Calculator

Slab length (ft)

Slab width (ft)

Mesh sheet length (ft)

Mesh sheet width (ft)

Overlap (%)

Price per sheet ($)

Sheets Needed

Slab Area (sq ft)

Estimated Material Cost

Default sheet size (5 ft x 10 ft) matches common retail welded wire mesh — change it to match rolls or sheets sold locally. Overlap accounts for lapping adjoining sheets by roughly one mesh square, standard practice for tying sheets together.

Enter the slab's dimensions and mesh sheet size to calculate how many sheets you need.

Welded wire mesh comes in flat sheets, sold by the sheet rather than by the square foot, which means the real question isn't "how much area" but "how many sheets" — and sheets don't tile perfectly without a little overlap.

How to Use the Concrete Reinforcing Mesh Calculator

Enter the slab's length and width, then the mesh sheet's own dimensions — 5 ft x 10 ft is a common retail size, but change it to match what's actually sold locally. Overlap percentage pads the area before the sheet count is calculated.

adjusted area = slab length × slab width × (1 + overlap %)
sheets needed = ⌈adjusted area ÷ (sheet length × sheet width)⌉

Overlap exists because adjoining mesh sheets need to be tied together, not butted edge to edge — standard practice laps them by roughly one mesh square so the reinforcement stays continuous across the seam. A 10% overlap allowance is a reasonable default for typical 6x6 in. mesh spacing; tighten or loosen it if your sheets use a different grid.