Deck Cost Calculator

Estimate the cost to build a deck in 2026. Compare pressure-treated wood, cedar, composite, PVC, and Ipe hardwood. Includes railing, stairs, add-ons, and regional pricing. Toggle between DIY and professional installation.

14'
8'30'
20'
8'30'
Deck Area: 280 sq ft (14' × 20')
Number of Steps$75/step
4

Estimated Installed Cost

$9,190

Range: $7,812$10,569

Based on Midwest pricing

$33/sqft · 280 sq ft (14' × 20')

Cost Breakdown

Decking$7,000 (76%)
Railing$1,890 (21%)
Stairs$300 (3%)

DIY Alternative

Save $5,295 (58%) by building the deck yourself

DIY estimate: $3,895

Material Comparison

OptionEst. Costvs. Cheapest
Pressure-Treated WoodSelectedPopular
$7,000Lowest
Cedar
$9,800+$2,800 (+40%)
Redwood
$11,200+$4,200 (+60%)
Composite (Trex / TimberTech)
$12,600+$5,600 (+80%)
PVC / Vinyl
$14,000+$7,000 (+100%)
Ipe (Tropical Hardwood)
$18,200+$11,200 (+160%)

How We Calculate Deck Costs

Our deck calculator uses 2026 contractor pricing data for professional installation and current material prices for DIY projects. The base cost is calculated per square foot based on your selected decking material and deck shape.

Complex shapes like L-shaped (+15%), wraparound (+25%), and multi-level (+30%) add to the base cost due to extra framing, angled cuts, and labor. Railing costs are calculated per linear foot on three sides (the fourth side typically attaches to the house).

DIY estimates include materials only (roughly 40% of professional cost). Professional estimates include all labor, materials, footings, and cleanup. Regional multipliers adjust for local labor rates and material availability.

Frequently Asked Questions

How much does it cost to build a deck in 2026?
The average cost to build a deck ranges from $4,000 to $15,000 for a standard 200-300 sq ft deck. Pressure-treated wood costs $25/sqft installed, composite runs $45/sqft, and premium Ipe hardwood can reach $65/sqft. Total cost depends on materials, size, shape, railing, and your region.
Is a composite deck worth the extra cost?
Composite decking costs 60-80% more upfront than pressure-treated wood ($45/sqft vs $25/sqft). However, composite requires almost no maintenance — no annual staining, no splinters, no rot. Over 20 years, composite typically costs less when you factor in the $500-$800 you'd spend staining a wood deck every 1-2 years. Composite also lasts 25-30 years vs 15-20 for wood.
What is the cheapest deck material?
Pressure-treated pine is the cheapest decking material at about $25/sqft installed. For a 280 sq ft deck (14×20), that's roughly $7,000. Cedar costs 40% more at $35/sqft, while composite runs $45/sqft. If you go DIY with pressure-treated wood, materials alone run about $10/sqft.
How much does deck railing cost?
Deck railing costs $35-$120 per linear foot installed depending on material. Wood railing is cheapest at $35/lf, composite runs $50/lf, aluminum is $60/lf, cable railing costs $85/lf, and glass panels are the most expensive at $120/lf. A typical 280 sq ft deck needs about 50-60 linear feet of railing.
Does a deck increase home value?
Yes — a wood deck recoups about 83% of its cost at resale, while composite decks offer about 68% ROI. A $15,000 wood deck typically adds $12,000-$13,000 to home value. ROI is highest in warmer climates and areas where outdoor living space is in demand.
Do I need a permit to build a deck?
Most cities require permits for decks that are attached to the house or more than 30 inches above ground. Permits typically cost $150-$500. Ground-level floating decks under 200 sq ft may be exempt in some jurisdictions. Always check local building codes before starting.
Can I build a deck myself to save money?
DIY deck building can save 50-60% on labor costs. A 280 sq ft pressure-treated deck costs about $7,000 professionally but only $2,800-$3,500 in materials for DIY. However, you'll need carpentry skills, proper tools, and 3-5 weekends of work. Mistakes in framing or footings can be costly to fix and may affect structural safety.

Deck Costs by City

Related Calculators