Two deck quotes in Jacksonville can be thousands apart because they rarely describe the same deck. The gap usually sits in framing lumber and joist spacing, footings, board grade and brand, railings, permits, the waste allowance, who does the labor, and what the warranty covers. Put the quotes side by side line by line, and ask each contractor to fill in what is missing before you compare totals.
How do you compare two deck quotes?
The total at the bottom of a page tells you very little. Before you decide one quote is high or the other is low, make both contractors describe the same deck. Ask for size, height, layout, board line, railing type, stair count, and what is included for permits and cleanup. If one quote is a single line and the other runs two pages, ask the short one to break it out.
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Build a side-by-side grid
A simple grid helps. List each item down the left and fill in what each contractor wrote.
| Line item | Question to ask |
|---|---|
| Framing lumber | What treatment rating do the joists, beams and posts carry? |
| Joist spacing | What spacing, and does it match the board maker’s instructions? |
| Footings | How many, how deep, and what do the posts sit on? |
| Decking boards | Exact brand, product line and color? |
| Fasteners and trim | Hidden clips or face screws? Fascia and border included? |
| Railings and stairs | Style, linear footage, and is stair rail included? |
| Demolition | Is removal and haul-off of the old deck included? |
| Permit and drawings | Who pulls the permit and pays for it? |
| Waste allowance | How many boards, and who keeps the leftovers? |
| Labor | Own crew or subcontractors? |
| Warranty | What does the workmanship warranty cover, and for how long? |
If you have not set a budget yet, our guide to what goes into deck costs in Jacksonville covers the general factors. This post is about comparing quotes you already hold.
The takeaway: Compare line items on the same scope, not the totals at the bottom of the page.
Why do framing, joist spacing and footings change a deck quote?
You stop seeing the frame once the boards go down. It is also where quotes add or cut the most hidden work. In Jacksonville humidity, framing close to the ground should be pressure-treated and rated for ground contact. Ask each contractor what rating the joists, beams and posts carry.
Joist spacing
Joist spacing matters most on composite. Trex, TimberTech and MoistureShield each publish maximum spans for their boards in their installation instructions. Typically that is 16 inches on center for boards run straight across the joists. Diagonal layouts need closer spacing, often 12 inches.
Tighter spacing means more lumber and labor, which raises a quote. It also reduces flex, the bounce people notice on a new composite deck. Spacing wider than the board maker allows can put the board warranty at risk.
Footings
Footings vary just as much. Northeast Florida soil is often sandy with a high water table. Some lots near the St. Johns River, the Intracoastal and the beaches sit in flood zones, which brings its own set of rules for building a deck in a flood zone. One contractor may pour concrete footings, another may bury posts, another may propose piers or piles. Ask how many footings, how deep, and what they bear on.
Hardware near the coast
On a deck in Ponte Vedra or Jacksonville Beach, also ask about connectors and screws. Salt air corrodes plain steel, so hardware should be rated for coastal exposure. Ask what coating or metal the joist hangers and screws are.
The takeaway: A cheaper frame often means wider joist spacing, fewer footings or lighter hardware, so get each one spelled out.
How do board grade, brand and fasteners change a deck quote?
A composite deck quote can name a brand and still leave out the important part. The board itself, the grade and the fasteners can all differ between two quotes that look alike.
Composite product lines
Each brand sells several lines, from entry boards to capped boards with deeper color and better stain and fade resistance. Two quotes can both say Trex or TimberTech and price different products. Get the exact product line and color in writing.
Wood grades
Wood quotes vary too. Pressure-treated pine comes in grades, and higher grades have fewer knots and less warping. Our pages on composite deck options and pressure-treated wood decks describe the materials we install.
Fasteners and trim
Hidden clips, color-matched face screws and plain deck screws look different and cost different amounts. A picture-frame border and fascia boards over the rim joists add material and time. If one quote includes them and the other does not, the two decks will not look the same when finished.
The takeaway: Two quotes that name the same brand can still price different boards, so get the product line, color and fastener type in writing.
Why do railings, stairs and demolition swing a deck quote?
Railings
Railings are often the biggest single swing between two quotes. Wood, composite, aluminum and cable rail are priced very differently per run, and stair rail adds more. Ask for the railing style, post spacing, and whether stair rail, post sleeves and caps are included.
Stairs
Stairs add framing too. A landing, wider treads or extra risers on a raised deck all count. Ask each contractor how many steps they priced and whether a landing is part of it.
Demolition and rot repair
On a replacement, check whether removal and haul-off of the old wood deck is in the price. Also check whether rotted ledger or joist repair is priced or left as a change order. A low quote that leaves rot repair open can end up the higher quote once the old boards come up.
The takeaway: A low quote that leaves railings, stairs or rot repair vague can become the higher quote once work starts.
Does a deck quote include permits, drawings and HOA approval?
Building permits
Many decks in Duval, St. Johns and Clay counties need a building permit, and each county runs its own permit process. One quote may include drawings, permit fees and inspections. Another may leave the permit to you or skip it. A deck built without a required permit can cause problems with inspections, insurance or a future sale. Our post on deck building permits in Jacksonville covers the basics.
HOA review
HOA approval is separate. Neighborhoods in Nocatee, Ponte Vedra, Fleming Island and Oakleaf often require architectural review before work starts. Ask each contractor who prepares the HOA submittal and whether the schedule allows time for review.
The takeaway: Know who pulls the permit and who handles HOA review before you compare prices.
Who pays for waste and keeps the leftover deck boards?
The waste allowance
Every material list includes a waste allowance for cuts, defects and layout. Diagonal patterns, borders and multi-level decks need more. A quote with almost no allowance may lead to a change order when boards run short. A quote with a large allowance may be padded. Ask each contractor to show the board count against the deck size.
Who keeps the extras
Who keeps the extra boards depends on the contract.
- Fixed-price contract: you pay the agreed price. Over-ordering is the contractor’s risk, and leftovers usually stay with them unless the contract says otherwise.
- Cost-plus or time-and-materials contract: you pay for materials as bought. Boards you paid for are yours, and asking for them or for a credit on returns is reasonable.
If you already signed and there is a stack of unused boards, read the contract first, then ask in writing. Some suppliers take back full, unopened boards, so a credit may be possible.
The takeaway: Ask for the board count in writing, and check your contract type before you ask about leftovers.
Can you ask to see a subcontractor’s bid?
Some deck companies use their own crews. Others sub out framing, railings or the whole job. Either can work, but it changes who is on your property and who comes back when something needs fixing. Ask who will do the work and who supervises it.
On a fixed-price job
Asking to see a sub’s bid is fair, but the contractor does not have to share it. Their markup covers scheduling, supervision, insurance and warranty work. What you should get is:
- The names of the subs, and proof they are licensed and insured. You can look up a Florida contractor license on the Florida DBPR license search.
- A clear scope for each sub, so nothing falls between them.
- Lien releases. Under Florida’s construction lien law (Chapter 713 of the Florida Statutes), unpaid subs and suppliers can file a lien on your property even after you paid the contractor. Ask for releases as you make payments.
On a cost-plus job
On a cost-plus contract, sub invoices are part of what you pay, so seeing them is normal.
The takeaway: You may not get the sub’s bid, but you should get their names, proof of license and insurance, and lien releases.
What does a deck warranty cover, and when should you make the final payment?
Two warranties
A deck carries two warranties. The board manufacturer covers the product, as long as it is installed to the maker’s instructions. The contractor covers the workmanship. Ask each contractor what their workmanship warranty covers, how long it runs, and how you reach them to use it.
Follow-through
A higher quote sometimes buys reliability and sometimes just overhead. Follow-through is how you tell. Watch whether the contractor answers questions before you sign, puts changes in writing, and returns to finish punch-list items after payment. Call references on similar decks.
Payment terms
Compare deposit size, when payments fall, and what triggers the final one. Tie the final payment to a walkthrough and a passed inspection.
The takeaway: Get both warranties in writing and hold the final payment until the walkthrough and inspection are done.
What should you expect when you ask Coastal for a deck quote?
We build wood and composite decks with Trex, TimberTech and MoistureShield boards in Jacksonville, St. Augustine, Ponte Vedra, Orange Park, Fleming Island and nearby. You can read how a job runs on our deck installation page.
Hold our quote to the same grid as any other. A useful quote should cover:
- Deck size, height and layout.
- Framing lumber, treatment rating, joist spacing and footing plan.
- Board brand, product line, color and fastener type.
- Railing style, stairs and any demolition of an old deck.
- Who handles the permit, drawings and HOA submittal.
- Payment schedule and warranty terms.
If a row is blank, ask us to fill it in before you compare totals. To get a second written quote to set beside the one you have, request a deck quote.
The takeaway: Any quote you get, ours included, should answer every row in the grid above.
Which deck quote should you choose?
Pick the quote that describes the deck you want in the most detail, not the one with the lowest total. Line up framing, footings, boards, railings, permits, waste, labor and warranty, and ask each contractor to fill the gaps. Once both quotes cover the same deck, the price difference usually explains itself. If you have questions about a quote you already hold, contact Coastal Outdoor Construction.
Want a second written quote to compare line by line? Request a deck quote from Coastal Outdoor Construction.
Frequently asked questions
How many deck quotes should I get?
Two or three written quotes for the same scope is usually enough to see where prices land. More than that tends to add confusion rather than clarity. Give every contractor the same size, height, board line and railing style so the quotes can be compared.
Is the lowest deck quote a red flag?
Not always, but it is a reason to read it closely. A low price often means something is missing, such as permits, demolition, stair rail or a lower board line. Ask the contractor to confirm in writing what is and is not included.
Can I show one contractor another contractor’s quote?
You can, and it can help a contractor see what scope you are pricing. Some homeowners remove the company name and total first. Ask the contractor to price the same scope rather than simply match a number.
Does a wood deck quote include staining or sealing?
Often it does not, so ask. New pressure-treated lumber typically needs time to dry before it takes stain well. A quote should say whether staining is included and when it would be done.
How long is a deck quote good for?
Many quotes list an expiration date because lumber and decking prices change. If yours does not, ask how long the price holds. Signing after it expires can mean a revised price.
Can I negotiate a deck quote?
Asking for a discount rarely changes much, but changing scope can. A different railing, a simpler layout or a different board line all move the price. See ways to save money when building a new deck for ideas.
What can I do if a deck contractor stops answering after I pay?
Put your concerns in writing, refer to the contract, and keep copies of payments and messages. Florida’s Department of Business and Professional Regulation takes complaints about licensed contractors. Tying the final payment to a finished walkthrough helps avoid this.
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