Deck & Patio Quote Checklist
A complete deck or patio quote should specify materials by brand and grade, include foundation and permit costs, and cover every structural element. Missing items — especially footings and permits — are how projects run over budget or create problems at resale.
Required line items
A complete deck or patio quote should explicitly address each of the following. Items that are genuinely excluded should be stated as exclusions — not left unmentioned.
Demolition of existing structure
If applicable — removal and disposal of old deck
Footings & foundation
Concrete footings sized to local codes and soil conditions
Framing
Joists, beams, and ledger board with hardware specified
Decking surface
Material specified with brand, grade, and square footage
Railing
Type, height, and material specified (required by code above certain heights)
Stairs
Number of steps, material, and any railing
Fasteners & hardware
Hidden fasteners, joist hangers, post bases
Permits & inspections
Permit fees and inspection scheduling
Common red flags in deck or patio quotes
These are the most frequently omitted or vague items. Any of them in your quote should prompt a follow-up before you sign.
No foundation or footings line item
Deck footings must be engineered for soil conditions and local frost depth. If there's no foundation line item, ask how the deck is being supported — skimping here is a structural risk.
No permit line item
Most jurisdictions require permits for attached decks or any deck over a certain height. Unpermitted decks can block home sales and may need to be torn down.
Decking material not specified by brand or grade
There's a wide range in composite decking quality (Trex vs. generic brands) and wood grades. 'Composite decking' in a quote without a specific product isn't comparable.
Railing not included
Railing is often priced separately but is required by code for decks above a certain height. If it's not in the quote, ask whether it's included or a separate bid.
No mention of demolition if replacing existing
If there's an existing deck being replaced, demo and disposal costs should be listed. Omitting them is how estimates grow after work starts.
Three things to confirm before signing a deck or patio contract
These are the final checks before you commit — specific to what matters most in a deck or patio project.
Payment follows footing inspection — not calendar dates
Deck construction has clear milestones. Never pay more than 30% before footings are poured and inspected by the building department — footings are the foundation of the structure and an inspection failure at that stage can require significant rework.
Permit is structural — not optional
Most attached decks and elevated structures require permits regardless of size. Inspectors verify footing depth, framing connections, and railing height. Unpermitted decks can block home sales and may need to be torn down to satisfy buyers.
Labor warranty covers structural components specifically
Get the contractor's labor warranty in writing and confirm it specifically covers structural elements — post connections, joist hangers, and ledger attachment. Composite decking manufacturer warranties cover the boards, not the installation.