Retaining Wall Block Calculator
Calculate the number of retaining wall blocks, cap units, backfill, and geogrid for a segmental retaining wall.
Inputs
ft
ft
in
in
in
Results
Total Blocks
360 blocks
Blocks Per Row30 blocks
Total Courses12 rows
Cap Units30 caps
Backfill Gravel10.67 cu yd
Geogrid Area0 sq ft
How to Use This Calculator
- Enter the wall length and finished height in feet.
- Set the block height and length in inches from the manufacturer spec sheet.
- Input the required setback (batter) per course.
- Review the block count per course, total courses, and estimated base depth.
- Walls over 4 feet in height typically require an engineered design and permit.
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