Transition Strip Calculator

Calculate how many transition strips you need to cover doorways between two different flooring types.

tilewood
Strips Needed
— strips
Rounded up.

Usage Tip

Buy one extra strip for miscuts, and match the strip profile to the height difference between the two floors.

THE MATH
linear feet = doorways × (width ÷ 12)
strips = round up( doorways ÷ (strip length ÷ width) )
Transition strips bridge the gap where two different floors meet in a doorway, such as tile to wood.
One strip is cut to fit each doorway, so longer stock can serve more than one opening.
Enter how many doorways need a strip and the typical doorway width, then pick the stock length you will buy.
The result rounds up to whole strips.
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The calculators and tools on Formula Factory are provided for general guidance and informational purposes only. Results are estimates based on standard formulas and the values you enter — they do not constitute professional engineering, electrical, or architectural advice. Always verify calculations with a qualified professional before making decisions for any safety-critical, code-compliance, or commercial application. Formula Factory makes no representations or warranties as to the accuracy or completeness of any result, and accepts no liability for errors, omissions, or any outcomes arising from reliance on this information.