concrete
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🧱 CONCRETE CALCULATOR
V3 PRO: VOLUME, REBAR, GRAVEL BASE & LABOR COST
🛠️ REBAR VS WIRE MESH
Rebar (laid in a 16" or 12" grid) provides high structural strength for heavy loads like driveways. Wire Mesh is cheaper and prevents surface cracking, perfect for patios and walkways.
🪨 GRAVEL SUB-BASE IMPORTANCE
Pouring concrete directly on dirt leads to cracking as the ground freezes or settles. A 4-inch gravel base ensures proper drainage and a solid foundation for your slab.

