Drywall Calculator
Sheets, tape, joint compound and screws.
CONCRETE
Concrete Pre-Mix (Bagged)
Bagged sand-gravel-cement mix; add water. For pads, footings and small slabs where ready-mix trucks aren’t practical.
Typical coverage
0.6 ft³ per 80 lb bag
60 lb → 0.45 ft³ · 40 lb → 0.30 ft³
Sold as
Bags
40 / 60 / 80 lb
Field-tested tips
- Cure moist for 7 days minimum
- One person, one wheelbarrow: ~30 bags is a full day
- Ready-mix becomes cost-effective above ~1 yd³