PVC Decking in Boise
100% synthetic cellular PVC decking — zero moisture absorption, zero wood fiber, zero maintenance. AZEK and TimberTech Advanced PVC installation for Boise and Treasure Valley homeowners who want the longest-lasting deck material available.
PVC decking is made from 100% synthetic cellular polyvinyl chloride — the same base polymer used in plumbing pipe, vinyl siding, and medical-grade tubing. Unlike composite decking, which blends recycled wood fibers with plastic polymers, PVC decking contains zero wood fiber content. This distinction is the single most important factor in its performance: without wood fiber, PVC cannot absorb moisture. At all. Ever.
The manufacturing process creates a cellular core structure — millions of tiny closed cells that trap air inside the board, making PVC decking the lightest weight synthetic decking option available. A 16-foot PVC deck board weighs approximately 1.7 pounds per linear foot, compared to 2.2–2.8 pounds for a comparable composite board. The lighter weight reduces load on the substructure and makes handling easier during installation.
A protective cap layer — typically a co-extruded polymer shell with UV inhibitors, scratch-resistant additives, and realistic wood-grain embossing — wraps the entire board on all four sides. This cap provides the color, texture, and stain resistance that define modern PVC decking's premium appearance.
Leading PVC Decking Brands
AZEK
The premium benchmark in PVC decking. AZEK uses Alloy Armour Technology — a proprietary polymer cap with titanium dioxide UV stabilizers that resists fading, scratching, and staining at a level no competitor has matched. Multiple product lines (Harvest, Vintage, Timber) cover every price point and aesthetic.
TimberTech Advanced PVC
Sister brand to AZEK under the same parent company. Shares the same 100% cellular PVC core formulation with a slightly streamlined color palette. TimberTech Advanced PVC delivers identical structural and moisture performance at a 5–10% lower price point, making it the value leader in the PVC category.
Composite and PVC decking are both “synthetic” alternatives to wood, but they are fundamentally different materials with different performance characteristics. Here is how they compare across every metric that matters for Boise homeowners.
| Property | PVC Decking | Composite Decking |
|---|---|---|
| Composition | 100% synthetic cellular PVC | Wood fiber + recycled plastic |
| Moisture Absorption | 0% — zero | 1–2% (capped composites) |
| Weight (per linear ft) | ~1.7 lbs (lighter) | ~2.2–2.8 lbs |
| Heat Retention | Stays cooler in direct sun | Hotter underfoot |
| Stain Resistance | Superior — non-porous surface | Good — minor absorption possible |
| Cost (installed) | $45–$62 / sq ft | $35–$55 / sq ft |
| Cost Premium | 15–25% more than composite | Baseline synthetic price |
| Warranty (structural) | Lifetime limited | 25–50 years |
| Fade Warranty | 50 years | 25–30 years |
| Mold / Mildew Risk | None — no organic content | Low — wood fiber can harbor mold |
When Is PVC Worth the Premium?
PVC decking justifies its higher price in three scenarios: (1) high-moisture environments — pool surrounds, hot tub areas, lakefront properties — where zero moisture absorption prevents mold and structural damage; (2) outdoor kitchens and dining areas where spill resistance eliminates staining from food, wine, and grease; and (3) homeowners who want the absolute longest warranty coverage and plan to stay in their home for 15+ years, allowing the upfront premium to be amortized over decades of zero-maintenance ownership.
All pricing below reflects fully installed costs in the Boise market, including decking material, hidden fasteners, substructure (pressure-treated frame, footings to 36″ frost line), and labor. Railing, stairs, and specialty features are additional.
Per-Square-Foot Pricing by Product Line
| Product Line | Installed Cost | Position |
|---|---|---|
| TimberTech Advanced PVC | $45 – $55 / sq ft | Value leader in PVC category |
| AZEK Harvest | $48 – $58 / sq ft | Most popular AZEK line |
| AZEK Vintage | $52 – $62 / sq ft | Premium texture, deepest wood grain |
Complete Deck Project Estimates
Total project cost for a standard rectangular deck with pressure-treated substructure, hidden fasteners, and AZEK Harvest decking. Railing, stairs, and permits are included in these estimates.
12′ × 16′ (192 sq ft)
$8,000 – $12,500
Entry-level PVC deck
Most Popular
16′ × 20′ (320 sq ft)
$12,500 – $20,000
Mid-range family deck
20′ × 24′ (480 sq ft)
$18,000 – $28,000+
Large entertainment deck
* Prices are estimates based on 2026 Boise-area material and labor rates. Actual project cost varies with site conditions, elevation changes, access, and design complexity. Contact Iron Crest for a free, project-specific estimate.
PVC decking is the highest-performing synthetic deck material available, but it is not the right choice for every project. Here is an honest assessment of PVC's strengths and limitations as they apply specifically to Boise and the Treasure Valley.
Advantages
- Zero moisture absorption — no rot, mold, or mildew, ever
- Stays cooler than composite in direct Boise sun
- Lightest weight synthetic option — easier on substructure
- Superior stain resistance — no food or drink staining
- Longest warranty coverage of any decking material (lifetime structural, 50-year fade)
- Fade-resistant at Boise’s 2,730-foot elevation UV levels
- Class A fire rating — important for Boise WUI zone properties
- Will not splinter, crack, or check like wood
Limitations
- Highest upfront cost of any decking material (15–25% more than composite)
- Can appear “plastic” in certain lighting angles
- Limited brand options — primarily AZEK and TimberTech Advanced PVC
- Higher thermal expansion requires careful gapping at installation
- Fewer color choices than composite lines (Trex, Fiberon offer more options)
- Cannot be sanded or refinished if deeply scratched
Boise's high-desert climate — 2,730-foot elevation, 200+ sunny days, temperature swings from −10°F to 105°F+, and a 36-inch frost line — creates specific performance demands that PVC decking is uniquely engineered to handle.
Freeze-Thaw Immunity
Boise averages 120+ days per year where temperatures cross the 32°F threshold. Every freeze-thaw cycle forces absorbed moisture to expand and contract inside porous materials, slowly breaking them apart from within. Because PVC absorbs exactly 0% moisture, freeze-thaw cycles have zero effect on PVC deck boards. This is the single greatest advantage PVC holds over wood and composite in Boise's climate — the damage mechanism simply does not apply.
UV Performance at Elevation
Boise receives 8–10% more UV radiation than sea-level cities due to elevation. AZEK and TimberTech PVC boards incorporate titanium dioxide UV stabilizers in the cap layer that reflect UV energy rather than absorbing it. This is why PVC carries a 50-year fade warranty — twice the duration of most composite warranties. In independent testing, PVC boards exposed to accelerated UV aging equivalent to 20 years of Boise sun showed less than 5% color shift.
Thermal Behavior
PVC stays cooler underfoot than composite in direct sun because the cellular core structure contains trapped air rather than dense wood fiber. On a 100°F Boise day, light-colored PVC boards measure 15–25°F cooler than same-color composite boards. However, PVC has higher thermal expansion than composite — up to 3/16″ per 16-foot board per 50°F temperature change. Our installation crews account for Boise's extreme temperature range by setting wider end-to-end gaps and installing expansion joints at 20-foot intervals.
Snow & Ice Management
PVC's non-porous surface sheds snowmelt faster than wood or composite, reducing standing water and ice formation. For snow removal, use a plastic shovel or rubber-edged snow pusher — metal shovels will scratch the cap layer. Calcium chloride and magnesium chloride ice melt products are safe on PVC. Avoid sodium chloride (rock salt), which can leave a white residue. Boise's ground snow load of 25 psf is well within PVC decking's structural capacity when installed on a properly engineered substructure.
While PVC works beautifully for any deck project, its premium price is most justified in applications where moisture resistance, stain resistance, and absolute zero maintenance matter most.
Pool & Hot Tub Surrounds
Zero moisture absorption means PVC will never rot, warp, or grow mold from constant water exposure. The non-slip textured surface and cooler-than-composite temperature make PVC the ideal pool deck material for Boise backyards.
Covered Outdoor Kitchens
PVC’s superior stain resistance means food, wine, grease, and condiment spills wipe clean without leaving permanent marks. No need for immediate cleanup during summer cookouts — stains cannot penetrate the non-porous surface.
Lakefront & Waterfront Properties
Properties near Lucky Peak, Lake Lowell, or the Boise River benefit from PVC’s complete waterproof nature. Splash zones, fishing areas, and boat dock transitions stay structurally sound with zero moisture damage over decades.
Zero-Maintenance Homeowners
For homeowners who never want to stain, seal, sand, or worry about their deck, PVC delivers true set-it-and-forget-it performance. Occasional soap-and-water cleaning is the only maintenance required for the life of the deck.
AZEK offers three distinct PVC decking lines, each targeting a different balance of price, aesthetics, and board width. All three share the same 100% cellular PVC core and Alloy Armour Technology cap layer — the differences are in color selection, surface texture depth, and available plank widths.
AZEK Harvest
Most Popular
$48 – $58 / sq ft
Installed price
The Harvest collection is AZEK's most popular line and the entry point into premium PVC decking. It features a natural wood-grain texture with subtle multi-tonal streaking that mimics the look of real hardwood. Available in 5.5″ wide planks at standard 12′, 16′, and 20′ lengths.
Color options: Brownstone, Kona, Island Oak, Autumn Chestnut, and Coastline. For Boise homes, we most frequently install Kona (warm mid-brown) and Island Oak (golden honey tone) — both complement the Treasure Valley's earth-tone architectural palette.
AZEK Vintage
Premium tier
$52 – $62 / sq ft
Installed price
The Vintage collection features AZEK's deepest and most realistic wood-grain embossing. The surface texture is hand-scraped and wire-brushed to replicate the look of reclaimed barn wood or hand-planed hardwood. This is the line to choose when visual authenticity is the top priority.
Color options: Mahogany, Dark Hickory, Coastline, and English Walnut. Dark Hickory is the standout — a rich, complex brown with charcoal undertones that looks remarkably like weathered walnut. Available in 5.5″ standard and 7.25″ wide plank formats.
AZEK Timber
Wide plank specialist
$50 – $60 / sq ft
Installed price
The Timber collection is built around AZEK's widest board — a 7.25″ wide plank that creates a bold, modern aesthetic with fewer seam lines across the deck surface. The wider format works particularly well on large decks (400+ sq ft) where the reduced number of board joints creates a cleaner, more expansive visual.
Color options: Mocha, Sedona, and Driftwood. The limited palette is curated to work with the wide plank format. Wider boards require 12″ on-center joist spacing for proper support.
Common questions Boise homeowners ask about PVC decking, answered by our deck building team.
How long does PVC decking last in Boise’s climate?
PVC decking lasts 30 to 50+ years in the Boise area with virtually zero maintenance. Because PVC contains no wood fiber, it cannot absorb moisture, which eliminates the freeze-thaw damage that shortens the lifespan of wood and even composite decking at Boise’s 2,730-foot elevation. AZEK and TimberTech Advanced PVC both carry lifetime limited structural warranties and 50-year fade and stain warranties, making PVC the longest-warranted decking material available.
Is PVC decking worth the extra cost over composite in Boise?
PVC is worth the premium for Boise homeowners who prioritize absolute zero maintenance and maximum moisture resistance. The 15–25% cost premium over composite is justified in high-moisture applications such as pool surrounds, hot tub areas, and covered outdoor kitchens where food and drink spills are common. PVC also stays cooler underfoot than composite in direct sun, which matters during Boise’s 100°F+ summer days. For standard backyard decks with moderate use, mid-tier composite offers strong value and may be a better fit for budget-conscious homeowners.
Does PVC decking get hot in the Boise summer sun?
PVC decking stays noticeably cooler than composite decking in direct sunlight. On a 100°F Boise afternoon, light-colored PVC boards typically reach 120–140°F surface temperatures, while composite boards in similar colors can reach 140–170°F. The difference comes from PVC’s lack of wood fiber, which reduces heat absorption. Choosing lighter colors (AZEK Coastline, TimberTech Snowdrift) further reduces surface temperatures. For barefoot comfort during peak summer, PVC is the best synthetic option available.
Can you install PVC decking over an existing deck frame in Boise?
Yes, PVC decking can be installed over an existing substructure as long as the frame is structurally sound and meets current code. The joists must be level, properly spaced (16 inches on center for most PVC products, 12 inches for diagonal installations), and free of rot or structural damage. In Boise’s climate, we also inspect the ledger board connection, footing depth (must reach 36 inches below grade), and all hardware for corrosion. If the existing frame passes inspection, replacing only the deck boards with PVC saves 30–40% compared to a full rebuild.
What is the difference between AZEK and TimberTech Advanced PVC decking?
AZEK and TimberTech Advanced PVC are actually sister brands under the same parent company (AZEK Company). Both use 100% cellular PVC with zero wood fiber. AZEK is positioned as the premium tier with the widest color selection, the most realistic wood-grain textures, and the Alloy Armour Technology cap layer. TimberTech Advanced PVC offers slightly fewer color options at a 5–10% lower price point while sharing the same core PVC formulation. Both carry identical structural and fade warranties. For most Boise homeowners, the choice comes down to color preference and budget.
PVC is one of several decking materials we install in the Boise area. Compare your options to find the best fit for your project, budget, and maintenance preferences.
Planning a PVC deck project involves more than material selection. Explore our related guides and services for a complete picture.
Deck Builder Service
Our full deck building service overview
Deck Building Cost Guide
Detailed pricing for Boise deck projects
Deck Materials Guide
Compare all five material categories
Deck Building Timeline
Phase-by-phase scheduling breakdown
Deck Permits in Boise
Permit requirements and process
Deck Design Ideas
Layout, style, and feature inspiration
The following government agencies, industry organizations, and official resources provide additional information relevant to your remodeling project.
Ready for PVC Decking?
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