Trex Deck Cost in Montana
A Trex deck in Montana costs $49-$122/sqft installed with the state's 1.28× labor multiplier (West). Trex is the largest composite decking brand in North America with ~35% market share. 3 main lines compete on price-vs-performance: Enhance (entry), Transcend (premium), Signature (luxury heat-mitigation cap). Montana labor 1.28× national. Frost depth among the deepest in the US — footing cost dominates.
Trex cost by deck size in Montana
Mid-tier Trex (Trex Enhance Basics) at Montana's 1.28× labor multiplier — ~$45/sqft installed.
Cost ranges include materials + labor + standard railing. Excludes permit ($290 baseline + 1.2% of project value), demolition (if replacing), and footings for 60″ frost depth.
Trex product lines in Montana
Trex installed cost ranges from $38/sqft (Enhance Naturals on PT framing) to $95/sqft (Signature on engineered framing + premium railing). National median is $52/sqft for a mid-tier Transcend deck — multiply by your state labor multiplier for local pricing.
Montana-specific notes
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FAQ — Trex in Montana
How much does a Trex deck cost in Montana?▾
In Montana, Trex decking costs $49-$122/sqft installed (national $38-$95/sqft × Montana's 1.28× labor multiplier). A typical 16×20 (320 sqft) Trex deck lands around $27,200. Mid-tier Trex Enhance Basics runs about $14,400 for the same scope.
Which Trex line is best for Montana's climate?▾
Montana's freeze-thaw cycles favor PVC over composite where budget allows. Trex Transcend works well in snow regions when properly fastened with the right expansion gap.
What's the permit fee for a Trex deck in Montana?▾
Montana permit fees typically run $218-$537 depending on jurisdiction and project value — most calculators use max(regional baseline $290, 1.2% of project value). MT permits $150-280. Frost depth 60″ in northern MT.
How deep do footings need to be for a Trex deck in Montana?▾
Montana's frost depth is approximately 60″. Trex doesn't change the footing requirement — that's IRC R403.1.4-driven by frost line. Use Sonotube 12-14″ to handle the deep footings. Verify with your local building department since AHJs sometimes require deeper depths than the state-published value.
Is Trex worth the money in Montana?▾
Trex vs PT pine over 25 years in Montana: PT pine = ~$38/sqft installed + ~$3/sqft/yr maintenance (stain/seal annually) = $118/sqft total. Trex mid-tier = $45/sqft installed + $0 maintenance = $45/sqft total. Trex typically wins the 25-yr TCO comparison by 20-40%, plus better resale value.
Other states for Trex deck cost
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