Why the sample deck crew needs $61.37 before profit
$61.37 is what the owner, the carpenter and the helper cost per hour they actually build, with payroll costs, workers' comp and $40,900 a year of overhead spread across those hours. The truck, trailer, saws and auger are not in it; the calculator charges them to each deck by the hours they run, so a deck that needs the auger all morning pays for it.
The owner is the expensive hour. He is the one meeting customers, drawing the deck, filing the permit and ordering from the lumber yard, so he builds for well under two thirds of his paid time. The general method is in the true hourly rate guide; put your own crew into the free true hourly rate calculator to see yours.
A short building season makes it worse. A deck crew in a cold state may build for eight or nine months, but the insurance, the truck payment and the phone bill run all twelve. Those months of overhead have to be earned in the building months, which pushes the hourly rate up.
A $13,000 labor line on a 468 sq ft deck, broken down
One Northeast builder charged $13,000 in labor for a 13 x 36 PVC deck, about 468 sq ft, over roughly 5 days on site. By our division that is about $27.78 a sq ft in labor, or about $2,600 a working day for the crew.
That labor line covers more than building. It pays for framing the deck, organizing the job, coordinating deliveries and being there when the inspector comes, which is why it is bigger than the crew's wages for five days.
The same builder says a cheaper installer might charge about $8,000 but take 3 weeks, fitting the deck between other jobs. Both prices can be right for the shop that sets them. What matters is whether your number covers your hours, including the return trips for every inspection.
How much profit should a deck builder add?
Plan on at least 25 to 35% profit, because the contractor carries the risk of the job. Plenty of builders admit they once made only about 10% without knowing it, and some experienced contractors won't look at a job under 40%.
The sample deck adds 25% profit on top of cost, plus a small cushion for rock in a footing hole or a warped board. On the finished deck, that works out like this:
| A | B | |
|---|---|---|
| 1 | Measure | Sample deck |
| 2 | Cost to build | $15,106.28 |
| 3 | Kept over cost | $5,954.60 |
| 4 | Markup on cost, overall | 39% |
| 5 | Margin on price | 28% |
| 6 | Earned per labor hour | $121.22 |
Markup is added to cost and margin is the share of price you keep, so a 39% markup is only a 28% margin. The full explanation lives in markup vs margin, and how profit differs from overhead is in overhead and profit.
| A | B | |
|---|---|---|
| 1 | If you want to keep this margin | Mark cost up by |
| 2 | 20% | 25% |
| 3 | 28% (the sample) | 39% |
| 4 | 33% | 50% |
| 5 | 40% | 67% |
Why lumber, decking and railing carry their own markup
Materials get a markup because you order them, haul them, store them, return the extras and eat the damaged boards. On a deck that is real work: every board, joist and railing section has to be bought, checked and moved.
Materials are about 38% of the sample price, so the markup on them is a small share of the profit, not the main source. The bigger risk is the other direction. Decking prices now vary widely from one product line to the next and move during the season, so a price list that is a few months old can be off by more than your markup. The calculator flags dealer prices that have gone stale.
Is deck building profitable, per labor hour?
The sample deck brings in $121.22 per labor hour against a $61.37 break-even, so each hour carries about $60 more toward the truck, the tools and profit. That is the number to check before you send a quote.
If a deck's figure is barely above your break-even, look for what's missing before you cut the price: the stair pad, the inspection visits, the yard runs, the extra boards for border cuts. Those are the lines that turn a busy season into a thin one.
Labor-only decks: pricing when the customer buys the boards
A labor-only deck still carries your full crew rate, the truck, permit time and the off-deck hours; only the material cost and its markup come out. Running the sample deck that way comes to about $9,372, or about $39 a sq ft, by our arithmetic.
Two things change on labor-only work. You lose the materials markup, so the labor price has to carry all of the profit. And you take on the customer's delivery timing: if their boards show up late or short, that is a change order, not your problem. Write it in the quote.
For the full priced deck, with the table and what other builders charged, see how much to charge for building a deck. The Deck Building Pricing Calculator works out your own crew rate and applies it the same way on every quote.