TimberTech Deck Cost in Illinois
A TimberTech deck in Illinois costs $42-$105/sqft installed with the state's 1.00× labor multiplier (Midwest). TimberTech (owned by AZEK Company) makes 3 lines: Edge Prime+ (capped composite entry), Pro Legacy (premium capped composite), and AZEK Vintage/Harvest/Arbor (cellular PVC top tier). PVC lines outperform composite on heat + moisture but cost ~20-30% more. Illinois labor 1.00× national (Midwest baseline). Chicago's permit process is more involved than downstate.
TimberTech cost by deck size in Illinois
Mid-tier TimberTech (TimberTech Pro Legacy) at Illinois's 1.00× labor multiplier — ~$58/sqft installed.
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.
TimberTech product lines in Illinois
TimberTech installed cost ranges from $42/sqft (Edge Prime+ on PT framing) to $105/sqft (AZEK Harvest on premium railing). The PVC lines (AZEK Vintage Mahogany / AZEK Harvest Slate Gray) command the top of the range — multiply by your state labor multiplier.
Illinois-specific notes
Get a precise TimberTech quote for Illinois
Open the TimberTech Deck Calculator with IL pre-selected to dial in your exact size, board line, and railing choices.
FAQ — TimberTech in Illinois
How much does a TimberTech deck cost in Illinois?▾
In Illinois, TimberTech decking costs $42-$105/sqft installed (national $42-$105/sqft × Illinois's 1.00× labor multiplier). A typical 16×20 (320 sqft) TimberTech deck lands around $23,680. Mid-tier TimberTech Pro Legacy runs about $18,560 for the same scope.
Which TimberTech line is best for Illinois's climate?▾
Illinois's freeze-thaw cycles favor PVC over composite where budget allows. TimberTech AZEK Vintage works well in snow regions when properly fastened with the right expansion gap.
What's the permit fee for a TimberTech 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 TimberTech deck in Illinois?▾
Illinois's frost depth is approximately 42″. TimberTech 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 TimberTech worth the money in Illinois?▾
TimberTech vs PT pine over 25 years in Illinois: PT pine = ~$30/sqft installed + ~$3/sqft/yr maintenance (stain/seal annually) = $93/sqft total. TimberTech mid-tier = $58/sqft installed + $0 maintenance = $58/sqft total. TimberTech typically wins the 25-yr TCO comparison by 20-40%, plus better resale value.