How to Quote a Deck Build: Materials, Labor & Markup

Deck Builds: A Straightforward Quote (If You Get the Details Right)

Decks are one of the more predictable projects to quote — the scope is visible, the materials are measurable, and there's less hidden behind walls. But that simplicity is a trap if you under-quote. Footings, railing, stairs, and permits add up fast. This guide breaks down every line item in a deck quote so nothing slips through.

Line-by-Line Deck Quote Breakdown

1. Design & Permits

• Site survey and layout
• Building permit (required in most municipalities for attached decks)
• Engineered drawings (if required by code)
• Typical range: $200–$1,500

Don't absorb permit costs. Break them out so the client sees they're a code requirement, not your markup.

2. Footings & Foundation

• Dig and pour concrete footings (or helical piles)
• Post brackets and hardware
• Number of footings depends on deck size and span
• Typical range: $100–$250 per footing (materials and labor)

A 12x16 deck typically needs 6–9 footings. Always check local frost depth requirements — shallow footings fail inspections and cost you a redo.

3. Framing

• Ledger board (attached to house with lag bolts and flashing)
• Beam(s), joists, and blocking
• Joist hangers and structural hardware
• Typical range: $1,500–$4,000 for a 200 sq ft deck

4. Decking Material

This is where material choice drives the quote:

• Pressure-treated lumber: $2–$4/sq ft material, most common budget option
• Cedar: $4–$8/sq ft material, natural look, needs maintenance
• Composite (Trex, TimberTech): $6–$12/sq ft material, low maintenance, higher upfront cost
• PVC decking: $8–$14/sq ft material
• Installation labor: $4–$8/sq ft regardless of material

Quote material and labor separately. Clients want to see the material cost so they can compare options.

5. Railing

• Code requires railing for decks 30" or more above grade
• Wood railing: $20–$35/linear foot (installed)
• Composite railing: $30–$60/linear foot (installed)
• Metal/cable railing: $50–$120/linear foot (installed)
• A 200 sq ft deck typically has 40–55 linear feet of railing

Railing is often 15–25% of the total deck cost. Don't bury it in the decking line item — it deserves its own section.

6. Stairs

• Stringers (cut or prefab), treads, risers
• Stair railing and posts
• Typical range: $500–$2,000 per staircase

7. Staining, Sealing & Finishing

• Stain or seal (pressure-treated and cedar only — composite doesn't need it)
• Typical range: $1.50–$3/sq ft

Some contractors include first stain in the build quote; others quote it separately. Either way, make it visible.

8. Cleanup & Final Inspection

• Debris removal and site cleanup
• Final building inspection (if permit was pulled)
• Typical range: $200–$500

Labor: How to Price Deck Building

Deck labor is commonly priced per square foot:

• Basic deck (ground level, simple layout): $8–$15/sq ft all-in labor
• Elevated deck (4+ ft, stairs, complex railing): $15–$25/sq ft
• Multi-level or curved: $20–$35/sq ft

These ranges include framing and decking labor but not footings or railing (quote those separately). For a detailed walkthrough on calculating labor rates, see how to price labor for contracting jobs.

Sample Deck Quote

12x20 elevated composite deck with railing and one staircase:

• Permits & Design: $600
• Footings (8 footings): $1,600
• Framing: $3,200
• Composite Decking (240 sq ft at $16/sq ft installed): $3,840
• Composite Railing (50 LF at $45/LF): $2,250
• Stairs: $1,200
• Cleanup & Inspection: $350
• Project Total: $13,040

Frequently Asked Questions

How much does it cost to build a deck?

A basic pressure-treated deck runs $15–$25/sq ft all-in. Composite decks range from $25–$45/sq ft. A 200 sq ft composite deck with railing and stairs typically costs $10,000–$18,000. High-end builds with premium materials and complex layouts can exceed $25,000.

Wood or composite — which should I quote?

Quote both if the client hasn't decided. Show the material cost difference side by side and mention the maintenance trade-off: wood is cheaper upfront but needs staining every 1–3 years; composite costs more but requires almost no maintenance.

Do I need a permit to build a deck?

In most areas, yes — especially for attached decks or decks more than 30" above grade. Always check local code. Include permit costs in your quote rather than surprising the client later.

How long does it take to build a deck?

A standard deck (200–300 sq ft) takes 3–7 days for a crew of 2–3. Add time for permit approval, footing inspections, and weather delays. Composite takes slightly longer to install than wood due to hidden fastener systems.

Should I include staining in my deck quote?

For wood decks, yes — either as a line item or an optional add-on. New pressure-treated lumber should dry 1–3 months before staining, so you may quote it as a follow-up visit. Composite and PVC decks don't need stain.

Skip the spreadsheet. Renoz's AI quote generator builds itemized deck quotes in minutes — wood or composite, with railing, stairs, and permits all broken out. See all features.