Retaining Wall Calculator
Estimate blocks, backfill, and drainage materials for building a retaining wall.
How to Use the Retaining Wall Calculator
- 1
Enter wall dimensions
Input the length and height of the retaining wall.
- 2
Select block size
Choose your retaining wall block dimensions.
- 3
View materials
See blocks, cap stones, base material, backfill, and drainage supplies needed.
💡 Tips & Tricks
- •Step the first course into the ground (bury at least one course) for stability.
- •Set each row back slightly (setback) for a gravity wall that leans into the hillside.
- •Compact base material thoroughly — an unstable base leads to wall failure.
Frequently Asked Questions
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