Free · Everyday planning calculators

Sofa Entry and Wall Clearance Planner

Estimate maximum dimensions under fixed doorway, lift and wall clearance assumptions.

  • Formula & worked example
  • Private in your browser
  • No signup
Go to tool

Calculator inputs

Loading calculator…

How to use this calculator

  1. Enter the known values in the units shown. Results update as you type.
  2. Where results are editable, change one to solve backwards. Lock a value to hold it fixed.
  3. Use the worked example to check the method. Reset restores the starting fields.

Private by default

Inputs and results stay in this browser tab. Bookify does not upload or store the values you enter.

Formula and method

A 150 cm lift opening gives a 144.92 cm frame-height limit under the two-inch allowance.

Usable dimension = measured dimension − fixed inch clearance

Worked example

Enter these known values and leave the other values blank.

Point of entry
Lift
Wall length
400 cm
Lift height
300 cm
Lift width
150 cm
Lift depth
200 cm
Sofa total depth
194.92 cm
Sofa total width
294.9 cm
Sofa frame height
86.92 cm

Assumptions and limitations

  • Allowances are fixed design heuristics: 2 inches for entry openings, 24 inches for wall spacing, and an additional 12 inches for the narrower wall/lift estimate. The seating bands and rectangular clearances cannot prove that a sofa will turn through a delivery route.

Common questions

What assumptions affect this result?

Allowances are fixed design heuristics: 2 inches for entry openings, 24 inches for wall spacing, and an additional 12 inches for the narrower wall/lift estimate. The seating bands and rectangular clearances cannot prove that a sofa will turn through a delivery route.

Can I solve for a missing value?

Clear the missing field and enter compatible known values in the displayed units. Supported inverse branches remain available; rounding and one-way outputs keep their original direction.

References

Replace captured external illustrations with original accessible explanations of the measurements, allowances and selected order, preserving every variant condition and all controls.

Explore everyday planning calculators or browse all everyday life calculators.