Ottawa Deck Cost 2026: 12x12 from $3,995, Every Size & Tier – Luxury Decking

Ottawa Deck Cost 2026: Real Pricing for Every Size & Tier

A standard 12x12 deck in Ottawa starts at $3,995 (Silver package, premium pressure-treated wood, no railings) and runs to $15,495 (Diamond package, top-tier composite or PVC on helical piles). A 16x20 deck ranges from $9,495 (Silver) to $31,995 (Diamond). A 20x20 ranges from $11,795 (Silver) to $39,495 (Diamond). These are our published package prices, plus HST, backed by a 5-year labour warranty on every build.

Luxury Decking publishes its package prices for every standard size at every tier. Most Ottawa deck builders do not. Our package pricing works out to roughly $28 (Silver, pressure-treated wood) to $108 (Diamond, top-tier PVC on helical piles) per square foot, compared with the $65 to $300 per square foot range published by Ottawa outdoor-structure generalists. We are deck specialists, which keeps material sourcing and crew utilisation tight, and we pass the difference back as price transparency.

How Much Does a Deck Cost in Ottawa in 2026?

Most Ottawa homeowners we work with land between $5,000 and $25,000 for a finished deck with railings and stairs. The three variables that drive pricing are size, material tier, and add-ons. The pricing below shows every standard size at every tier so you can plan around real numbers. For non-standard sizes, run your dimensions through the InstaQuote calculator.

Pricing by Deck Size in Ottawa

Published base package pricing (deck surface and framing, no railings or steps, plus HST):

12x12 (144 sqft): Silver $3,995, Gold $7,495, Platinum $12,495, Diamond $15,495. 12x16 (192 sqft): Silver $5,895, Gold $9,995, Platinum $15,995, Diamond $19,995. 12x20 (240 sqft): Silver $6,995, Gold $11,995, Platinum $19,495, Diamond $24,495. 16x16 (256 sqft): Silver $7,495, Gold $12,995, Platinum $21,495, Diamond $26,995. 16x20 (320 sqft): Silver $9,495, Gold $15,995, Platinum $25,995, Diamond $31,995. 20x20 (400 sqft): Silver $11,795, Gold $19,895, Platinum $31,995, Diamond $39,495. For any other size, the InstaQuote calculator prices your exact dimensions in about 30 seconds.

Cost Per Square Foot in Ottawa

Based on our published packages: Silver tier (premium pressure-treated wood) works out to $28 to $31 per square foot. Gold tier (premium composite from Fiberon, TimberTech, and Eva-Last) works out to $50 to $52 per square foot. Platinum tier (premium PVC and top composite on cement footings) works out to $80 to $87 per square foot. Diamond tier (top-of-line boards on helical piles with LED lighting) works out to $99 to $108 per square foot. The Ottawa market range published by competitor outdoor-structure generalists is $65 to $90 for wood, $90 to $150 for composite, and $150 to $300 for covered structures. Luxury Decking publishes exact package prices because we build decks exclusively.

The Four Tiers Explained: Silver, Gold, Platinum, Diamond

Silver package (from $3,995 for 12x12) uses premium pressure-treated wood on a 2x8 pressure-treated frame at 16-inch centres with a floating deck-block foundation. Best for value-conscious homeowners who want a real wood deck. Lifespan 15 to 25 years with annual maintenance.

Gold package (from $7,495 for 12x12) uses capped composite from Fiberon GoodLife, TimberTech Prime, or Eva-Last Infinity in 8 colours, with a 25 to 30 year material warranty. Most popular tier in Ottawa. Wood-grain finish, no staining required ever. Read the full composite brand comparison.

Platinum package (from $12,495 for 12x12) steps up to Fiberon Sanctuary, TimberTech Terrain, or Woodbridge PVC on a 2x10 frame with a dug cement footing foundation, DeckGuard joist protection, and landscape fabric plus stone, in 18 colours. 25 to 40 year material warranty. Our clients' preferred choice.

Diamond package (from $15,495 for 12x12) is the top of the line: Fiberon Concord, Paramount, or Promenade, TimberTech Reserve, or Azek Landmark boards on a helical pile foundation with a 2x10 frame at 12-inch centres, DeckGuard joist protection, an integrated LED lighting package, and 23 colour options. 30 to 50 year material warranty, and the 10-year extended labour warranty is included.

Pricing by Material: Composite, PVC, Pressure-Treated

Composite decking (Gold tier and up) is the Ottawa favourite. Wood fibres bonded with polymer and capped with a hard plastic shell. The cap is what gives composite its scratch resistance, fade resistance, and freeze-thaw durability. PVC decking (available in Platinum and Diamond tiers) is fully synthetic with no wood fibres anywhere, making it the only material on the market that is truly waterproof. Pressure-treated wood (Silver tier) remains the lowest cost-of-entry option with a 15 to 25 year lifespan when maintained annually.

Pricing by Ottawa Neighbourhood

Pricing is consistent across our Ottawa service area. What changes is the type of deck most homeowners choose based on lot size and home style. Greely and Manotick rural lots support generous footprints from $7,000 to $22,000. Barrhaven and Kanata suburban builds typically run $8,000 to $22,000 with composite Gold or PVC Platinum tiers most common. Orleans, Westboro, and Stittsville projects span $9,000 to $23,000 with neighbourhood-specific style preferences (Orleans focuses on aging-deck replacements, Westboro favours design-forward Platinum builds, Stittsville supports larger composite builds for newer homes).

What Is Included in Every Build

Every Luxury Decking package includes design, materials, labour, site protection during the build, cleanup and haul-away, and a 5-year labour warranty (10-year extended included with Diamond, available as an upgrade on every other tier). Foundations are tier-specific: Silver and Gold use a floating deck-block foundation, with upgrades to frost-depth cement footings (+$1,049) or helical piles (+$1,440); Platinum includes dug cement footings to Ottawa frost depth; Diamond includes a helical pile foundation. Permit requirements are reviewed at consultation and we handle the filing when one is required. See our cement footings guide for technical details.

Common Add-Ons and Costs

Aluminum railing $130 per linear foot. Pressure-treated wood railing $60 per linear foot. Glass-panel railing $180 per linear foot. Steps to grade $110 per step. Lattice or composite skirting $20 to $35 per linear foot. Integrated low-voltage LED lighting $250 to $650. Privacy screen panels $400 to $1,200. Pergola (kit-built) $2,500 to $6,500. Example: 12x12 Gold composite deck ($7,495) with aluminum railings on three sides (about 36 linear feet) and three steps totals approximately $12,505.

Frequently Asked Questions

How much does a 12x12 deck cost in Ottawa? A 12x12 deck package runs from $3,995 (Silver, pressure-treated wood, no railings) to $15,495 (Diamond, top-tier boards on helical piles). With aluminum railings on three sides and three steps, expect roughly $9,000 to $20,500 all-in depending on tier.

How much does a 16x20 deck cost in Ottawa? A 16x20 deck package runs from $9,495 (Silver) to $31,995 (Diamond). With railings and four steps, expect roughly $16,700 to $39,200 depending on tier.

Is a permit required for a deck in Ottawa? Most decks more than 24 inches off the ground require a City of Ottawa building permit ($200 to $400 typical fee). Permit requirements are reviewed at consultation and we handle the filing when one is required.

How long does it take to build a deck in Ottawa? Most decks take 3 to 7 build days once on-site. Total project timeline from contract to completion is typically 4 to 8 weeks during peak season (April to October).

What is the difference between composite and PVC decking in Ottawa? Composite (from the Gold tier, about $50 per sqft) is wood fibres bonded with polymer and capped with hard plastic. PVC (Platinum and Diamond tiers, about $80 to $108 per sqft) is fully synthetic with no wood fibres. PVC is more weather-resistant with the cleanest dark colours and the longest lifespan. Composite is the value-best for most builds.

How long is the labour warranty? Every build includes a 5-year labour warranty as standard. The 10-year extended warranty is included with the Diamond package and available as an upgrade on every other tier. Manufacturer material warranties run separately (25 to 50 years depending on board line).

How does Luxury Decking pricing compare to other Ottawa builders? Our published packages work out to $28 to $108 per square foot depending on tier, competitive within the Ottawa market and below the market average for outdoor-structure generalists who charge $65 to $300 per sqft. We build decks exclusively, which keeps material sourcing and crew utilisation tight.

How to Get Your Exact Price

Try the InstaQuote calculator for an instant 30-second price across all tiers. Book a mobile showroom visit for samples brought to your driveway. Or book a free on-site assessment with measurements and a written quote within 48 hours.

Explore more: InstaQuote Calculator | Composite Decking | Concrete Footings | Best Composite Brands | Custom Deck Builder Ottawa Guide | All Resources

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