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eng.concrete-slab-cost Calculator
Estimates concrete slab construction cost from area, thickness, unit cost of concrete, and labour rates. Concrete slab costs vary from $4–8/sf for basic flatwork to $15–30/sf for post-tensioned or reinforced elevated slabs — this provides a rapid budgeting tool.
Inputs
Length M
Linear measurement. Ensure consistent units: 1 m = 1,000 mm = 3.281 ft.
Width M
Horizontal extent perpendicular to the length.
Thickness Mm
Perpendicular measurement through the material. For insulation: thicker is better. For beams: directly affects bending resistance.
Concrete Cost Per M3
Reference formula or conversion factor shown for context.
Labor Cost Per M2
Reference formula or conversion factor shown for context.
Results
total estimated cost ($)
The combined total across all inputs and components.
slab area (m²)
The computed two-dimensional surface area.
concrete volume (m³)
The computed three-dimensional volume.
concrete cost ($)
The total monetary cost computed for the given inputs.
labor cost ($)
The total monetary cost computed for the given inputs.