A deck should still be level in fifteen years. We build that way — proper footings below the frost line, a solid ledger connection, and materials matched to your budget and how you actually live outside.
Three honest options. We'll tell you the trade-offs straight — including when the cheaper one is the right call.
$45–$70 / sq ft installed
The most affordable way to build a large deck, and the GTA's workhorse material.
$60–$90 / sq ft installed
Natural warmth and colour that pressure-treated can't match, with natural rot resistance.
$80–$130 / sq ft installed
Capped composite and synthetic boards that never need staining — the top choice around pools and hot tubs.
Not sure? Our 2026 Cost Guide compares full project prices by size and material.
The boards are what everyone budgets for. The footings, ledger and framing underneath decide whether the deck is still level in ten years — so they're in every quote we write:
Extras we build regularly: privacy screens, pergolas, built-in benches and planters, under-deck storage, and low-voltage step lighting.
Four steps, one crew, no hand-offs.
We measure your yard, talk materials and layout, and leave an itemized written quote — valid, in writing, with no pressure.
Final drawings, material order, and the City of Toronto permit where required. Most Scarborough decks need one if attached or over 24″ high.
Holes dug to 48″, concrete footings poured and inspected, then the frame and ledger go in — the invisible work that makes a deck last.
Decking, stairs, railings and finishing touches, then a full walkthrough with you before the final invoice. Most decks finish in 1–2 weeks.
Installed prices including standard stairs, before HST and permits.
| Deck Size | Pressure-Treated | Cedar | Composite |
|---|---|---|---|
| Small — 100 sq ft | $6,000–$7,500 | $7,500–$9,000 | $8,500–$10,000 |
| Medium — 200 sq ft | $10,000–$12,000 | $12,000–$15,000 | $14,000–$18,000 |
| Large — 300 sq ft | $14,500–$18,000 | $18,000–$23,000 | $22,000–$30,000 |
| Extra large — 400+ sq ft | $18,000–$30,000 | $27,000–$35,000 | $32,000–$50,000 |
Adding a fence to the same project? See fence installation prices — booking both together saves a second site visit fee.
Send a few details and we'll book your free site visit. You'll get an itemized written quote — the number we quote is the number you pay.
Get My Free Quote