The cost to build a 14×20 deck (280 sq ft) typically ranges from a few thousand dollars to well over ten thousand, depending on materials, labor, and site conditions. Main cost drivers include material type, labor hours, permit requirements, and any added features. This guide presents practical price ranges and real-world scenarios to help buyers plan a budget and compare options.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Deck Size | $0 | $0 | $0 | Fixed at 14×20; 280 sq ft |
| Materials | $2,000 | $6,000 | $14,000 | Wood, composite, or PVC; per sq ft varies by type |
| Labor | $3,000 | $7,500 | $14,000 | Includes framing, decking, railing, and finishing |
| Permits | $0 | $1,000 | $2,000 | Depends on city/county |
| Delivery/Disposal | $200 | $900 | $2,000 | Materials and debris handling |
| Finish & Hardware | $200 | $1,200 | $3,000 | Fasteners, stamps, sealants, brackets |
| Warranty & Overhead | $150 | $1,200 | $2,000 | Manufacturer or contractor coverage |
| Total Project | $5,550 | $17,700 | $37,000 | Assumes varied material choice and scope |
Overview Of Costs
Typical price ranges reflect material choice and labor intensity. A basic pressure-treated wood deck tends to be on the lower end, while composite or hardwood with decorative railings drives the high end. Cost estimates assume ground-level installation with standard access and no major site prep. Per-square-foot pricing generally falls between $12 and $60, with total cost drawing from both material and labor lines.
Cost Breakdown
| Category | Materials | Labor | Permits | Delivery/Disposal | Taxes | Total |
|---|---|---|---|---|---|---|
| Wood/Composite Type | $2.00–$8.00/ft² | — | — | — | — | Depends on choice |
| Framing & Decking | $3,000–$7,500 | $0–$0 | — | — | — | Subtotal |
| Railings & Stairs | $1,000–$5,000 | $1,000–$4,000 | — | — | — | Subtotal |
| Finish, Sealer, Hardware | $200–$1,500 | $0–$1,500 | — | — | — | Subtotal |
| Permits & Inspections | — | — | $0–$2,000 | — | — | Subtotal |
| Delivery & Disposal | — | $200–$900 | — | $0–$400 | — | Subtotal |
| Taxes | — | — | — | — | Varies | Subtotal |
What Drives Price
Material choice is the largest driver: pressure-treated wood remains cheapest, while high-end composite or tropical hardwoods raise costs. Labor intensity depends on site access, ground slope, and railing complexity. Deck height, stair runs, and under-deck storage needs can materially alter totals. Regional labor rates and permit requirements also influence the final price, as discussed in regional pricing notes.
Factors That Affect Price
Key pricing variables include material type, deck height, and span. For example, a 14×20 deck with a mid-range composite often costs more due to hidden fasteners and longer warranty expectations. A basic treated-wood deck with simple rails is noticeably cheaper, but may require more maintenance over time. Assumptions: standard soil, level grade, and typical railing style.
Ways To Save
Cost-saving strategies include choosing a less expensive material, simplifying railing design, and performing framing work yourself if feasible. Scheduling work in the off-season or locking in prices with a contractor ahead of time can help reduce labor costs. Budget-conscious builders may accept longer project timelines in exchange for lower hourly rates.
Regional Price Differences
Prices vary across U.S. regions due to labor and material markets. In the Northeast, higher permit and wage costs can push totals upward by 10–20% versus the Midwest. The West Coast often includes higher material premiums and stricter inspections, while the South may offer lower labor costs but higher humidity-related material choices. Note: regional deltas commonly range ±10–25% depending on local conditions.
Labor, Hours & Rates
Labor typically accounts for a large share of the budget. A crew might take 120–180 hours for demolition (if needed), framing, decking, and railing on a 280 sq ft project, depending on complexity. Hourly rates commonly fall in the $40–$70 range for carpenters, with higher rates for specialty work or permits. data-formula=”labor_hours × hourly_rate”> Realistic planning should include 2–3 weeks of scheduling in busy markets.
Real-World Pricing Examples
Below are three scenario cards to illustrate typical outcomes. Assumptions: level lot, standard ground preparation not included, and average weather during installation.
Basic Deck (Pressure-Treated Wood, Simple Rail)
Specs: 14×20, basic frame, standard railing, no stairs. Labor: 110 hours; Materials: $2,800; Total: $6,200–$8,800. Per-unit: $22–$31/ft².
Assumptions: region, caps on materials, standard crew
Mid-Range Deck (Composite, Basic Rails)
Specs: 14×20, mid-grade composite decking, mid-range railing. Labor: 140 hours; Materials: $5,000–$8,500; Total: $9,500–$14,500. Per-unit: $34–$52/ft².
Assumptions: zoning permit required
Premium Deck (Tropical Hardwood, Custom Rails)
Specs: 14×20 with decorative posts, premium fasteners, sealant. Labor: 170 hours; Materials: $9,000–$14,000; Total: $16,000–$28,000. Per-unit: $57–$100/ft².
Assumptions: extended warranty desired
What To Expect With Extras
Hidden costs may include permit fees, soil remediation, drainage adjustments, or add-ons such as under-deck lighting, built-in seating, or planters. Surprises can appear if a site has poor soil, requires drainage work, or requires a higher railing code. Budget additional 5–15% for contingencies.
Pricing At A Glance
Low-end projects thrive with treated lumber and minimal features; mid-range projects favor composite decking and standard railings; high-end projects lean toward tropical hardwoods and custom design work. The total price for a 14×20 deck commonly spans from about $6,000 to more than $30,000, with most projects landing in the $9,000–$15,000 band for typical homeowners seeking durable, low-maintenance options.