The instrument drawer
Fifteen small calculators that answer one furnishing question each — free, no sign-up, and every one of them shows its arithmetic and names the source. The same research-verified figures Poché draws on your floor plan.
Width and length in, square footage out — plus the living-room layout, the largest bed and the biggest dining table our own published tables say the room takes.
The clear gap between two pieces, judged against 36″ primary, the 30″ floor and the 24–30″ secondary band — and told apart from a pairing, which is not a route at all.
Room size and the sofa, table or bed in it — returns the standard rug size from 3 × 5 to 9 × 12, the reveal it leaves, and the rule that picked it.
Wall run in, sofa width band out — with the end tables and the walkway subtracted, and the standard sizes that land in it named.
L and U sectionals against a room corner: which orientation fits, the clear strip it leaves on each wall, and whether that strip is a walkway.
Honest seat counts from the 24-inch-per-diner rule, plus the room size the table needs once every chair pulls back 36 inches.
Table in, room out — or room in, table out. The 36″ pull-back on every side, the 42–48″ walk-behind, and the sideboard that costs less than it looks.
Room width minus the counter runs minus two NKBA aisles is what is left for the slab. Says which island fits — or what the aisles would be if you forced one in.
Room size and bed size in — the real walk-around clearances with the frame counted, the dresser wall checked, and the largest bed the room wants.
Headboard wall minus the bed, split two ways: the widest nightstand that fits each side, what the pair costs in total, and why flush against the bed is correct.
Desk depth plus the chair's roll-back is the number nobody budgets for. The zone it commits, the wall run with a file beside it, and whether anyone can walk behind.
Screen size in, seating distance out — or the reverse. THX immersion, the ITU acuity floor, real panel widths, and the mounting-height angle.
Screen size and your own seated eye height in — mounting height, bottom and top edges, and the actual angle to the top edge against the 15° in CEB23-B.
Opening width and wall height in — usable rod, the double-hang verdict, the drop each garment needs, and what the doors quietly cost you.
Depth, height, doorway — one honest verdict: clears flat, tilt territory, or not without disassembly.
Every one of the fifteen runs on the same figures as the field guides and the app's own furniture library — researched against Architectural Graphic Standards, Time-Saver Standards, NKBA, the IRC and the ADA, with each number tiered as code, standard or convention. Where a figure is a styling convention rather than a published standard, the tool says so on screen rather than dressing it up. Where nobody publishes a number at all — hanger spacing, how high a TV goes above a fireplace — it says that too.
That is the whole house rule: assert the geometry, label the judgement. A calculator that returns a confident wrong number is worse than no calculator, because you cannot tell which one you got.
The library these run on is published as an open dataset — every footprint with its clearances, CSV and JSON, CC BY 4.0: getpoche.com/data. And the door calculator can be pasted into your own page: see the embed code.
These tools answer a question at a time. The app answers all of them at once — upload the floor plan you already have, set the scale in seconds, and place real furniture at true scale with the clearances drawn.
Open the app →