How do footing subcontractors usually bill their work?

Most footing subs bill total linear feet of footing times a per-foot labor rate, plus a flat charge for each interior support pad. Some add a per-foot upcharge when rebar is placed. On very small or irregular jobs, a lump-sum price is sometimes used instead, and heavy commercial work is often billed per cubic yard placed.

Should footing subs charge more when rebar is required?

Yes, a rebar upcharge is standard because reinforced footings take extra labor to cut, tie, chair, and position the steel before the pour. A common convention is a modest per-foot bump, for example moving from a base rate to a slightly higher rate on runs that carry rebar. The key is stating the rebar rate up front so it is not a surprise line at invoicing.

What should be included in the billable linear foot total?

Bill the footing runs that are actually in your scope, applying one consistent rule for edge cases. Crews differ on whether wood-frame bearing-wall strips, wing walls, and window well returns count, so pick a rule, write it into the estimate, and apply it every time. Consistency matters more than which choice you make, because it is what keeps your totals defensible.

How do footing subs avoid billing disputes with wall companies and GCs?

Tie every invoice to a measured takeoff from the plan rather than a field guess, and show the segment-by-segment linear-foot breakdown and pad count. When the number on the invoice matches a marked-up plan the GC can see, disputes mostly disappear. Keeping the takeoff, the marked plan, and the invoice together as one record is the single best protection.

How to Bill Footings Per Linear Foot: A Sub Contractor Pricing Guide

Footing subs pour the footings and nothing else. The wall company forms and pours the foundation walls on top, the flatwork crew handles slabs, and the GC ties it together. That narrow scope is exactly why footing billing has its own logic, and why using a slab or foundation pricing model on footing work leads to arguments at month-end.

This is the practical pricing playbook: which billing model to use, how to handle rebar and pads, what belongs in the linear-foot total, and how to invoice so nobody disputes the number.

Which pricing model should a footing sub use?

There are three real models. Each wins in a different situation.

Model	Best for	Why
Per linear foot	Most residential footings	Footings are a linear element; length is what varies job to job
Per cubic yard	Heavy or highly variable-section work	Ties price to actual concrete placed when cross-sections change
Lump sum	Tiny, one-off, or hard-to-measure jobs	Avoids metering overhead when the run is short

For standard residential footings, per linear foot wins because a footing is fundamentally a linear thing. The wall follows a perimeter and some interior lines; what changes from house to house is how long those lines are, not usually the cross-section. Billing by the foot matches how the work actually scales.

Per cubic yard makes sense when cross-sections vary a lot within one job or when the work is heavy and commercial. If half the footings are 16 inches wide and half are 30 inches, a flat per-foot rate under-charges the wide runs, so pricing the placed yardage is fairer to both sides.

Lump sum is for the small stuff: a short addition, a deck footing set, a garage pad, anything where the effort of a formal takeoff outweighs the job. Price it from experience, not per unit.

How much do footing subs charge per linear foot?

Rates are intensely local, so treat any specific number as an illustration, not a benchmark. As one convention among labor-only footing subs in some Ontario markets, the structure looks like this:

$3.00 per linear foot base labor rate
$3.50 per linear foot when rebar is placed
$50 per interior support pad, flat

The important part is not the dollar amounts, which will differ in your market, but the shape: a flat base rate for the run, a small upcharge for reinforced footings, and a separate flat rate for each pad. This is a labor-and-equipment rate, distinct from the all-in installed cost a homeowner pays, which also includes concrete, excavation, and markup. That separation is broken down fully in the footing cost per linear foot guide.

How should rebar upcharges work?

Rebar earns an upcharge because it is real added labor: cutting bar to length, tying laps, setting chairs, and holding position while the pour happens. On residential plans, rebar is frequently decided in the field rather than drawn, so you often will not know until you are on site whether a run is reinforced.

Handle that two ways:

State both rates in the estimate. A base rate and a rebar rate, so the GC already knows what a reinforced run costs before anyone decides to add steel.
Track reinforced footage separately in the field. When rebar goes in, note which segments got it. At invoicing you bill those feet at the rebar rate and the rest at base, with a clear split the GC can verify.

The failure mode is doing the rebar work, then trying to add a charge nobody agreed to. Rates on paper first, tracked footage second, clean invoice third.

What goes into the billable linear-foot total?

This is where most disputes actually start, and it is not really about dollars. It is about which runs count. The gray areas:

Wood-frame bearing-wall strip footings. Interior strips under load-bearing wood walls. Some subs bill them, some treat them as separate.
Wing walls and pilaster returns. Short returns off the main perimeter.
Window well and areaway returns. Small stubs and returns around openings.
Stubs under a set length. Very short runs some crews fold into adjacent segments.

There is no universal right answer, and conventions genuinely vary. What matters is that you pick one rule and apply it to every job. If wood-frame strips are in, they are always in; if wing walls are out, they are always out. A consistent rule is what makes your totals defensible, because the GC can check any run against the same standard. An inconsistent rule, where the same feature is billed on one job and not the next, is what gets your invoices challenged.

Write your rule into the estimate as an inclusions-and-exclusions note. It costs one sentence and removes the single most common argument.

What does a clean month-end invoicing workflow look like?

Footing subs typically invoice on a monthly cycle across several active jobs. A workflow that holds up:

Measure from the plan, not from memory. Every job gets a segment-by-segment takeoff off the drawing, with each run’s length and each pad located.
Mark up the plan. Keep a copy of the drawing with the billed runs highlighted and the pad locations circled. This is your evidence.
Split by rate. Separate base footage, rebar footage, and pad count so each line traces to a rate.
Invoice against the marked plan. The invoice total should reconcile line-for-line with the highlighted takeoff.
Archive the set together. Takeoff, marked plan, and invoice stored as one record per job.

The whole point is that when a GC or wall company questions a number, you do not argue from memory. You show a marked plan whose runs add up to exactly the invoice.

How do you avoid billing disputes entirely?

Disputes come from a mismatch between what the sub remembers pouring and what the GC remembers approving. Measured evidence closes that gap. Three habits do most of the work:

One consistent inclusion rule, written into every estimate, so edge-case runs are never a surprise.
A measured takeoff behind every invoice, so the linear-foot total is a fact from the plan, not a field estimate.
A marked-up plan attached to the bill, so the GC can verify without a site visit.

A measured takeoff is the backbone of all three. Working from a marked plan, whether you produce it by hand or with a tool like FootingTakeoff that generates the linear-foot and pad counts straight from the drawing, means your invoice and your evidence are the same document. You can sanity-check any total against the free linear feet of footing calculator and pad calculator before it goes out.

Bill by the foot, upcharge rebar transparently, flat-rate the pads, apply one inclusion rule forever, and back every invoice with a marked plan. Do that and month-end stops being a negotiation and becomes arithmetic.