Slab Reinforcement Calculator
Calculate rebar requirements for concrete slab reinforcement including bar count, length, and weight.
Slab Parameters
ft
ft
in
in
Total Rebar Required
1,250 ft
Weight: 835 lbs | 52 total bars
Slab Area
600 sq ft
Effective Depth
4.25"
Long Direction
21 bars
Short Direction
31 bars
Below Minimum Reinforcement
Provided: 0.200 sq in/ft | Required: 1.555 sq in/ft
Rebar Summary:
Bar Size#4 (0.5" dia)
Spacing12" o.c. both ways
Total Weight835 lbs
Est. Cost$709.75
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Editorial Note
MyCalcBuddy Editorial Team
This page is maintained as an educational calculator reference.
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Formula Source: Standard Mathematical References
by Various
🔄Last reviewed: May 2026
✓Formula checks are based on standard references and internal QA review.