Concrete Wire Mesh Calculator
Estimate welded-wire reinforcement sheets, purchased area, overlap allowance and material cost for rectangular concrete slabs.
Default project preview
15 sheets
Slab area
600 ft²
Area with overlap
672 ft²
Sheet area
50 ft²
Calculated sheets
14
Calculator
Build the material order
Your order will appear here
Enter the project details and calculate a rounded material estimate.
Input and output guide
What each value means
The labels and units below are part of this calculator’s visible methodology. Replace every default with measurements or product data from the actual project.
Slab length
Enter this project assumption in ft. The current imperial default is 30 ft.
Slab width
Enter this project assumption in ft. The current imperial default is 20 ft.
Mesh sheet length
Enter this project assumption in ft. The current imperial default is 10 ft.
Mesh sheet width
Enter this project assumption in ft. The current imperial default is 5 ft.
Overlap and cutting allowance
Enter this project assumption in %. The current imperial default is 12 %. Minimum: 0. Maximum: 50.
Extra sheets
Enter this project assumption in a unitless value. The current imperial default is 1. Minimum: 0.
Price per sheet
Enter this project assumption in a unitless value. The current imperial default is 38. Minimum: 0.
How to read the outputs
Slab area
rectangular plan area. Default preview: 600 ft².
Area with overlap
12% allowance. Default preview: 672 ft².
Sheet area
10 × 5. Default preview: 50 ft².
Calculated sheets
before entered extras. Default preview: 14.
Extra sheets
damage, cuts and layout changes. Default preview: 1.
Material cost
mesh sheets only. Default preview: $570.00.
Methodology
Transparent calculation
BuildMeter converts every input to a consistent internal unit, applies the selected allowance, and rounds products up to whole purchasable units.
Order area = slab length × width × overlap factor. Sheets = round up (order area ÷ sheet area) + extras.
Reviewed project guidance
How to use this estimate in a real project
Last reviewed: July 30, 2026
Estimate welded-wire reinforcement sheets or rolls from slab dimensions, required laps and stock sizes while keeping reinforcement design separate from quantity planning.
Calculation steps
- 1Measure the reinforced slab area by section.
- 2Reduce stock coverage for the specified side and end laps.
- 3Lay out whole sheets or roll widths across each section.
- 4Round upward and add spare material for cuts.
Worked numerical example
A 24 ft × 30 ft slab covers 720 ft². With 6 in laps and 5 ft × 10 ft sheets, the effective sheet coverage is smaller than 50 ft²; the layout requires 16 sheets before adding handling allowance.
Purchasing and rounding
Order by full sheet, roll or bundle and verify wire designation, spacing and corrosion protection.
Interpret the result
The count shows purchasing quantity, not reinforcement capacity or correct placement height.
Page-specific assumptions
- Rectangular slab sections.
- Uniform lap requirement.
- One mesh product and stock size.
Common mistakes
- Dividing area by nominal sheet area without laps.
- Leaving mesh on the subgrade instead of supporting it.
- Substituting mesh size without design approval.
Primary and technical references
BuildMeter provides planning estimates, not engineering, architectural, electrical, mechanical, plumbing, permit or code approval. Review the methodology and verify final decisions with product documentation and qualified professionals.
BuildMeter Guides
Understand the measurements and assumptions
Use these visible reference guides before changing project inputs or planning allowances.
FAQ
Concrete Wire Mesh Calculator questions
Does wire mesh replace reinforcing bars?+
Not automatically. Reinforcement is selected for the slab design, loads and crack-control strategy.
Why add overlap allowance?+
Adjacent sheets usually overlap and edge cuts can reduce usable coverage.
Does this calculate chairs or supports?+
No. Supports depend on the specified reinforcement position and installation method.