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Stair Carpet Calculator

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Calculates the carpet dimensions and cost needed for a staircase based on stair measurements and carpet price.

How To Use

How to use this calculator

Start with your values, or try a preset.

Step 1

Enter Step Width (inches), Step Depth (inches), Riser Height (inches), Number of Steps, and Carpet Price per Square Foot ($) in the units shown.

Step 2

Read Area per Step (Square Inches), Total Carpet Area (Square Inches), Total Carpet Area (Square Feet), and Estimated Total Cost ($) in the results panel. Results update as you change the inputs.

Step 3

Choose a preset to load an example, then adjust the values for your situation.

Worked Examples

Example calculations

See the inputs and their calculated results.

Small Staircase

Step Width (inches): 30; Step Depth (inches): 10; Riser Height (inches): 6; Number of Steps: 8; Carpet Price per Square Foot ($): 3

Area per Step (Square Inches): 480; Total Carpet Area (Square Inches): 3,840; Total Carpet Area (Square Feet): 26.66666667 sq ft; Estimated Total Cost ($): 80 $

Standard Staircase

Step Width (inches): 36; Step Depth (inches): 11; Riser Height (inches): 7; Number of Steps: 13; Carpet Price per Square Foot ($): 4

Area per Step (Square Inches): 648; Total Carpet Area (Square Inches): 8,424; Total Carpet Area (Square Feet): 58.5 sq ft; Estimated Total Cost ($): 234 $

Large Staircase, Expensive Carpet

Step Width (inches): 48; Step Depth (inches): 12; Riser Height (inches): 7.5; Number of Steps: 15; Carpet Price per Square Foot ($): 6

Area per Step (Square Inches): 936; Total Carpet Area (Square Inches): 14,040; Total Carpet Area (Square Feet): 97.5 sq ft; Estimated Total Cost ($): 585 $

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