⚙️ Project Type
📐 Slab Dimensions
📏 Standard residential slab thickness: 4 inches. Driveways: 4–6 inches. Garage floors: 4 inches minimum. Sidewalks: 4 inches. Heavy equipment pads: 6+ inches.
⚙️ Bag Options
Bags to Buy
—× 80 lb bags
Cubic Feet
—
Cubic Yards
—
Est. Bag Cost
—
Ready-Mix Cost*
—
*if available in your area
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Frequently Asked Questions
How many bags of concrete do I need?
An 80-pound bag covers approximately 0.6 cubic feet. A 10x10 foot slab at 4 inches thick requires about 50 bags of 80-pound mix.
What thickness should a concrete slab be?
Walkways: 3-4 inches. Driveways and garage floors: 4-6 inches. Patios: 4 inches. Vehicle-bearing slabs should be reinforced with rebar.
How long does concrete take to cure?
Concrete reaches 70% strength in 7 days and full strength at 28 days. Safe to walk on after 24-48 hours, safe for vehicles after 7 days.