Wall size
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Block size (W × H × L)
4 × 8 × 16 in (partition / veneer)
6 × 8 × 16 in
8 × 8 × 16 in (standard)
12 × 8 × 16 in
8 × 4 × 16 in (half-high)
Doors and windows (sq ft)
Fill cores with grout
No grout
Only cores with rebar
All cores (fully grouted)
Vertical rebar spacing
No rebar
16 in
24 in
32 in
48 in
Waste allowance (%)
Include a concrete footing
Prices (edit to match your store)
Per block
Mortar, 80 lb bag
Concrete, 80 lb bag
Ready-mix, per cu yd
#4 rebar, 20 ft
Ladder wire, 10 ft
Concrete block calculator ·
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