Concrete Slab Cost & Volume Estimator
Comprehensive estimator for concrete slabs: ready-mix yards, sub-base gravel, rebar grid, edge forms, and material cost.
Input Parameters
Enter dimensions and specifications to estimate materials.
Ready-Mix Concrete Needed
Sub-Base Gravel
10.9tons
Rebar (#4 20ft sticks)
45sticks
Perimeter Form Lumber
96linear ft
Estimated Concrete Cost
$1133.9
Material estimates include recommended trade waste buffer. Always confirm dimensions on site prior to ordering.
How The Calculation Works
Formulas, material coverage assumptions, waste buffers, and rounding standards.
Computes ready-mix concrete yardage plus 10% subgrade variance allowance.
Estimates crushed stone sub-base volume compacted at 1.4 tons per cubic yard.
Calculates 20ft rebar sticks based on an 18" on-center reinforcement grid.
You May Also Need
Common complementary tools used alongside this calculator for complete project estimation.
Concrete Volume & Bag Calculator
Calculate concrete volume in cubic yards, cubic meters, ready-mix truckloads, and 40lb/60lb/80lb bags for slabs and footings.
Paver & Patio Base Calculator
Calculate patio paver counts (12x12, 6x9, 4x8), 1-inch bedding sand volume, crushed stone base, and edge restraints.
Retaining Wall Block Calculator
Calculate retaining wall blocks (4x12, 6x16, 8x18), buried base courses, cap blocks, and drainage gravel backfill.
Brick & Mortar Wall Calculator
Calculate standard and modular brick quantities, pre-mixed mortar bags, and masonry sand for single or double wythe walls.
Rebar & Mesh Reinforcement Calculator
Calculate 20ft rebar sticks, grid intersections, tie wire pounds, and support chairs for concrete slab reinforcement.
Tile Calculator
Calculate square footage, exact tile counts, waste buffers, and box quantities for straight, diagonal, or herringbone layouts.
Frequently Asked Questions
Practical installation guidance and purchasing tips for concrete slab cost & volume estimator.