What the Furniture Clearance Calculator actually calculates
The clear distance is total span minus both item depths, limited to zero. Ratings use 0.90 m for a comfortable main route and 0.75 m for a workable secondary route. The calculation checks one straight cross-section, not turning space, accessibility compliance, or clearance while furniture is in use.
The calculation path
Object depths are removed from the total available span and the remaining clearance is rated.
Inputs that can change the answer
- Total available span: Enter total available span in m.
- First item depth: Enter first item depth in m.
- Second item depth: Enter second item depth in m.
Checks that stay outside the formula
Measure at the widest points, including handles, arms, and recliner movement.
A practical order for entering the data
- Measure the total span across the intended gap between opposing furniture.
- Enter each piece's projection into that span, including handles or arms at the narrowest point.
- Review the remaining clearance and separately test doors, drawers, and moving furniture positions.
Project walkthrough: Furniture fit: dimensions, clearances, and delivery checks
Project walkthrough: Coordinate a rug, sofa, and coffee table without crowding the room
Project walkthrough: Plan a bedroom from bed size to wardrobes and walkways
Project walkthrough: Size a dining table with chair and circulation clearance
Engine check using the prefilled sample
Worked example: total available span = 3.2 m, first item depth = 0.9 m and second item depth = 0.5 m. Replace the sample dimensions with the real room and furniture sizes, then check doors, drawers and walking paths on a scaled plan.
Results for these inputs
- Clear distance
- 1.80 m
- Clearance assessment
- Comfortable main route
Aim for about 0.9 m on frequently used paths.