How to use this calculator
Measure the sofa across its fixed arms, highest back and deepest point. Enter the clear doorway opening with the door fully open. Keep upright enabled unless the sofa can safely be placed on another side.
Formula and assumptions
Minimum of all tested clearances
Subtract the item dimension and twice the allowance from each matching opening or interior dimension. An orientation clears only when every remainder is zero or positive. Choose the orientation with the largest minimum remainder.
A door-only result checks a cross section, not the travel length. Interior tools also check item depth. For a door plus interior, the same orientation must satisfy every dimension.
Worked example
A 210 × 85 × 90 cm sofa and a 95 × 205 cm doorway, with 1 cm per edge, clear side first. The 90 × 85 cm cross section leaves 3 cm extra width and 118 cm extra height; travel length is 210 cm.
Before you move
Loose cushions and removable feet may change the bounding box. Only remove parts permitted by the manufacturer. A low back or curved arm can behave differently from the solid box assumed here.
A fit estimate is not a route simulation. It does not account for corners, stairs, lifting room, weight limits or diagonal maneuvers.
Frequently asked questions
Can I squeeze it through diagonally?
This tool only tests axis-aligned straight positions. A failed check does not prove a diagonal maneuver is impossible. Ask your mover to assess the actual item and route.
What does clearance per edge mean?
A 1 cm allowance removes 2 cm from each opening dimension: one allowance at each edge. The displayed remainder is extra space after that allowance.
Are these dimensions product specifications?
No. Default dimensions are illustrative examples. Measure the actual item, including fixed handles, feet and packaging.
Rectangular straight-pass estimates only. Check the entire route and confirm difficult moves with a professional.