The DFW Fieldbook·Collin County·2026 edition
McKinney's housing stock skews newer than the rest of Collin County's older cities, with most decks going on subdivision homes built since 2000. Downtown McKinney's historic district is the exception — pier-and-beam Craftsman bungalows dominate there.
Editor's note — the calculator below uses the same coefficients as the homepage, tuned to typical McKinney lots. Numbers move with your inputs in real time; nothing is gated.
Adjust the inputs to match your project. Numbers update live.
Estimated total
Live≈ $28/sq ft–$55/sq ft installed, before state sales tax
§ Cost levers
Adjust the inputs above to model different scenarios — material choice, height, and railing are the biggest cost levers. The numbers reflect installed totals from current DFW contractor rates, before state sales tax.
§ II. Local context
Collin County · approx. 207K residents. The notes below are what tends to differ from the DFW average when builders quote in this city.
Most DFW cities require a building permit for any attached deck or any deck more than 30″ above grade, applying the IRC with local amendments. Setback and easement rules are set locally — applications go through the City of McKinney's Building Inspections division. McKinney follows the IRC with local amendments and has tighter setback rules in the historic preservation overlay covering the downtown area..
Always confirm setbacks and lot-coverage with your municipality before finalizing the design — rules vary at the lot level.
McKinney has more grade variation than most Collin County cities. North-side subdivisions like Stonebridge Ranch and Craig Ranch follow the rolling terrain, and a meaningful share of decks end up multi-level just to follow the lot — that immediately changes the framing math. Historic downtown McKinney decks face preservation overlay constraints similar to Fort Worth's historic districts.
§ III. Working with builders here
McKinney's builder market overlaps significantly with Frisco and Allen — many Collin County crews float across all three cities. Local McKinney contractors tend to know the rolling-terrain pattern in Stonebridge Ranch and Craig Ranch well, which is helpful because multi-level builds are more common here than in Frisco or Plano. Ask any contractor pricing a north-side McKinney job for examples of recent multi-level builds; the framing math on a stepped deck is different from a single-level walkout and less-experienced crews underprice it. For historic downtown projects, confirm the contractor has worked through the preservation overlay before — material and railing constraints differ from standard McKinney subdivisions.
McKinney follows the Collin County premium schedule — spring fully booked by mid-January. The fall discount window is narrow and reliable: 4–7% off typical pricing for September or October starts on standard composite builds.
§ IV. Reference builds
The mid-range composite walkout is the de-facto McKinney scenario — it matches most Stonebridge Ranch and Craig Ranch homes. The premium PVC build appears on larger Tucker Hill and Mallard Lakes lots. Budget PT 12×12 is the typical historic-downtown rebuild after demo of an existing PT deck. Costs are derived from the same pricing model the calculator uses; ranges are installed totals before state sales tax.
A simple 144 sq ft pressure-treated deck, sitting under 30″ off grade, with wood-picket railing and 3 stairs to the yard.
Installed total
$4,500 – $7,500
A 224 sq ft capped-composite deck off a kitchen walkout, 2–4 ft above grade with aluminum railing, low-voltage lighting, and 4 stairs.
Installed total
$13,200 – $22,800
A 320 sq ft PVC deck 4–8 ft off grade with cable railing, a built-in bench, low-voltage lighting, and a 12×12 pergola.
Installed total
$28,000 – $52,000
§ I. How it works
The site exists to give homeowners a real number before they ever speak to a contractor. That's the whole pitch.
Estimate
Size, material, height, and features. The price range updates the moment you change a slider — there's no email gate, no "see your results" button, no waiting room. The calculator is the page.
Compare
Pressure-treated, cedar, composite, and PVC each shift the bottom line in predictable ways. Open the line-by-line breakdown and you'll see exactly which line items move when you switch — framing stays roughly flat, decking and railing do most of the work.
Quote
Use the printed estimate as a sanity check on the quotes you receive. If a contractor's number for, say, framing is well outside our range, that's a question worth asking — not a deal-breaker, just a conversation starter.
§ II. The cost guide
The honest answer, with the math behind it.
Most homeowners in the Dallas–Fort Worth metroplex can expect to pay between $25 and $95 per square foot installed for a new deck in 2026, with the final price driven primarily by material choice, height above grade, and railing type. A typical 16′ × 12′ deck (192 sq ft) lands somewhere between $6,000 on the low end (ground-level, pressure-treated, no built-ins) and $24,000+ on the high end (raised PVC deck with glass railing, stairs, and built-in features). The calculator above gives you a tighter range based on your specific inputs.
Roughly half of any deck quote is labour. The rest splits across lumber or composite boards, fasteners and structural hardware, footings, permit fees, and disposal of the old deck if you’re replacing one. Contractors who break out their quote line-by-line are easier to compare; quotes with a single “turnkey” number make it harder to spot where corners are being cut.
A ground-level deck and a 6-foot raised deck can use identical decking boards but have wildly different framing costs. Raised decks need engineered footings to anchor below the expansive-clay layer (most DFW jurisdictions require piers 24″+ deep to stable bearing), heavier joists, beam reinforcement, and code-compliant guardrails on every exposed edge. Expect a raised 4–8 ft deck to cost 18–30% more than the same square footage at ground level.
Wood pickets are cheapest at roughly $20–$40 per linear foot installed. Aluminum jumps to $50–$85, and tempered glass panels run $100–$180 per linear foot. On a 16′ × 12′ deck with railing on three sides, that’s a $1,300 spread between wood and aluminum, and over $5,500 between wood and glass. If view matters, glass is worth it; if it doesn’t, you have better places to put the money.
Almost every DFW city requires a building permit for any deck attached to the house or more than 30 inches above grade. Dallas, Fort Worth, Plano, Frisco, Arlington, Irving, McKinney, Garland, Richardson, Denton, Grand Prairie, Mesquite, and Carrollton all enforce this with their own IRC amendments; fees typically run $150–$600 for a residential deck. Plano and Frisco often require an engineered drawing on top of the permit fee. Skipping the permit seems like a way to save money until you go to sell the house and the buyer’s home inspector catches it — or worse, a neighbour complains and the city issues a stop-work order. Get the permit. It also means a building inspector will catch framing mistakes before they’re hidden under decking.
DFW deck builders are usually booked 6–10 weeks out from March through June. If you want a deck for spring, start collecting quotes in January or February. Late-fall quotes are often more competitive — some contractors will lock in an October/November build at a lower rate to keep their crews busy after the summer heat. The calculator above is a good starting point, but the real next step is getting a few licensed local builders to look at your lot.
§ III. Reader questions
Practical answers, no upselling.
§ V. Coverage
Pricing patterns and permit rules differ a little across the Dallas–Fort Worth metroplex. Pick the city that matches your project.