Building a deck in Ottawa costs between $30 and $85 per square foot installed, depending on materials, size, height, and complexity. For a standard 12x16 foot (192 square foot) deck, expect to pay $6,000-$16,000 total. Pressure-treated lumber decks cost $30-$45 per square foot installed — the most affordable option. A 200 sq ft deck runs $6,000-$9,000. Pressure-treated wood requires staining every 2-3 years and has a 15-20 year lifespan with proper maintenance. Cedar decks cost $40-$60 per squ...
Deck size is the primary cost driver, but the relationship isn't perfectly linear. Larger decks have a lower per-square-foot cost because fixed costs (permits, mobilization, stairs) are spread over more area. A 100 sq ft deck might cost $50/sq ft while a 400 sq ft deck might cost $35/sq ft in the same material. Deck height significantly affects cost. Ground-level decks (under 2 feet high) are the least expensive and often don't require railings. Elevated decks (2-8 feet high) require railings, ...
Most decks in Ottawa require a building permit. The City of Ottawa requires permits for any deck that is more than 24 inches above grade at any point, attached to the house, or larger than 108 square feet (10 square metres). Permit fees range from $100-$400. Ottawa building code requirements for decks include: minimum post footing size of 12 inches diameter extending below the 4-foot frost line, joist spacing of maximum 16 inches on centre for most decking materials, railing height of minimum 3...
Pressure-treated lumber is the entry-level choice. It's affordable, widely available, and structurally strong. Downsides in Ottawa include splintering (especially problematic for bare feet), annual maintenance requirements, and a shorter lifespan. The chemical treatment can also cause green discolouration that takes 6-12 months to weather to a natural look. Cedar is the traditional premium wood choice. It's naturally beautiful, resists insects and decay, and is splinter-resistant. Cedar is ligh...
The optimal window for deck construction in Ottawa is May through October, with June and September being the sweet spots — warm enough for comfortable construction but not peak demand. Booking in winter for spring construction typically gets you the best pricing and priority scheduling. Many deck builders offer 5-10% early-bird discounts for projects booked in January-March for spring installation. Construction timeline: a standard deck takes 3-7 days to build once work begins. However, the to...
A 200 square foot deck costs $6,000-$9,000 in pressure-treated wood, $8,000-$12,000 in cedar, and $11,000-$17,000 in composite. Per square foot, expect $30-$85 depending on material, height, and complexity.
Yes, most decks in Ottawa require a building permit. Permits are needed for decks over 24 inches above grade, attached to the house, or larger than 108 square feet. Fees range from $100-$400.
Composite decking (Trex, TimberTech) is the best overall choice for Ottawa — it handles freeze-thaw cycles without splitting, requires zero maintenance, and lasts 25-30+ years. Cedar is the best wood option if you prefer natural materials.
Pressure-treated decks last 15-20 years with maintenance. Cedar decks last 20-25 years. Composite decks last 25-30+ years with minimal maintenance. The substructure typically lasts longer than the decking surface if properly built.
Yes, when you factor in zero maintenance costs (no staining, sealing, or board replacement), composite pays for itself within 8-10 years compared to wood. It also looks better for longer and adds more resale value to Ottawa homes.