m² 3.49 × 2.84 m max.
Fit against your survey
| Wall | Yours | Fitted | Diff |
|---|---|---|---|
| Top (window wall) | 349 | 349.0 | 0.0 |
| Shared, kitchen side | 284 | 283.5 | −0.5 |
| S1 (new door wall) | 144 | 145.2 | +1.2 |
| S2 | 131 | 132.2 | +1.2 |
| the 7 cm kink | 7 | 8.2 | +1.2 |
| S3 | 43 | 44.2 | +1.2 |
| S4 | 46 | 47.2 | +1.2 |
| Bed wall (47+92+39) | 178 | 178.5 | +0.5 |
Nothing moved more than 1.2 cm to make it close — that is a good survey for a freehand one with a phone angle app.
Angles
| Corner | Measured | Fitted |
|---|---|---|
| D | 144° | 151° |
| E1 | 195° | 192° |
| E2 | 198° | 195° |
| F | 143° | 148° |
| G | 128° | 126° |
The 7 cm kink at E was the missing piece. With two corners there rather than one the room has eight sides, whose angles must total 1080° — and your five readings plus three right angles come to 1078°. Every figure you took now has a home.
The useful coincidence
- Your 284 here and the 283 in the main room are the same wall. One centimetre apart, measured from opposite sides on different days. That ties the two surveys together — the spare room sits directly behind the prep run, exactly as you said.
Murphy bed on the old door wall
- Bed goes on the 178 wall, in place of the existing door, folding down 210 into the room and leaving 139 cm clear to the shared kitchen wall. Entry from the new door in the 144 stays clear with the bed down.
- The tight bit is the wall length, not the floor. A standard double housing is around 165 wide and that wall is 178 — roughly 13 cm of slack in total, so 6 or 7 each side. That is buildable but leaves no room for a return, a skirting detail or an out-of-square wall.
- Two things would ease it: a 135 mattress rather than a 150, or letting the housing run into the angled corner at G, which is dead space anyway.
- Worth measuring that wall properly before ordering. Everything here is fitted to ±2.4 cm, and 13 cm of slack does not survive much error.
- Blocking up the 92 opening is what buys the wall, so that decision and the bed are the same decision.
Still needed
- Ceiling height in this room still unmeasured. The main space came back at 2480 with 2200 under the kitchen bulkheads. At 2480 the bed clears easily with room for a shelf over; at 2200 it is marginal. Worth a tape before the joinery is drawn.
- Window width. Position confirmed — top wall, right-hand end, past the foot of the bed. Drawn 100 wide as a placeholder; the actual width still needs measuring, along with the cill height.
- Ceiling height — murphy beds need roughly 210 of clear height plus the housing.
- Where along the 144 wall the new door sits, and its width. Drawn 85 wide, hard against the shared-wall corner.
- A proper tape measure on the 178 wall before any murphy bed is ordered — 13 cm of slack is inside the survey’s own error.
Your survey, marked up
The room
Window end, bed head in the corner.
Window with the bed alongside.
Existing door, with the angled wall beside it.
Wardrobe against the angled corner.
The walk from the kitchen
Leaving the main room — blue tape marking the new door line.
Doors at the far end of the hall.