How much does a full 16x20 TimberTech composite deck cost installed in Calgary including railings and stairs?

A fully installed 16x20 TimberTech composite deck in Calgary typically costs $20,000-$28,000 including railings and stairs. This breaks down to roughly $62-87 per square foot for the complete project with professional installation.

Here's the detailed cost breakdown for your 320-square-foot deck:

TimberTech decking materials run $10-16 per square foot depending on the product line. TimberTech AZEK (their premium capped composite) is at the higher end, while TimberTech Edge is more affordable. For 320 square feet, expect $3,200-$5,120 in decking materials alone.

Complete installation costs include footings (minimum 4 feet deep in Calgary), pressure-treated substructure framing, TimberTech decking with hidden fasteners, railings, and stairs. Professional installation adds $30-45 per square foot to the material cost. The total installed cost typically ranges $40-70 per square foot for composite decks in Calgary's market.

Railings add significantly to the total cost — budget $75-120 per linear foot for aluminum railings or $50-80 per linear foot for composite railings that match your TimberTech decking. A 16x20 deck typically needs 50-60 linear feet of railing, adding $2,500-$7,200 to your project. Stairs cost $800-$2,000 depending on the height and number of steps required.

Calgary's climate makes TimberTech an excellent choice for long-term value. While the upfront cost is 40-60% higher than pressure-treated lumber, TimberTech's capped composite surface resists Calgary's intense UV at elevation, handles chinook freeze-thaw cycling without warping or splitting, and requires virtually no maintenance beyond occasional cleaning. You'll save $300-600 annually on staining and sealing compared to a wood deck.

Additional costs to factor in include a building permit ($200-400 for a deck this size), footing excavation and concrete ($1,200-$2,000 for 6-8 footings), and potential electrical work if you want deck lighting ($500-$2,000). The total project cost including these extras typically reaches $22,000-$32,000.

Timing considerations: Calgary's deck building season runs May through October, and most contractors book up by March or April. TimberTech installation requires dry conditions and temperatures above 5°C for proper fastener performance. Plan to get quotes and permits lined up by February for summer construction.

Need help finding a TimberTech-certified deck builder? Calgary Deck Contractors can match you with experienced composite decking contractors from the Calgary Construction Network who specialize in TimberTech installation and understand Calgary's specific climate requirements.

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Looking for experienced contractors? The Calgary Construction Network connects homeowners with qualified professionals:

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• Jk Stucco
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• Dealtwith.
• Alpine Exteriors siding and roofing