How to price deck building jobs from footings to final inspection

Nearly every deck buyer opens with the same question: what do you charge per square foot? You will want a starting answer for the phone, but the number on the contract has to come out of the job. A deck is a stack of assemblies with their own labor and materials: footings, framing, the connection to the house, the walking surface, railings, stairs, and whatever has to come off the old deck first. Two decks with the same footprint can land far apart once height, stairs and railing are counted. This guide prices a deck from those assemblies. It assumes you already know what one labor hour costs you with burden included, and how much overhead each billable hour has to carry. Our general service pricing guide works both out step by step, and the hourly rate calculator finds the minimum rate a solo builder needs from a pay goal and overhead.

What units drive a deck price?

• Deck area by material. Square feet of walking surface, priced separately for pressure-treated, cedar, composite and PVC boards. Layout matters as well: diagonal runs, picture-frame borders and inlays add cuts, waste and hours.
• Height above grade. Taller decks need longer posts, more setup and fall protection for the crew. Under DCA 6, the American Wood Council's construction guide for wood decks, any deck standing more than 30 inches above grade must have a guard, so height also decides whether railing is a choice or a requirement.
• Footings. Count them from the framing plan and price them by depth and soil. DCA 6 puts footings on undisturbed soil at least 12 inches down or below the local frost line, whichever is deeper. A deep frost line means deeper holes and more concrete under every post.
• The house connection. A ledger means pulling siding, flashing the wall and fastening into a band joist that can carry the deck. DCA 6 prohibits ledgers on brick or stone veneer, hollow masonry and cantilevered overhangs, which turns those jobs into non-ledger decks carried by a beam and posts along the house. The same guide says deck footings closer than 5 feet to a house foundation wall must bear at the same elevation as the house footing, which can mean far deeper holes beside a basement.
• Railing. Linear feet by system (wood, composite, aluminum, cable, glass), plus posts, corners, mounting hardware and gates.
• Stairs. Count risers and width. DCA 6 requires a handrail on stairs with four or more risers, puts the posts at the bottom of a stair on their own footings, and says stringers may not bear on a patio or pad that is not founded at footing depth. It also calls for a light source at the top landing that lights the stairs, which can add electrical work to the stair line.
• Tear-out and disposal. Square feet of old deck, the old footings if they come out, and dump fees.
• Add-ons. Lighting, skirting, privacy walls, benches, planters, covers and pergolas, each on its own line.
• Paperwork. Drawings, permit applications, revisions, inspection visits and HOA submittals.

How do you estimate deck labor?

Break every build into phases and log labor hours for each one. After a season, those logs become production rates you can trust more than any rule of thumb:

• Design and paperwork: the consult, the drawing, the material takeoff, the permit application and any revisions the building department asks for.
• Layout and footings: batter boards and string lines, locate checks, digging, the footing inspection and the pour.
• Framing: the ledger and flashing or the house-side beam, then posts, beams, joists, hangers and blocking, logged by square foot and by height.
• Decking: by square foot and material, with extra time for borders, diagonal runs and hidden fasteners.
• Railing and stairs: hours per linear foot by railing system and hours per stair run by riser count.
• Trim, cleanup and walkthrough: fascia, skirting, hauling scraps and a final review with the homeowner.

Count labor hours, meaning one worker for one hour, rather than crew-days, so a single estimate fits a crew of two or a crew of four. Then count trips. DCA 6 has the building official verify footing bearing before concrete is placed, framing may wait on another inspection, and special-order railing can arrive after the boards are down. Each return trip costs drive time, loading and setup, so write the trip count into the estimate. Digging also waits on utility marks. 811 asks to be told a few business days before the auger comes out, so that wait sits between the signed contract and footing day.

Materials: markup and margin on a material-heavy job

Materials can be the biggest line on a deck estimate, especially with composite boards and premium railing. That makes the gap between markup and margin expensive. Markup compares profit with what the job cost you, and margin compares it with what the customer pays. Enter materials at your supplier's price, add them to labor and overhead, and price the whole sum at your target margin with the same formula you use for labor. If you like a separate materials markup, translate it into the margin it really produces before sending the quote. The table further down puts a dollar figure on that difference for a single deck.

The materials line should also carry:

• Waste. Offcuts, crowned or split boards, and end cuts on borders. Track real waste by material and board layout, and use your own figure.
• Fasteners and connectors. Hangers, post bases, structural screws, hidden fasteners and flashing add up across a frame. Price them from a takeoff, never as a round number. Near the ocean the bill climbs, because DCA 6 requires stainless steel hardware on decks exposed to salt water or close to the shoreline.
• Delivery. Delivery charges from the yard count as a direct cost. If you haul it yourself, the pickup time goes into labor hours.
• Disposal. What the landfill or transfer station charges to take the old deck. The EPA tells homeowners to check state and local waste programs before disposing of old CCA-treated wood, so ask your transfer station what it takes before you price tear-outs.

Lumber and decking prices move, and lead times on special-order colors vary. Put a date and an expiration on every quote, and refigure the price if the homeowner signs late. Contracts signed in the customer's house can trigger the FTC's Cooling-Off Rule, which lets the buyer back out within three business days, so place special orders only after that window has passed.

Worked example: a raised composite deck replacing an old wood deck

Everything in this table is hypothetical. The size, production rates, wage, overhead, material costs, fees and margin were invented to show the arithmetic, and none of them is a going rate anywhere. The job: tear out an old wood deck and build a composite deck off a kitchen door, high enough to need a guard, with one stair run and a ledger on a wood-framed wall. Every row runs on the formula behind our job price calculator. Cost: labor hours multiplied by the hourly labor cost, plus materials, plus labor hours multiplied by overhead per hour. Price: that cost over one minus the target margin.

Look at the square-foot rows. That figure describes this deck and nothing else: drop the tear-out and it falls, add a second stair run, a taller frame or a cable railing and it climbs. Should you post a starting square-foot price for each material, base it on a bare-bones run of this table (ground level, no tear-out, no railing, no stairs) and list what raises it. Rerun the table for every estimate in the job price calculator, and check whether the profit line is one you would sign up for.

Minimum charges for repairs and small jobs

A loose guard, a few soft boards or a rotted stair stringer can take less time on site than the drive, the loading and the material run. Set a minimum ticket that covers a trip, setup and a short block of labor, and add a trip charge outside your core area. Repairs from a home inspection report often come with a closing date. Price the rush (an evening, a Saturday, moving another customer) instead of absorbing it. Small repairs also feed future builds, so record the age, material and condition of every deck you fix. When that owner is ready to replace it, you already have the measurements and photos.

Recurring work versus one-time builds

New decks and replacements are one-time jobs and the heart of the trade. The repeat work is smaller and steadier: cleaning and sealing wood decks on a cycle, yearly checks of guards, stairs and connections, board and railing repairs, and the add-ons an owner passed on the first time, such as lighting, a cover or skirting. Price maintenance per visit from your own production rates and material costs, then decide whether to sell it as a plan with a set yearly price. Try your own sign-up and renewal guesses in our maintenance plan calculator; it projects what a deck care plan could grow into. Keep each deck's size, material, install date and finish on file so you can quote maintenance without measuring again and send the reminder at the right time of year.

Travel, supply runs and multi-day builds

A deck build means several days on site plus trips that never show on the invoice: the consult, the permit office or portal, the footing inspection, lumber yard runs, dump runs and the final walkthrough. Count the days the crew drives to the job and carry that drive time in your labor hours or your overhead rate, one or the other, on purpose. Draw a home territory on the map; for decks outside it, charge a travel line that grows with each day the crew has to commute. Group consults and small repairs by area on the calendar, and have materials delivered to the site where you can, so paid crew hours go into building.

Quoting from photos versus a site visit

Photos and satellite views are good for two things: budget ranges on the first call, and small repairs where the problem is plain to see. A quote form that asks for photos of the deck and the house wall, the rough size, the height at the tallest corner, the material the owner wants, and whether an old deck comes out tightens the budget range so the signed price comes as less of a surprise.

A binding number waits for the walk-around. On site, check the things that move cost and hide from photos: the siding and the band joist where a ledger would go (veneer means a non-ledger frame), the slope and the height at each corner, soil and roots, the path for posts and long boards, septic tanks and private lines, the condition of old footings, and the height of the door threshold. Bring decking and railing samples, measure, and photograph everything you will need for the drawing.

Count consult time as overhead. The hours spent on decks that never sign are spread over the decks that do, which is why qualifying on the phone (budget, timeline, HOA approval, material) and following up on every quote pays off. Some builders charge a design fee and credit it to the contract when the customer signs; whether that fits depends on your market and how detailed your drawings are. Our guide to quote follow-up covers what to send after the visit, and good, better, best quotes shows how to price two or three materials on one footprint.

Warranty and callback costs

Deck callbacks follow patterns: boards that cup, gap or squeak, railing posts that loosen, stairs that settle, staining below a ledger, finish complaints on wood. Some are workmanship, some are product, and some come from the ground moving.

Read the manufacturer warranty on every product you install, because it decides who pays for the labor. Trex's 2023 limited warranty for decking, fascia and cladding, for example, is conditioned on the product being stored, handled, installed and maintained according to Trex's instructions. It excludes conditions caused by improper installation, including improper gapping, and by movement or settling of the supporting structure, and it does not cover the labor or freight to remove defective product and install replacements. Trex publishes a separate TrexPro labor warranty that pays reasonable replacement labor when a TrexPro contractor installed the product and registered the warranty. Other manufacturers set their own terms. Where no program like that applies, plan on the labor for a product claim landing on you or the homeowner.

Then put your own workmanship promise in writing. Name the covered items and the term, and list the exclusions: ground movement, storm damage, changes by others, and finishes the owner agreed to maintain. Tie each callback to the deck it came from, add up a year's worth, and spread that total across the year's decks; the result is the per-job reserve in the example. For wording, see how to write a warranty policy. If callbacks cluster on one detail, such as a railing post mounting method, the fix and its cost belong in the price of that detail.

Where do deck estimates lose money?

• Giving a firm square-foot price on the phone. Height, stairs, railing and the house wall all change it.
• Folding railing and stairs into the area price. They are separate assemblies with their own labor, hardware and code requirements.
• Assuming a ledger. Brick veneer found at the consult and priced as a ledger anyway means a redesign, a non-ledger frame and a thinner margin.
• Forgetting the waits. Utility marks, inspection holds, special-order railing and weather each add a trip or a gap.
• Leaving out paperwork hours. Drawings, permit revisions and inspection meetings are real labor.
• Stale material prices. An undated quote lets a homeowner sign at last season's lumber prices.
• Treating markup as margin. Check the shortfall row in the example to see how far apart they land.
• No callback reserve. When a manufacturer warranty leaves the labor out, the reserve has to cover it.

Deck pricing sharpens with every job you log: hours by phase and height, waste by material, callbacks by detail. Keep those records on each job and you can see which deck types and materials pay best. Our custom CRM started as the system behind our own service companies, and it keeps that record on every job. To win design consults through your own site and phone line, see our page for deck builders. Owners still forming the company can start with our deck business startup guide, which walks through licensing, insurance and equipment.

Frequently asked questions