DeckMath
Rhode Island · 20×14 (280 sqft) · 2026-Q1 retail

20×14 Deck Cost in Rhode Island

A 20×14 (280 sqft) deck in Rhode Island costs $17,080-$27,440 in mid-tier composite with the state's 1.22× labor multiplier (Northeast). A 14×20 deck (280 sqft) accommodates dining + lounge zones — popular mid-size build. Rhode Island labor 1.22× national.

280 sqft1.22× laborFrost 42snow climate68 lf perimeter
Area
280 sqft
20×14
PT pine (budget)
$8,680-13,720
$31-49/sqft installed
Mid composite
$17,080-27,440
$61-98/sqft installed
Luxury PVC
$25,760-37,520
$92-134/sqft installed

5 finish tiers — 20×14 in Rhode Island

National $/sqft × Rhode Island's 1.22× labor multiplier × 280 sqft = total installed cost. Materials + labor + standard railing included.

Tier
$/sqft
Total low
Total high
Budget · Pressure-treated
PT pine
$31-$49
$8,680
$13,720
Mid · Cedar / premium PT
Cedar
$43-$67
$12,040
$18,760
Premium · Mid composite
Trex Transcend, Fiberon Sanctuary
$61-$98
$17,080
$27,440
Luxury · Premium composite
TimberTech AZEK, Trex Signature
$92-$134
$25,760
$37,520
Exotic · Tropical hardwood
IPE, Cumaru
$110-$171
$30,800
$47,880

Excludes permit ($240-$592 typical in Rhode Island), demolition (if replacing), and exceptional framing for 42″ frost depth. RI permits $200-340.

20×14 framing notes for Rhode Island

Joist size
2×10 @ 16″ OC
Span 20 ft requires 2×10 SYP or PT pine for IRC R507.6 compliance. Check Joist Span Calculator for exact spans by species + spacing.
Beam configuration
2-3 beams
A 20×14 deck typically needs 2-3 beams depending on whether you can drop joists onto the beam (1) or hang them flush (2+).
Post count
6 posts
6×6 PT posts at 6-post layout typical. Footings extend below 42″ frost line.
Footings
6 × 42″ deep
Sonotube 10-12″ diameter at 42″ depth per IRC R403.1.4. Concrete budget: ~$329.
Decking
462 lf
280 sqft × 1.65 lf/sqft = 462 lf of deck boards at 16″ joist OC. Add 5-7% waste for cuts.
Railing
68 lf perimeter
68 lf of railing (~$36/lf mid composite, ~$22/lf wood). Stairs need 2 extra handrails (1 each side).

Rhode Island considerations

Labor multiplier
1.22×
Northeast region labor pricing on all installed costs.
Frost depth
42″
Footings extend below frost line per IRC R403.1.4. Standard footing depth.
Climate
snow
Freeze-thaw cycles favor PVC over composite where budget allows.
Top metros
Providence · Warwick
Major metros drive installer availability + pricing pressure.
Permit fee
$240-$592
RI permits $200-340.
Region
Northeast
Northeast regional pricing applied. Multiply national $/sqft by 1.22× for Rhode Island installed cost.

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FAQ — 20×14 deck in Rhode Island

How much does a 20×14 deck cost in Rhode Island?

In Rhode Island, a 20×14 (280 sqft) deck costs $8,680-$13,720 in pressure-treated, $17,080-$27,440 in mid-range composite (Trex Transcend / Fiberon Sanctuary), and $25,760-$37,520 in luxury composite/PVC (TimberTech AZEK / Trex Signature). Numbers reflect Rhode Island's 1.22× labor multiplier on 2026-Q1 retail.

What's the cheapest way to build a 20×14 deck in Rhode Island?

Cheapest = ground-level pressure-treated pine with no railings (where exempt under 30″ height) — ~$6,832-$10,248 in Rhode Island. Add stairs + railings + above-grade framing and the build goes to ~$9,565-$13,664. DIY saves 30-50% on labor but requires permit + inspection coordination yourself.

How long does it take to build a 20×14 deck in Rhode Island?

Permit timeline in Rhode Island: 2-6 weeks depending on jurisdiction. Construction time for a 20×14: 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 20×14 deck in Rhode Island?

IRC R507-compliant framing for a 20×14 deck typically uses 2×8 joists at 16″ OC for spans up to 12 ft, 2×10 joists for spans 12-16 ft. Rhode Island'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 20×14 deck in Rhode Island?

Over 25 years in Rhode Island: PT pine = ~$10,248 install + ~$21,350 maintenance (stain every 2-3 yr) = $31,598 total. Mid composite = ~$19,813 install + $0 maintenance = $19,813 total. Composite wins by 59-81% over 25-yr lifecycle PLUS better resale value in Rhode Island's market.

Compare Rhode Island brand pricing for a 20×14

Same 20×14 in other states