DeckMath
Fiberon · Illinois · 2026-Q1 retail

Fiberon Deck Cost in Illinois

A Fiberon deck in Illinois costs $38-$95/sqft installed with the state's 1.00× labor multiplier (Midwest). Fiberon (Fortune Brands company) makes 3 main lines: Paramount (entry PVC), Promenade (mid composite), Sanctuary (premium capped composite). Strong value across all tiers — typically prices 5-10% under Trex equivalents. Illinois labor 1.00× national (Midwest baseline). Chicago's permit process is more involved than downstate.

1.00× labor$67/sqft medianFrost 42snow climate30-yr lifespan
$/sqft low
$38
Fiberon Paramount
$/sqft median
$67
Fiberon Promenade
$/sqft high
$95
Fiberon Concordia
Frost depth
42″
footing depth required

Fiberon cost by deck size in Illinois

Mid-tier Fiberon (Fiberon Promenade) at Illinois's 1.00× labor multiplier — ~$48/sqft installed.

Size
Low (entry)
Median (mid)
High (luxury)
10×12 (120 sqft)
$4,560
$5,760
$8,160
12×16 (192 sqft)
$7,296
$9,216
$13,056
16×20 (320 sqft)
$12,160
$15,360
$21,760
20×24 (480 sqft)
$18,240
$23,040
$32,640

Cost ranges include materials + labor + standard railing. Excludes permit ($175 baseline + 1.2% of project value), demolition (if replacing), and footings for 42″ frost depth.

Fiberon product lines in Illinois

Fiberon installed cost ranges from $38/sqft (Paramount on PT framing) to $95/sqft (Sanctuary Cinnabar on premium railing). Sanctuary is the highest-rated composite in independent durability tests — multiply by your state labor multiplier.

Fiberon Paramount
$38/sqft
Entry PVC · $38 national × 1.00× Illinois labor
Fiberon Promenade
$48/sqft
Mid composite · $48 national × 1.00× Illinois labor
Fiberon Sanctuary
$58/sqft
Premium composite · $58 national × 1.00× Illinois labor
Fiberon Concordia
$68/sqft
Luxury composite · $68 national × 1.00× Illinois labor

Illinois-specific notes

Labor multiplier
1.00×
Midwest region labor pricing applied to all installed costs.
Frost depth
42″
Footings must extend below frost line per IRC R403.1.4.
Climate
snow
Freeze-thaw favors PVC over composite where budget allows.
Top metros
Chicago · Springfield · Peoria
Major metros driving installer availability + pricing pressure.
Permit fee
$131-$324
Chicago metro permits $250-400. Frost depth 42″ across most of state.
Warranty
50-yr stain + structural on Sanctuary
50-yr stain + structural on Sanctuary, 30-yr on Promenade, 25-yr on Paramount

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Open the Fiberon Deck Calculator with IL pre-selected to dial in your exact size, board line, and railing choices.

FAQ — Fiberon in Illinois

How much does a Fiberon deck cost in Illinois?

In Illinois, Fiberon decking costs $38-$95/sqft installed (national $38-$95/sqft × Illinois's 1.00× labor multiplier). A typical 16×20 (320 sqft) Fiberon deck lands around $21,440. Mid-tier Fiberon Promenade runs about $15,360 for the same scope.

Which Fiberon line is best for Illinois's climate?

Illinois's freeze-thaw cycles favor PVC over composite where budget allows. Fiberon Sanctuary works well in snow regions when properly fastened with the right expansion gap.

What's the permit fee for a Fiberon deck in Illinois?

Illinois permit fees typically run $131-$324 depending on jurisdiction and project value — most calculators use max(regional baseline $175, 1.2% of project value). Chicago metro permits $250-400. Frost depth 42″ across most of state.

How deep do footings need to be for a Fiberon deck in Illinois?

Illinois's frost depth is approximately 42″. Fiberon doesn't change the footing requirement — that's IRC R403.1.4-driven by frost line. Use Sonotube 10-12″ depending on tributary area. Verify with your local building department since AHJs sometimes require deeper depths than the state-published value.

Is Fiberon worth the money in Illinois?

Fiberon vs PT pine over 25 years in Illinois: PT pine = ~$30/sqft installed + ~$3/sqft/yr maintenance (stain/seal annually) = $93/sqft total. Fiberon mid-tier = $48/sqft installed + $0 maintenance = $48/sqft total. Fiberon typically wins the 25-yr TCO comparison by 20-40%, plus better resale value.

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