Before you buy
Practical measuring tips
- Do not include buried-course decisions without checking the block system instructions.
- Walls may require drainage, reinforcement, engineering, or permits.
- Use manufacturer coverage data for tapered or interlocking blocks.
Formula
What the result includes
Rows and blocks per row are rounded up; base gravel comes from trench dimensions.
Whole-item results such as bags, rolls, blocks, and pallets are rounded up. Decimal volume or weight results remain estimates so you can compare bulk options.