Deck Railing Calculator
Calculate deck railing materials, posts, balusters, and railings needed for your deck. Estimate costs and materials for wood, composite, or metal railings.
Step 1: Deck Dimensions
Standard Railing Requirements
Most building codes require deck railings to be 36-42 inches high. Baluster spacing should not exceed 4 inches to prevent child entrapment.
Step 2: Materials & Cost
Material Estimates
Posts: 1 per specified spacing. Balusters: Based on spacing and railing length. Top/bottom rails: Length of deck perimeter.
Deck Railing Materials Estimate
Summary
Materials List
Cost Breakdown
Total Estimated Cost
$485.00
64 ft of railing required
Posts Required
12 posts
Balusters
192 balusters
Railing Length
64 feet
Fasteners
3 lbs
Complete Materials List
| Material | Quantity | Unit Price | Total Cost | Notes |
|---|
Cost Breakdown by Material
Railing Calculation Formula
Posts = Perimeter ÷ Post Spacing (rounded up)
Calculate deck perimeter, divide by post spacing, then add corners. Balusters = (Perimeter ÷ Baluster Spacing) × 2 (for top and bottom rails).
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