Manpower productivity for concrete crews: measure it, read it, bid on it

Manpower productivity is the plainest number in the business and the least often written down: how much work a labor-hour buys. For a concrete sub that is yards placed per man-hour — or, the way estimators say it, man-hours per cubic yard. Every bid you have ever sent assumed a value for it. Most crews never find out what theirs actually is, which is how a job can lose money while everyone on it works hard.

What manpower productivity means — and what it doesn’t

Productivity is output per unit of labor: quantity ÷ labor-hours. It is not utilization, the share of available hours that were assigned or worked, and it is not effort. A crew can be fully utilized and unproductive (a full pour standing around waiting on trucks) or lightly utilized and very productive (a short, well-fed day). Utilization tells you whether you have the right number of people; productivity tells you what each hour of them turns out. A concrete sub needs both numbers, and they answer different questions: the first is a crew board question, the second a per-job one.

Three ways to write the same number

The same fact — five men, eight hours, 45 yards placed and finished — has three useful forms, and each belongs to a different person in the company.

The unit rate is how the work gets priced. The output rate is how it gets scheduled. The productivity factor is the one worth watching weekly, because it is unitless: 1.00 means on bid, 0.90 means every ten hours you sold cost eleven, and a footing job and a slab job can sit side by side on it.

Planning benchmarks — and why yours will differ

The man-hours guide lays out our planning ranges: 0.5–1.0 MH/CY for standard flatwork placed and finished off the chute, below 0.5 for large pump-fed slabs, 1.0–1.5 for footings and foundation walls, 1.5–2.5 and up for decorative and stamped work — placement and finishing only. Turn them round and they become the output rates a schedule needs: at eight-hour days, 0.9 MH/CY is 8.9 yards per man-day, so a five-person crew places about 44 yards — which is exactly the 40–50 CY crew-day the pour-rate guide plans on. The two numbers are one fact seen from two sides.

Your number will not match the table, and it shouldn’t. Tables average other people’s crews, specs, and decades. They are a sanity check for a bid that is wildly off; they cannot price your work. The only rate that can is your own trailing average per work type.

How to measure it from paperwork you already have

1. Per pour, record the hours actually worked on it — crew count and hours from the daily report or the timesheet, not the scheduled day.
2. Record the yards placed from the tickets. Ordered is not placed; returned and wasted concrete is not output.
3. Divide, and tag the pour with a work type — flatwork, footings, walls, decorative. One rate per work type, never one blended number.
4. Roll it up weekly, per job and per work type, and keep a trailing average by type. That trailing rate is your real unit price.
5. Compare to the rate you bid for that type — the productivity factor. Under 0.90 two weeks running is a diagnosis to make, not a number to admire.

Where the number quietly goes wrong:

• Averaging across work types — a month of footings and slabs blended together tells you nothing about either.
• Crew-hours mistaken for man-hours — a “0.15 per yard” that looks impossibly good may be crew-hours. Check units before you check your pride.
• Mobilization, washout, and travel — in or out, decide once, and apply it the same way to the bid and the actual.
• Unlogged days filled with a standard eight — fine as a placeholder, dangerous as a fact. Flag estimated hours as estimated.
• Formwork and rebar hours in the per-yard rate — they have their own units. Keep them there.

Run your own number

Crew, hours, days, and the yards placed. Add the rate you bid and it returns the productivity factor and the hours the gap cost; add a burdened labor rate and it puts dollars on them.

What moves the number

• Pour size — setup, mobilization, and washout are fixed hours; a bigger pour spreads them over more yards. The cheapest yard is usually part of the biggest pour you can safely place and finish. A Concordia University study of slab-on-grade work points the same way: placing productivity rose with the size of the daily pour (Moselhi & Hason, 1994).
• Delivery matched to placement — a crew waiting on trucks is logging hours against zero yards. The pour-rate guide’s two ceilings are productivity in disguise.
• Finishing ahead of the set — a finishing crew chasing the set works the same hours for a worse slab and a longer day.
• Late cancellations — a pour called off at 6 AM is a half-day of hours with no yards behind it. This is where a one-click cancel the night before pays for itself in the productivity number.
• Weather, access, mix, daylight — cold stretches the set, a long carry adds handling, and the day ends when finishing ends.
• Crew mix — placing and finishing are different skills; the rate is set by the thinner of the two.

Turn it into decisions

• Bid on your trailing rate per work type, not the table — and defend the bid with the pours behind it.
• Size crews from the output rate. Schedule quantity ÷ yards per man-day = man-days; man-days ÷ crew size = the crew-weeks the job needs. That is the demand line manpower projection stacks against the crews you actually have.
• Watch the productivity factor weekly, per job. It is the early-warning light: it moves weeks before the job cost report does.
• Feed what you learn back into the next bid. A rate that improves after a year of tracking is worth more than any software.

Where the arithmetic does itself

The reason most subs never have this number is not the math; it is that the two inputs live in different places. In Planning Ops they don’t. The daily report the foreman files posts the crew’s hours into time tracking, the pour board already carries every pour’s yardage, and Labor Productivity divides one by the other per job — man-hours or man-days per cubic yard, actual next to the rate you bid, or per cubic metre for UK and Canadian workspaces. Utilization by week and man-weeks per foreman sit in the Manpower analytics beside it, so both questions get answered from the same crew board.

Know the number before the job cost report does

One trailing rate per work type and one productivity factor per job, read on Mondays — that is the whole discipline, and it compounds into bids you can defend and crews sized to the work. Planning Ops is built for concrete subs, veteran-owned, with a 14-day free trial and your whole crew riding free as viewers. Track Your Real Rate →