Formula and units
N = Σᵢ∈K sᵢ seats
8-seat rounds: N = 8T seats
K is the set of furniture groups kept after placement and checks; sᵢ is the number of seats in each retained group, in seats. T is the number of retained eight-seat round tables. Room width, depth, aisles, wall clearances, reserved front depth and furniture sizes use metres; feet inputs convert at 1 ft = 0.3048 m. These lengths constrain placement, rather than acting as an area-per-person multiplier.
Worked example
The calculator’s default clear room is 12 × 10 m with eight-seat round tables of 1.5 m diameter, 0.45 × 0.45 m chairs, 1 m aisles, 0.9 m wall clearance and 1.5 m front space. No additional front strip is reserved. The checked layout retains T = 6 tables, so N = 8 × 6 = 48 seats, with 0 reported issues. It assumes one 1.2 m door at the rear centre and a 0.9 m minimum-clearance check.
Assumptions and limits
- The layout engine places furniture within the available rectangle, keeping off walls, columns, other parts and door clearance areas. It checks overlaps, passages and blocked doors, removes implicated groups, and rechecks. Seat counts come from the groups that remain, not the initial candidate count.
- The tool uses clear internal dimensions and reserves any requested full-width front strip before arranging furniture. Inter-table aisles and wall clearance are separate inputs. Its clearance check uses the smaller of 0.9 m and the requested aisle width; these are model settings, not universal code minima.
- This is one arrangement, not proof of the greatest possible seat count. The tool limits room sides to 2–50 m and generated furniture to 600 parts; limits and skipped checks are reported. It does not establish exit capacity, wheelchair provision, staff occupancy, evacuation performance or a legal occupant load. Confirm the actual venue, doors and local requirements.