How to Price a Deck Build (Wood, Composite, and Pergolas)
By Fabio Freire, Founder & General Contractor at EZ-Estimates. Published 2026-04-07.
How to Price a Deck Build (Wood, Composite, and Pergolas)
Decks are one of the most profitable projects for contractors who price them correctly. The challenge is that deck costs vary dramatically based on material, size, height, and complexity.
Here is how to estimate deck builds accurately.
Step 1: Define the Scope
Get clear on what the homeowner wants:
- Deck square footage
- Height off ground (ground level vs elevated)
- Material preference (pressure treated, cedar, composite, PVC)
- Railing type and style
- Stairs (number of steps, location, width)
- Built-in features (benches, planters, pergola, privacy screens)
- Lighting
- Permit requirements
Contractors in Seattle and Portland build more covered and pergola-attached decks due to rain. Markets like Austin and Nashville see more open decks with shade structures.
Step 2: Calculate the Structure
The structural framing is the foundation of your estimate:
- Posts: Count and size (4x4, 6x6) based on height and load
- Beams: Length, size, and quantity
- Joists: Spacing (12" or 16" OC), length, and quantity
- Ledger board: If attached to house
- Footings: Number and type (concrete piers, sonotubes, helical piles)
- Hardware: Joist hangers, post bases, brackets, lag bolts, structural screws
Framing costs are similar regardless of decking material. The structure is the structure.
Step 3: Price Decking Material
This is where the estimate swings dramatically:
- Pressure treated pine: $2 to $4 per sq ft (material only)
- Cedar: $4 to $8 per sq ft
- Redwood: $6 to $12 per sq ft
- Composite (Trex, TimberTech, Fiberon): $6 to $14 per sq ft
- PVC (Azek, TimberTech): $8 to $16 per sq ft
- Ipe/tropical hardwood: $10 to $25 per sq ft
Add 10% to 15% waste for decking. Picture frame borders and diagonal patterns increase waste.
Step 4: Price Railings
Railings can cost as much as the deck itself on elevated builds:
- Pressure treated wood railing: $15 to $25 per linear foot
- Cedar railing: $25 to $40 per linear foot
- Composite railing: $30 to $60 per linear foot
- Aluminum railing: $40 to $80 per linear foot
- Cable railing: $60 to $120 per linear foot
- Glass panel railing: $80 to $200+ per linear foot
Measure all linear feet of railing including stairs. Post count affects hardware costs.
Step 5: Price Stairs
Deck stairs include:
- Stringers: 2 to 4 per stair run depending on width
- Treads: Same material as decking
- Risers: Optional, depends on style
- Hardware: Stringer brackets, screws
- Landing pad: Concrete or paver pad at bottom
Cost per step: $50 to $150 for wood, $75 to $200 for composite. Wide or curved stairs cost significantly more.
Step 6: Calculate Labor
Deck labor varies by complexity:
- Ground level deck (simple): 12 to 20 hours for a 200 sq ft deck
- Elevated deck (8+ ft): 24 to 40+ hours for a 300 sq ft deck
- Pergola addition: 8 to 16 hours
- Stairs (per flight): 4 to 8 hours
- Railing installation: 2 to 4 hours per 20 linear feet
Deck and fence builders typically run 2 to 3 person crews. Your labor rate per man-hour should include wages, taxes, workers comp, and tools.
Step 7: Include Supporting Costs
- Permits: $100 to $500+ (most jurisdictions require permits for decks)
- Engineering drawings: If required for elevated decks ($300 to $1,000)
- Excavation: For footings, especially in rocky or clay soil
- Concrete: For footings and pads
- Disposal: Old deck demo and hauling if replacement
- Stain or seal: If finishing wood deck ($2 to $4 per sq ft)
Step 8: Apply Markup
Deck building markup should be 35% to 50%:
- Equipment (miter saws, drills, levels, scaffolding)
- Insurance (deck falls and structural work carry liability)
- Truck and trailer
- Marketing
- Warranty
- Profit
Composite and premium material decks can carry higher margins because the perceived value is higher.
Why Spreadsheet Deck Estimates Are Losing You Money in 2026
Deck builds have more line items than most contractors realize. Posts, beams, joists, decking, fasteners, railings, stairs, footings, hardware, permits. A typical deck estimate has 30 to 50 individual line items. On a spreadsheet, that is a nightmare.
The 2026 deck market reality:
- Composite prices are stabilizing but lumber is volatile. Pressure treated lumber has swung 30%+ in the last 18 months. If your spreadsheet template has last season's prices, your margin is already wrong before you start building
- Homeowners want options. "What does it cost in pressure treated vs composite vs PVC?" That is 3 completely different estimates. On a spreadsheet, you are spending 3 hours just to give them choices. Most contractors give one option and lose to the guy who gave three
- Permits and engineering are getting stricter. In 2026, more municipalities require engineered drawings for elevated decks. If your estimate does not include engineering costs ($300 to $1,000), you are eating that expense
- Deck season is short. In northern markets like Minneapolis and Ottawa, you have 6 to 7 months of building season. Every day spent on spreadsheet estimates is a day you are not building and earning
EZ-Estimates lets deck builders describe the project: "16x20 composite deck, 6 feet elevated, aluminum railing, 8-step staircase with landing, pergola attachment." The AI generates a complete estimate with structural framing, decking, railings, stairs, footings, hardware, permits, labor, and markup in minutes. Want to show a cedar option too? Add it in 30 seconds.
The deck contractor who sends 3 professional options the same day as the site visit closes more jobs at higher prices. That is the 2026 advantage.
The Bottom Line
Deck pricing is structure + material + railing + stairs + labor + extras. Every deck is different, but the formula is the same. Use EZ-Estimates to build detailed deck proposals in minutes and present options that let homeowners choose their budget.
Start your free trial of EZ-Estimates and close your next deck project faster.