Concrete Bag Calculator

Bag Size Guide

• 40 lb bags: Best for small repairs, fence posts
• 60 lb bags: Good balance of weight and coverage
• 80 lb bags: Most popular, good for walkways
• 90 lb bags: Maximum yield, fewer bags to handle

When to Use Bags vs Ready-Mix

• Use bags for: Projects under 2 cubic yards
• Use bags for: Remote locations, small repairs
• Use ready-mix for: Projects over 2 cubic yards
• Use ready-mix for: Large slabs, driveways

Mixing Instructions

1. Add about 3/4 of the water to mixer
2. Add the dry mix
3. Mix for 2-3 minutes
4. Add remaining water gradually
5. Mix until uniform consistency
6. Use within 30 minutes

Pro Tips

• Buy 10% extra bags for waste and mistakes
• Store bags in dry location off ground
• Don't add too much water - weakens concrete
• Work in temperatures between 50-80°F
• Have all tools ready before mixing