Concrete for 8 Post Holes
Setting 8 posts in 10"-wide, 24"-deep holes takes about 17 60-lb bags of concrete (or 13 80-lb bags). Adjust the hole size and post width below.
Concrete bags
17 bags
Posts
810" holes, 24" deep
Concrete per hole
0.92 cu fthole minus the post
60-lb bags
17 bagsor 13 × 80-lb bags
Cost (est.)
$94~$5.50/60-lb bag
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Want the full guide — tools, step-by-step, common mistakes and FAQ? See the Post-Hole Concrete Calculator.