Deck Installation Cost

HomeGuide puts a new deck at $25 to $50 per square foot installed, and a replacement, including removing and hauling away the old deck, at $30 to $55.

Cost by deck size

Cost by material (installed, per sq ft)

Extras

Deck or patio?

A ground-level paver patio costs $8 to $25 per square foot (Angi). See paver patio cost.

More sizes (HomeGuide)

More materials (installed, per sq ft)

Bamboo $27 – $52, mahogany $30 – $57, tigerwood $40 – $64, Trex composite $45 – $70, aluminum $100 – $125 (HomeGuide).

Deck height and type (per sq ft)

Labor and finishing

Labor runs $11 to $22 per sq ft on a new deck and materials $14 to $28 for pressure-treated pine. Staining costs $1.50 to $4.00 per sq ft and painting $2 to $5; a covered roof adds $10 to $60 per sq ft (HomeGuide).

Repairs, DIY and payback

Most deck repairs run $750 to $2,500. Building a 12x12 deck yourself costs $2,000 to $4,000 in materials. HomeGuide puts the resale return on a new wood deck at 45% to 55%.

Outdoor extras (HomeGuide)

Outdoor lighting runs $80 to $300 per fixture, an outdoor outlet $180 to $350, built-in bench seating $1,000 to $1,500 and a prefabricated pergola $1,450 to $5,570.

Deck materials

• Pressure-treated wood: the most common and lowest-cost option. Needs regular sealing.
• Cedar and redwood: natural rot resistance and an attractive look.
• Composite: wood fibers and plastic. Low maintenance but costs more.
• PVC: fully synthetic and resists moisture.

Design choices that affect cost

• Size and shape.
• Height off the ground.
• Railings, stairs and built-in benches.
• Lighting and covered areas.

Structure matters

The frame, footings and connections carry the load. Decks attached to the house must be properly fastened and flashed to prevent water damage. A permit and inspection help confirm safe construction.

What affects the price

• Material and size.
• Height and number of stairs.
• Railing style.
• Ground conditions.
• Permit fees.

Questions to ask

1. Will you pull a permit?
2. How will the deck be attached to the house?
3. What maintenance will this material need?

In Texas

Strong sun can fade and dry out wood decks quickly in Texas. Composite or regular sealing helps. Shade from a pergola or cover also makes decks more usable in summer.

The building process

1. Design and permit. Most decks need a building permit, especially if they are attached to the house or raised above the ground. Plans show the size, footings, framing, stairs and railings.
2. Layout and footings. Footings are dug to the depth required by local code, often below the frost line in cold climates, and filled with concrete.
3. Ledger. For decks attached to the house, a ledger board is bolted to the house framing with proper flashing to keep water out. Poorly attached ledgers are a leading cause of deck collapses.
4. Framing. Posts, beams and joists are installed with metal connectors and fasteners rated for outdoor use.
5. Decking. Boards are installed with screws or hidden fasteners.
6. Stairs and railings. These must meet code for height, spacing and strength.
7. Inspection.

Pressure-treated, cedar or composite

Pressure-treated lumber is the most affordable. It needs regular cleaning and sealing or staining, and it can crack, warp and splinter over time.

Cedar and redwood are naturally resistant to rot and insects and look beautiful, but cost more and still need regular maintenance.

Composite and PVC decking costs more up front but needs no staining or sealing. It resists rot and insects and does not splinter. It can get hot in direct sun, and some products show scratches or fading.

Even with composite decking, the frame underneath is usually pressure-treated lumber, so it must be built well.

Railings

Railings are a large part of a deck's cost and appearance. Options include wood, composite, aluminum, cable and glass. Cable and glass keep views open but cost more. Codes set minimum railing heights and maximum baluster spacing, so a professional design is important.

Maintaining a wood deck

Clean the deck each year, check for loose boards and fasteners, and reapply sealant or stain every few years. Look for soft spots, rot near the ledger and wobbling railings or stairs. Fixing problems early prevents bigger repairs.

Permits and inspections

A permit is required for most decks, especially those attached to the house, higher than a set height off the ground, or larger than a set area. The inspector usually checks the footings before concrete is poured, the framing before decking covers it, and the finished deck with stairs and railings. Building without a permit can cause problems when you sell the house and may lead to fines or having to remove the deck.

Hidden fasteners vs. face screws

Hidden fastener systems clip boards together from the side, leaving a smooth surface with no visible screws. They cost more and take longer to install. Face screws are faster and cheaper, and color-matched screws blend in with composite boards. Some composite products are grooved for a specific hidden fastener system.

Lighting and extras

Post cap lights, stair lights and under-rail lights improve safety and make the deck usable at night. Built-in benches, planters, pergolas and privacy screens add function but increase cost. Planning wiring for lighting before the decking goes down is easier than adding it later.

Ask about the warranty on labor. Keep the permit records.

Deck stairs

Stairs need a solid landing at the bottom, such as a concrete pad or pavers, and consistent riser heights so nobody trips. Codes set rules for riser height, tread depth, handrails and lighting.

Sources

1. HomeGuide: How Much Does It Cost to Build a Deck? (Feb 10, 2026)
2. Angi: How Much Does a Paver Patio Cost to Install? (updated Aug 3, 2026)