🏗️ Deck Cost Calculator
Calculate deck construction costs and materials needed
Enter 0 for ground-level deck
How to Use This Calculator
Enter Deck Dimensions
Input the deck length and width in feet. Enter deck height (0 for ground-level decks).
Select Material Type
Choose your decking material: pressure-treated wood, cedar, composite, hardwood, PVC, or aluminum.
Select Options
Choose whether to include railings, stairs, lighting, and installation.
Calculate and Review
Click "Calculate Cost" to see total cost, material costs, installation costs, and cost breakdown. Use this for budgeting and planning.
Formula
Deck Area = Length × Width
Material Cost = (Area × Material Cost/sq ft × 1.10) + Framing + Hardware + Railings + Stairs + Lighting
Total Cost = Material Cost + Installation + Permits
Example: 20 ft × 12 ft deck, pressure-treated wood, 2 ft high, with railings and stairs
Step 1: Area = 20 × 12 = 240 sq ft
Step 2: Decking material = 240 × $3.50 × 1.10 = $924
Step 3: Framing = 240 × $3.50 = $840
Step 4: Hardware = 240 × $0.50 = $120
Step 5: Railings = 64 ft × $30 = $1,920
Step 6: Stairs = 3 × $200 = $600
Step 7: Material total = $924 + $840 + $120 + $1,920 + $600 = $4,404
Step 8: Installation = 240 × $12 = $2,880
Step 9: Permits = $300
Step 10: Total = $4,404 + $2,880 + $300 = $7,584
Step 11: Cost per sq ft = $7,584 / 240 = $31.60/sq ft
About Deck Cost Calculator
The Deck Cost Calculator is an essential tool for homeowners, contractors, and builders who need to estimate deck construction costs. This calculator eliminates guesswork by providing cost estimates based on deck dimensions, material type, height, railings, stairs, and installation requirements, helping you budget accurately for deck projects.
When to Use This Calculator
- Project Budgeting: Estimate costs for new deck construction
- Material Planning: Calculate material quantities and costs
- Cost Comparison: Compare costs for different decking materials
- Installation Planning: Estimate total costs including installation
- Quote Verification: Verify contractor quotes against estimates
Why Use Our Calculator?
- ✅ Accurate Estimates: Cost estimates based on current market prices
- ✅ Multiple Materials: Supports pressure-treated, cedar, composite, hardwood, PVC, and aluminum
- ✅ Complete Costs: Includes materials, framing, railings, stairs, lighting, and installation
- ✅ Cost Breakdown: Shows detailed cost breakdown for all components
- ✅ Time Savings: Instant calculations eliminate manual math
Understanding Deck Costs
Material Costs: Decking material costs vary significantly by type. Pressure-treated wood costs $3-5/sq ft, while composite decking costs $10-15/sq ft. Premium materials like aluminum can cost $15-20/sq ft. Costs include decking, framing, hardware, railings, stairs, and lighting.
Installation Costs: Installation typically costs $8-15 per square foot depending on deck height, material type, and complexity. Higher decks and premium materials cost more. Installation includes labor, equipment, and professional installation.
Total Costs: Total deck costs typically range from $15-50 per square foot depending on material type, height, and features. Simple ground-level pressure-treated decks cost $15-25/sq ft, while elevated composite decks with railings cost $40-50/sq ft installed.
Tips for Best Results
- Get Multiple Quotes: Actual prices vary by location and contractor—get 3-5 quotes
- Consider Longevity: Premium materials cost more upfront but last longer
- Check Local Prices: Prices vary by region—verify with local contractors
- Include All Costs: Don't forget permits, disposal, and site preparation
- Plan for Maintenance: Budget for sealing and maintenance for wood decks
Frequently Asked Questions
How much does a deck cost?
Deck costs typically range from $15-50 per square foot installed, depending on material type, height, and features. A basic 20×12 ft pressure-treated deck (240 sq ft) costs $3,600-6,000, while a composite deck with railings costs $9,600-12,000. Costs vary significantly by location.
Which decking material is most economical?
Pressure-treated wood is typically the most economical ($3-5/sq ft material, $15-25/sq ft installed). Composite decking costs more ($10-15/sq ft material) but requires less maintenance. Consider longevity and maintenance costs when choosing.
How much does deck installation cost?
Installation typically costs $8-15 per square foot depending on deck height, material type, and complexity. Ground-level decks cost $8-10/sq ft installed, while elevated decks cost $10-15/sq ft. Premium materials and complex designs cost more.
Do I need railings for my deck?
Railings are typically required for decks over 30 inches high (building codes vary). Railings cost $20-40 per linear foot installed. The calculator includes railing costs when selected.
How long does a deck last?
Well-maintained pressure-treated decks last 15-20 years, while composite decks last 25-30 years. Aluminum decks can last 30-50 years. Regular maintenance extends lifespan significantly. Choose materials based on longevity and maintenance preferences.