Garden Wall Block Calculator
Enter your size to get garden wall block quantity, plus an estimated cost. Waste is included and prices are editable.
Material needed
Estimated cost
How to calculate garden wall block
Garden wall blocks at about 1.125 blocks per square foot, with waste.
Formula: quantity = area × 1.125 × (1 + waste %) = 100 × 1.125 × 1.10 = 124 blocks.
Worked example
Example: 10 ft × 10 ft = 100 sq ft. Quantity: 124 blocks, about $372 at $3 per blocks.
Tips
Measure the full area, then subtract large openings if you want an exact count. Order a little extra for cuts and breakage, and confirm quantities with your supplier before you buy.
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Frequently asked questions
How much garden wall block do I need?
Example: 10 ft × 10 ft = 100 sq ft. Quantity: 124 blocks, about $372 at $3 per blocks.
How much waste should I add?
Add 10% for straight areas and 15% for areas with many cuts, corners and openings.
Are the prices accurate?
Prices are editable estimates. The defaults are typical US figures, and your local price can be higher or lower.