Baluster Calculator
Calculate the number of balusters needed for deck railings, stair railings, and fences. Ensure proper spacing to meet building codes.
Railing Details
12 ft
1 ft50 ft
ft
1.5 in
0.75 in4 in
4 in
3 in6 in
Building code typically requires 4" max spacing
in
$
Balusters Needed
25
(28 with 10% extra)
Meets Building Code
Actual spacing: 3.83" (Max allowed: 4")
📏Actual Spacing
3.83"
↔️Center to Center
5.33"
📐Available Space
137.0"
💰Total Cost
$125.00
Installation Tips:
- - Start layout from center for symmetrical appearance
- - Mark all positions before installing
- - Use a spacer jig for consistent spacing
Building Code Requirements
Residential (IRC)
4" sphere cannot pass through balusters
Commercial (IBC)
4" sphere rule also applies