Stair Tread Calculator
Calculate stair treads, risers, and materials needed for your staircase project. Estimate costs and materials for indoor and outdoor stairs.
Step 1: Stair Dimensions
Standard Stair Dimensions
Standard residential stairs: Tread depth 10-11 inches, riser height 7-8 inches. Building codes often require minimum 10-inch tread depth and maximum 7.75-inch riser height.
Step 2: Materials & Cost
Material Estimates
Risers typically match tread count. Installation materials include adhesive, screws, sandpaper, and finish. Allow for extra material for mistakes and trimming.
Stair Tread Materials Estimate
Total Estimated Cost
Complete Materials List
| Material | Quantity | Unit Price | Total Cost | Notes |
|---|
Cost Breakdown by Material
Stair Tread Calculation Formula
Treads = Number of Stairs × (1 + Waste%)
Calculate total treads needed based on stair count plus waste factor. Risers typically equal tread count. Area = (Tread Depth × Stair Width × Number of Stairs) ÷ 144 for sq ft.
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