Browse ready-made footing size pages for common rectangular and round footings. Compare volume, ready-mix totals, and bag estimates, then use the calculator only when your footing dimensions or count need custom changes.
Open the calculator when you need to change footing count, custom dimensions, or waste assumptions beyond the ready-made size pages.
Footing Calculator → All Project Pages → Guides Hub →Use this hub to browse common footing sizes, compare concrete volume quickly, and open ready-made pages that estimate cubic feet, cubic yards, and bag counts for each footing. It is built for fast planning when you want a size-based estimate without starting from scratch.
If you already know the footing dimensions, open the closest matching size page. If you need to adjust dimensions, footing count, or waste allowance, move to the footing calculator for a custom estimate.
Select a common footing size to filter pages instantly.
Exact material takeoff for a 16" x 16" x 24" square footing: 3.5556 cu ft (0.1317 yd³) per footing, planning volumes with 10% waste, and recommended bag counts.
How much concrete a 16" x 16" x 36" footing needs: exact volume in cubic feet and yards, waste-adjusted planning volumes, and recommended bag counts for 40‑, 60‑, and 80‑lb mixes.
Quickly find how much concrete a 16" × 16" × 48" footing uses, the cubic feet and yards, plus how many 40-, 60-, or 80-lb bags you'll need with a standard 10% waste allowance.
Exact volumes and planning estimates for a 16" × 20" × 24" footing: 4.4444 cu ft (0.1646 yd³) exact, with waste-adjusted planning values and bag counts included.
Quantities for a 16" × 20" × 36" rectangular footing: exact volume 6.6667 cu ft (0.2469 yd³), waste-adjusted planning totals (7.3334 cu ft / 0.2716 yd³), and suggested bag counts.
Exact volumes and bag quantities for a 16" x 20" x 48" footing, plus waste-adjusted planning totals and practical tips for using bagged concrete on small projects.
This page shows exactly how much concrete a 16" x 24" x 24" footing needs: 5.3333 cu ft (0.1975 yd³) plus a 10% waste plan and recommended bag counts for ordering.
Find exact concrete volume (8 cu ft, 0.2963 yd³), waste-adjusted totals, and recommended bag counts for a 16×24×36 footing. Practical guidance for single posts and small column footings.
Exact volume and planning totals for a 16" x 24" x 48" rectangular footing. Includes cubic feet, cubic yards, and bag counts adjusted for 10% waste for 40-, 60-, and 80-lb bags.
Exact and planning quantities for a 20" round Sonotube footing 24" deep: volume in cu ft and yd3, exact bag counts, and waste-adjusted planning counts for ordering.
Exact and planning volumes (10% waste) plus bag counts for a 20" diameter × 36" deep round footing. Includes single‑footing numbers and an example total for multiple footings.
Exact volumes and planning bag counts for a single 20" x 20" x 24" concrete footing. Includes cubic feet, cubic yards, and waste-adjusted totals for 40-, 60-, and 80-pound bags.
Get the exact quantities for a 20" × 20" × 36" footing: 8.3333 cu ft (0.3086 yd³), 10% waste planning, and recommended bag counts for a small poured footing.
Exact volumes and planning bag counts for a 20" × 20" × 48" footing. See cubic feet, cubic yards, and suggested 40/60/80-lb bag totals with waste included.
Exact and planning quantities for a 20" x 24" x 24" footing: 6.6667 cu ft (0.2469 yd³) exact, 7.3334 cu ft (0.2716 yd³) with 10% waste, plus bag counts.
Get exact volume and planning quantities for a 20" × 24" × 36" rectangular footing: 10 cu ft (0.3704 yd³) and recommended bag counts with 10% waste included.
Find cubic feet, cubic yards, and recommended bag counts (40-, 60-, 80-lb) for a 20" x 24" x 48" footing. Includes a 10% waste allowance and practical excavation considerations.
Exact and planning quantities for a 22-inch diameter by 24-inch deep round footing: 5.2796 cu ft (0.1955 yd³), exact bag counts, and 10% waste-adjusted ordering numbers.
Exact and planning quantities for a 22" round footing 36" deep: 7.9194 cu ft (0.2933 yd³), exact bag counts, and waste-adjusted totals for ordering materials.
Exact volume, cubic yards, and bag counts for a 22-inch round footing poured 48 inches deep, with a 10% planning allowance and quick planning notes for single or multiple pours.
Get the precise concrete volume and bag plan for a 22" x 22" x 24" footing. Includes cubic feet, cubic yards, waste-adjusted planning volumes, and recommended bag counts for 40-, 60-, and 80-lb bags.
Get exact material numbers for a 22" x 22" x 48" (48" deep) square footing: 13.4444 cu ft (0.4979 yd³) plus waste-adjusted bags and practical tips for excavation and reinforcement.
Exact material numbers for a 24" diameter by 24" deep round Sonotube footing: 6.2832 cu ft (0.2327 cu yd) and bag planning with a 10% waste allowance included.
Quick planning numbers for a 24" round Sonotube footing 36" deep: exact volume, waste-adjusted volume, and bag counts for 40/60/80 lb mixes.
A footing page gives you a ready-made estimate for a common footing size, while the footing calculator is better when you need to change dimensions, footing count, or waste assumptions.
No. They are planning estimates. Final material needs can change with excavation shape, overdig, soil conditions, and the actual bag yield printed on the concrete mix you buy.
Bagged concrete often makes sense for one or a few smaller footings. As the number of footings and total volume rise, ready-mix may become more practical for labor, consistency, and total time.
The pages are designed for planning. You should still review the final total and add a sensible waste allowance based on excavation variation, spillage, and site conditions before ordering concrete.
Yes. They are useful as quick planning pages for common residential footing sizes, but final footing dimensions and depth still need to match the structural load, soil conditions, frost depth, and local code.
