Concrete Overlay Calculator — Estimate Material Cost & Coverage

Concrete Overlay Calculator

Calculate concrete overlay material requirements for your project. Estimate coverage, bags needed, and total cost for resurfacing concrete surfaces.

Step 1: Project Area

Understanding Coverage

Coverage depends on surface area and overlay thickness. Thicker overlays require more material but provide better durability and can cover more imperfections.

Step 2: Material Details

sq ft per bag

About Concrete Overlay

Concrete overlay is a thin layer of polymer-modified concrete applied over existing concrete. It’s used for decorative finishes, surface repairs, and extending concrete life.

Concrete Overlay Calculation Results

Summary
Type Comparison
Cost Breakdown

Total Project Cost

$225.00
Material Required: 5 bags
Bags Needed
5
Cost Per Sq Ft
$1.13/sq ft
Total Weight
250 lbs
Project Size
200 sq ft

Overlay Type Comparison

Overlay Type Thickness Range Coverage per Bag Bags Needed Total Cost

Cost Breakdown by Area

Concrete Overlay Formula

Bags Needed = (Area / Coverage per Bag) × Thickness Factor

The number of bags is calculated by dividing the total area by the coverage per bag, then adjusting for thickness. Different overlay types have different density and coverage characteristics.

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