Concrete Slab Calculator
Calculate concrete volume, reinforcement materials, forms, and cost estimates for concrete slab projects.
Slab Dimensions
Concrete Required
4.94 cu yd
5.43 cu yd with 10% waste
Slab Area
400.0 sq ft
80lb Bags
223
Reinforcement
9 sheets of wire mesh (5x10 ft)
Forms & Materials
Form Boards (8ft 2x4s)10
Stakes40
Gravel Base (4")4.94 cu yd
Vapor Barrier440 sq ft
Control Joints80 linear ft
Estimated Cost
$3285.74
Materials + Labor
Slab Thickness Guide
4 inches
Patios, sidewalks, light foot traffic
5-6 inches
Driveways, garage floors, workshops
6-8 inches
Heavy equipment, commercial floors
8+ inches
Foundations, industrial applications