Introduction
Footings are the cheapest concrete in a foundation — but they’re also the easiest line item to misprice, because the cost isn’t just concrete. Excavation, forming, rebar, delivery minimums, permits, and the frost-depth trench all land on the same bill, and on small runs the fixed costs (mobilization, short-load fees, permit) can outweigh the material. A realistic footing budget prices each piece separately instead of guessing a per-foot number.
The Foundation Footing Calculator gives you the quantities to price — footing width, concrete volume, and rebar length — from your wall load and soil bearing capacity. This guide turns those quantities into dollars: what each cost component typically runs, a full worked budget for a 60-foot footing run, and where DIY actually saves money versus where it doesn’t. All figures are typical US planning ranges; labor rates, concrete prices, and permit fees vary widely by region, so treat them as budgeting brackets and confirm with local quotes.
What Drives Footing Cost
Six components make up nearly every footing bill. Their relative weight shifts with job size: on a 200-foot production run, concrete dominates; on a 40-foot garage footing, mobilization and delivery minimums dominate.
- Excavation — digging the trench to frost depth, on undisturbed soil. Machine digging in easy soil is cheap; rock, hand-digging, or deep frost lines are not.
- Concrete — the volume from the calculator, priced per cubic yard (ready-mix) or per bag (DIY).
- Reinforcement — longitudinal bars plus chairs/supports; usually the smallest line item.
- Forming and labor — setting forms (or neatly trimming an earth-formed trench), placing steel, pouring, and finishing.
- Delivery and access — short-load fees, pump charges if the truck can’t reach, remote-area surcharges.
- Permits and engineering — the building permit, plus a soils report or engineered design where the code requires one.
Typical Cost Ranges
Planning brackets for US residential work (confirm locally — these move with market and region):
| Component | Typical range | Notes |
|---|---|---|
| Contractor-installed strip footing (per linear foot) | $8–$20 | ~20 in wide × 10 in thick; deep frost or high-cost markets $15–$30 |
| DIY materials (per linear foot) | $3–$7 | Excludes your labor and equipment rental |
| Ready-mix concrete (per yd³) | $120–$180 | Plus short-load fee $50–$150 under ~3 yd³ |
| Machine excavation, easy soil (per linear foot) | $3–$6 | Rock, hand-digging, or deep trenches: $8–$15+ |
| #4 rebar (per lineal foot, retail) | $0.60–$0.90 | Two bars per footing is typical |
| Building permit | $50–$500 | Varies enormously by jurisdiction |
| Soils report (where required) | $500–$2,000 | One-time; governs the bearing value in the calculator |
Two pricing traps: small-job minimums (many concrete contractors won’t mobilize under $1,000–$2,500, which blows up the per-foot math on short runs) and short-load fees (ordering 2 yards of ready-mix can cost nearly as much as 4 once the fee is added). Both argue for batching footing work with the rest of the foundation pour where possible.
Worked Budget: 60-Foot Footing Run
Take the complete guide’s example footing — a 60-foot run, 20 inches wide, 12 inches thick (3.56 yd³ of concrete, 120 feet of #4 rebar) — and price it as a DIY project with rented equipment:
Step 1 — Excavation. Mini-excavator half-day rental: $200. (Hand-digging saves the rental and costs a weekend; rocky soil can double machine time.)
Step 2 — Concrete. Order 4 yd³ (rounding the 3.56 yd³ up with waste) at $150/yd³ = $600, plus a $75 short-load fee: $675. Cross-check the volume in metric: 3.56 yd³ × 0.7646 = 2.72 m³ — the same figure the metric takeoff gives (18.288 m × 0.488 m × 0.3048 m), so the order quantity is verified in both systems.
Step 3 — Rebar. 120 ft of #4 at $0.75/ft: $90, plus chairs and tie wire.
Step 4 — Forms and consumables. Form boards, stakes, string line, screed: $100.
Step 5 — Permit. Typical residential footing/addition permit: $150.
Total: ≈ $1,215, or about $20 per linear foot — all-in DIY with rented equipment, before your labor.
The same run from a contractor typically quotes $1,500–$2,400, because small-job minimums dominate at this scale. The per-foot economics flip on larger runs: at 200+ linear feet, contractor pricing converges toward the $8–$15/lf bracket while DIY material costs stay roughly linear. This is why the DIY vs pro guide treats job size as the deciding variable, and why the estimating guide builds the quantity takeoff this budget depends on.
Where the Money Leaks
- Over-excavation. A trench dug 6 inches too wide along 60 feet adds roughly 1.7 yd³ of concrete you didn’t plan for — about $250 at ready-mix prices. Measure the actual trench before ordering.
- Re-mobilization. Failing an inspection (steel placement, depth, soil) means the crew comes back — often a half-day charge. The material guide’s cover and placement notes exist to prevent exactly this.
- Bag-mixing at truck scale. At 96 ft³ (the worked example), bag concrete costs roughly double ready-mix per yard before counting your labor. Bags win under ~1 yd³; trucks win above ~2 yd³.
- Ignoring access. If the mixer can’t reach the trench, a pump or buggy crew adds $500–$1,500. Walk the access route before bid day.
- No contingency. Carry 10–15% on footing budgets. Unknown soil conditions are the classic surprise — a soft pocket that needs over-excavation and engineered fill can add hundreds in a morning.
Related Guides
- Formula Explained — the width, volume, and conversion math behind the quantities you’re pricing.
- Foundation Footing Calculator FAQ — quick answers to the most asked footing questions.
- Footing Checklist — the pre-pour verification routine that prevents expensive rework.
- Pro Tips — layout, forming, and pour-day advice that protects the budget.
- Case Study — a hypothetical garage-addition footing, budgeted end to end.
- Common Mistakes — the errors that silently inflate (or invalidate) footing costs.
Frequently Asked Questions
How much does a concrete footing cost per linear foot?
Contractor-installed strip footings typically run $8–$20 per linear foot for standard residential sizes in moderate markets; deep frost lines or high-cost regions push $15–$30. DIY materials run $3–$7/lf before labor and equipment. Small jobs pay more per foot because of contractor minimums and short-load fees.
How many cubic yards of concrete are in a typical house footing?
A 60-foot run of 20-inch-wide, 12-inch-thick footing holds about 3.6 yd³. A full perimeter footing for a modest house (150–200 linear feet) is typically 8–15 yd³ — a partial to full ready-mix load.
Is it cheaper to mix footing concrete by hand?
Below about 1 cubic yard, bags are usually cheaper once delivery minimums are counted. Above ~2 yd³, ready-mix wins decisively — a 3.5-yd³ footing needs roughly 160 eighty-pound bags, costing about double the ready-mix price before your labor.
What does footing excavation cost?
Machine excavation in easy soil typically adds $3–$6 per linear foot. Rock, hand-digging in tight access, or trenches deeper than 3–4 feet can run $8–$15+/lf. Deep frost lines increase this line item directly.
Do I need a permit for footings?
Almost always, when the footing supports a structure — typically $50–$500 depending on jurisdiction. Footings are a standard inspection point (before the pour), so unpermitted work risks a stop-work order and redo.
How much contingency should a footing budget carry?
Ten to fifteen percent. Soil surprises — soft pockets, rock, water — are the classic footing budget-buster, and they’re discovered after the trench is open.
Get Your Number
Price footings from quantities, not guesses: get the width, concrete volume, and rebar length from the Foundation Footing Calculator, apply your local per-yard concrete price and per-foot labor rates, add delivery minimums and the permit, and carry 10–15% contingency. On small runs, compare the DIY materials total honestly against contractor minimums — the cheapest footing is the one poured once, inspected once, and never dug up again.
Disclaimer: Cost figures are typical US planning ranges for budgeting only and vary widely by region, soil conditions, and market. Calculator results are planning estimates. Verify pricing with local suppliers and contractors, and confirm footing design with your local building authority and, where required, a licensed structural engineer.
