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§ Sheet LP / 06 · For St. Louis, MO deck contractors

St. Louis, MO
OTHER (DECKS, FLATWORK) ESTIMATING.

Estimate.Pro helps St. Louis deck and flatwork contractors go from site walkthrough to sendable bid in 8 minutes. Free to start.
§ St. Louis fast facts

QUICK ANSWERS.

Do I need a permit to build a deck in St. Louis City vs. St. Louis County?

Yes in most cases, but the rules differ. St. Louis City issues permits through the city's Building Division. St. Louis County municipalities each operate their own permitting offices — Kirkwood, Creve Coeur, Ladue, and others have independent processes. Decks over 200 sq ft or more than 30 inches above grade almost universally require a permit and at least a framing inspection. Always verify with the specific municipality before quoting permit fees to your client.

§ Built for St. Louis

LOCAL FACTS.

MISSOURI FROST DEPTH FOR ST. LOUIS REGION (IRC TABLE R301.2(1)).

30 inches — deck footing depths must meet or exceed this spec in St. Louis City and County jurisdictions

TYPICAL DECK PERMIT FEE IN ST. LOUIS COUNTY MUNICIPALITIES.

Permit fees for residential decks in St. Louis County municipalities (e.g., Kirkwood, Webster Groves) typically range from $75 to $250 depending on project valuation and jurisdiction; plan review adds 1–3 weeks in most municipalities

AVERAGE CARPENTER/DECK FRAMING LABOR RATE IN THE ST. LOUIS METRO.

Approximately $28–$38 per hour for experienced deck and flatwork labor in the St. Louis metro area, per BLS Missouri occupational wage data for the St. Louis MSA

SEASONALITY: PEAK DEMAND WINDOW FOR DECKS AND FLATWORK IN ST. LOUIS.

March through June is the primary bidding season; backlog builds quickly after last average frost date (mid-March), and homeowners expect projects complete before peak summer heat in July–August

§ Why other (decks, flatwork) pros in St. Louis use Estimate.Pro

THE BID ENGINE.

## Deck and Flatwork Estimating in St. Louis St. Louis contractors work across a wide band of conditions. Expansive clay soils in South City and West County shift footings. Freeze-thaw cycles crack flatwork that was poured without proper sub-base prep. The Missouri River corridor adds humidity that degrades untreated lumber faster than most markets. If your estimates don't account for these site realities, your margin disappears before the job is half done. Estimate.Pro is built around the way deck and flatwork contractors actually work: walk the site, capture measurements, price materials, and send a bid the same day. --- ### What Makes Deck and Flatwork Estimating Different in St. Louis **Soil conditions drive footing specs.** St. Louis sits on expansive clay and loess soils. A deck estimate that doesn't distinguish between a sandy-loam backyard in Chesterfield and a clay-heavy lot in Maplewood is a liability. The Missouri frost depth is 30 inches per IRC Table R301.2(1) for the St. Louis region. Every footing spec in your estimate needs to reflect that number or you're setting yourself up for a callback. **Concrete flatwork pricing is volatile.** Ready-mix pricing in the St. Louis metro tracks closely with fuel costs and plant capacity at facilities along I-270 and I-44. A saved material cost workspace lets you update your concrete unit price once and reprice every active estimate automatically. When the batch plant moves the price, you move your bids. **Permit timelines vary by municipality.** St. Louis City, St. Louis County, and the dozens of independent municipalities—Kirkwood, Webster Groves, Ladue, Creve Coeur—each issue their own building permits and apply their own plan review timelines. A deck over 200 square feet or 30 inches off grade requires a permit and inspections in most of these jurisdictions. Your estimate needs a line item for permit fees and a realistic schedule buffer. **ICPI standards matter for paver flatwork.** If you're installing concrete pavers or segmental retaining walls, the Interlocking Concrete Pavement Institute (ICPI) spec library is the field reference St. Louis commercial clients and HOAs expect you to cite. Estimate.Pro supports flatwork scope-of-work generation that references ICPI base preparation and compaction standards so your bid reads like a professional document, not a handwritten quote. --- ### How Estimate.Pro Works for Deck and Flatwork Contractors **Walk the site. Capture it fast.** On supported devices, the AR measurement tool uses ONNX-assisted live detection to capture deck dimensions and flatwork square footage in the field. On any device, photo measurements are marked clearly as estimates so you know exactly what's verified and what needs a second look. **AI scope-of-work in minutes.** After your walkthrough, the AI drafts a scope of work: ledger attachment, joist sizing, decking species, footing diameter and depth, concrete mix spec, control joint layout. You review, adjust, and approve. Median time from walkthrough to sendable bid is 8 minutes. **Material costs you control.** Your saved material cost workspace holds your current lumber, concrete, hardware, and paver pricing. Update it when your supplier changes the sheet. Every estimate re-prices automatically. No spreadsheet hunting. **Send and get paid.** Pro and Elite tiers include Stripe Connect for client payment collection. Elite adds invoice exports for your accounting workflow. The platform fee is 3% on Free and 0% on Pro and above. --- ### Pricing - **Free** — No credit card required. Core estimating for solo operators. - **Pro** — $39 per seat per month. Full AR measurement, saved cost workspace, Stripe Connect at 0% platform fee. - **Elite** — $79 per seat per month. Pro features plus invoice exports and advanced workflows. - **Crew** — $399 per month flat. Unlimited seats for larger operations. --- ### Built for the St. Louis Deck and Flatwork Market Spring and early summer are the high-demand window in St. Louis. Homeowners call after the last frost clears and want decks and patios done before July. If your bidding process takes days, you lose jobs to contractors who turn quotes the same afternoon. Estimate.Pro is not a project management platform dressed up with an estimating tab. It is an estimating tool built for contractors who need to produce accurate, professional bids fast and get back to the field.
§ Equip the crew

Bid faster in St. Louis.

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