Retaining Wall Block Calculator

How many retaining wall blocks do I need?

ft
rows
in
blocks
lb

Order this much retaining wall block

158blocks

Includes 5% extra for cuts and breakage.

5 rows × 30 blocks across
Blocks per row30
Pallets2.6
Total weight2.4 tons
Half-ton pickup trips4

Enter your length and rows to see blocks, pallets and total weight, which is what really decides your delivery.

How it works

Length ÷ block length gives blocks per row. Multiply by rows and add 5%, then convert to pallets and tons.

Before you order

  • Check your driveway can carry a loaded pallet delivery.
  • Stagger vertical joints from one row to the next.
  • Hollow-core and solid blocks can differ a lot in weight.

Common questions

How many blocks are on a pallet?

It depends on the block. Check the supplier listing and enter the figure above.

How much do retaining wall blocks weigh?

Small garden blocks are often around 20 to 30 pounds, and larger units can be far heavier.