How to Price a Deck Job

Pricing a deck job right means working through the same sequence every time, not re-deriving it from scratch on each bid. Here's the full process, step by step, from the first measurement to the proposal in the client's hands.

1. Start with scope and measurements

Before anything else: what's the job, actually? New build, resurface, railing-only, repair, or addition, and the real dimensions. Everything downstream is built on this, so get it right here rather than correcting it three steps later.

2. Estimate the materials

Decking, framing, structural hardware, fasteners, and concrete, priced out based on the material you're actually using (pressure-treated, Trex, TimberTech, PVC), including waste. Waste matters: pricing only the theoretical quantity is how you end up short on-site and buying more at the worst possible time.

3. Estimate the labor

Labor isn't a flat rate, it's your crew, your productivity, and the hours this specific job actually takes: setup, footings, framing, decking, railing, stairs, cleanup. A generic industry number isn't your number.

4. Account for site conditions

This is the step that gets skipped most often, and it's expensive when it does. A pool, mature trees, a retaining wall, limited access, a steep grade, any of these adds real labor hours a flat estimate never sees. One missed line item here routinely costs $3,000 or more on a job. Price the site, not just the deck.

5. Add permits, equipment, and other costs

The second most commonly skipped step. Building permits, engineering (when the job calls for it), equipment rental, a dumpster, these are real costs that belong in the bid, not expenses you discover after you've already quoted the price.

6. Add it up: total job cost

Materials plus labor plus site adjustments plus permits, equipment, and other costs, plus your overhead, your business's indirect operating costs, separate from what this specific job costs to build. This total is your real number before any profit is added.

7. Apply your target margin, not markup

Margin and markup aren't the same thing, and mixing them up is one of the most common ways contractors end up underpriced. Margin is profit as a percentage of the selling price; markup is profit as a percentage of cost. Set a target margin, and your selling price follows from it rather than from a guess. (Full breakdown: Profit vs. Margin for Deck Contractors.)

8. Set the selling price

Selling price = total job cost ÷ (1 − target margin). That's the recommended number. You can still override it, the goal is to know exactly what you're giving up or gaining when you do, not to hand pricing over to a formula.

9. Turn it into a proposal

The client doesn't need to see your costs, labor rates, overhead, or margin, they need the scope, what's included, what's excluded, any allowances, the price, and the terms, presented clearly. The estimate and the proposal should come from the same job information, not be rebuilt separately.

Run this same sequence on the 24×16 deck used throughout this site, raised, attached, Trex decking, 42 LF aluminum railing, 7-step stairs, moderate site, lighting, dumpster, permit, and engineering, and see the full line-by-line cost breakdown worked out on the Deck Cost Estimator page.