20×16 Deck Cost in Wyoming
A 20×16 (320 sqft) deck in Wyoming costs $20,480-$32,640 in mid-tier composite with the state's 1.28× labor multiplier (West). A 16×20 deck (320 sqft) is the canonical 'mid-large' deck — fits a full sectional, a 6-seat dining table, and a grill island. Wyoming labor 1.28× national. Frost depth 42-48″.
5 finish tiers — 20×16 in Wyoming
National $/sqft × Wyoming's 1.28× labor multiplier × 320 sqft = total installed cost. Materials + labor + standard railing included.
Excludes permit ($218-$537 typical in Wyoming), demolition (if replacing), and exceptional framing for 42″ frost depth. WY permits $150-260.
20×16 framing notes for Wyoming
Wyoming considerations
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FAQ — 20×16 deck in Wyoming
How much does a 20×16 deck cost in Wyoming?▾
In Wyoming, a 20×16 (320 sqft) deck costs $10,240-$16,320 in pressure-treated, $20,480-$32,640 in mid-range composite (Trex Transcend / Fiberon Sanctuary), and $30,720-$45,120 in luxury composite/PVC (TimberTech AZEK / Trex Signature). Numbers reflect Wyoming's 1.28× labor multiplier on 2026-Q1 retail.
What's the cheapest way to build a 20×16 deck in Wyoming?▾
Cheapest = ground-level pressure-treated pine with no railings (where exempt under 30″ height) — ~$8,192-$12,288 in Wyoming. Add stairs + railings + above-grade framing and the build goes to ~$11,469-$16,384. DIY saves 30-50% on labor but requires permit + inspection coordination yourself.
How long does it take to build a 20×16 deck in Wyoming?▾
Permit timeline in Wyoming: 2-6 weeks depending on jurisdiction. Construction time for a 20×16: pro crew = 5-8 days for framing + boards + railings + stairs. DIY = 3-5 weekends for experienced DIYer. Allow extra time for permit approval + inspections.
What framing do I need for a 20×16 deck in Wyoming?▾
IRC R507-compliant framing for a 20×16 deck typically uses 2×8 joists at 16″ OC for spans up to 12 ft, 2×10 joists for spans 12-16 ft. Wyoming's frost depth is 42″ — footings must extend below that per IRC R403.1.4. Sonotube 10-12″ diameter at 42″ depth is typical. Verify with your local building department.
Is composite worth it for a 20×16 deck in Wyoming?▾
Over 25 years in Wyoming: PT pine = ~$12,288 install + ~$25,600 maintenance (stain every 2-3 yr) = $37,888 total. Mid composite = ~$23,757 install + $0 maintenance = $23,757 total. Composite wins by 59-81% over 25-yr lifecycle PLUS better resale value in Wyoming's market.