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Skirting Board Calculator

Estimate skirting length from room dimensions, excluded door openings and cutting/waste allowance.

✓ Method reviewed · 2026-08-22
CALCULATORHow many meters of skirting board does a room need?

Results are for information and preliminary estimation. For critical technical work, manufacturer data, local codes and qualified professional review take precedence.

CALCULATION ENGINESKIRTING · R1.5.1Engine and route QA: PASS · Method and limits visible
Trust & methodology →
1Enter real inputs
2Press Calculate
3Read result with assumptions
Method & assumptions

How is it calculated?

Net perimeter = 2 × (length + width) − openings. Purchase length = net perimeter × (1 + waste).

Example

Example: A 5 × 4 m room has an 18 m gross perimeter before openings and waste.

What questions does this tool answer?

  • How many meters of skirting board does a room need?
  • How is Skirting Board calculated?
  • What inputs are needed for Skirting Board?
WHAT CHANGES THE RESULT

Check these before using the estimate

Renovation estimates are most sensitive to measurements, product coverage and waste allowance. Before ordering, verify the result against the actual m²/L, m²/pack or unit coverage printed on the product.

  • Using net dimensions rather than mixing gross and net area
  • Waste from cuts, breakage and pattern alignment
  • Actual coverage stated on the product pack or datasheet
  • Surface condition, installation method and site tolerances
FAQ

Frequently asked questions

Should door widths be subtracted?+

Yes, where skirting will not run across the opening.

Why add waste?+

Corners, joins and damaged lengths can increase purchase quantity.