§ The GTA Fieldbook · Journal
Long-form notes on building decks in the GTA.
Materials, permits, real pricing, and maintenance — written from quotes I’ve seen and contractors I’ve talked to. No affiliate links. No hidden upsells.
Composite deck mold and mildew in southern Ontario: causes, prevention, and removal
Composite is marketed as maintenance-free, but every Ontario composite deck older than three years starts showing surface mold or mildew. Here's what causes it, what actually removes it, and how to slow it down.
- Maintenance
Why pressure-treated decks warp through Toronto winters — and what actually fixes it
The cupping, twisting, and lifted screws you see on Toronto pressure-treated decks every March aren't bad lumber. They're freeze-thaw chemistry. Here's what's happening and the four interventions that work.
9 min read · By Azlan Ahmad
- Maintenance
Cedar deck splinters and surface damage: a real repair guide for Ontario homeowners
Cedar splinters more than any other GTA deck material. Most homeowners get the repair wrong on the first try and end up sanding through the heartwood. Here's the order of operations that actually works.
7 min read · By Azlan Ahmad
- Pricing
What a composite deck actually costs in Ontario in 2026
Installed pricing for capped composite decks across the GTA and southern Ontario, broken down by board tier, deck size, and the line items that drive the spread.
10 min read · By Azlan Ahmad
- Buyer guide
Modern composite deck design in Ontario: layouts, costs, and the details that actually read modern
Most "modern" composite decks built in Ontario in 2026 are still traditional decks with grey boards. Here's what genuinely modern detailing looks like, what it costs, and the five spec lines that separate a builder who's done it from one who hasn't.
11 min read · By Azlan Ahmad
- Buyer guide
Traditional cedar deck design for Toronto homes: classic patterns, real costs, the detailing that lasts
Toronto's pre-war housing stock looks wrong with composite. Here's how to spec a cedar deck that reads as traditional and survives southern Ontario — patterns, fasteners, finishes, and what it actually costs.
10 min read · By Azlan Ahmad
- Pricing
Pressure-treated deck cost in Ontario, 2026: real numbers
PT is still the cheapest way to put a deck in your backyard in southern Ontario. Here's what it actually costs installed, where the price moves, and the trade-offs people forget to price in.
9 min read · By Azlan Ahmad
- Pricing
Cedar deck cost in Toronto, 2026: clear vs knotty, builder rates, and the maintenance math
Cedar is the most misquoted material in the GTA — clear vs knotty alone can swing the install number by 35%. Here's the honest 2026 breakdown.
10 min read · By Azlan Ahmad
- Pricing
PVC decking cost in Canada, 2026: Azek, TimberTech AZEK, and Deckorators
PVC is the most expensive mainstream decking material sold in Canada — and the one most likely to be quoted in unfamiliar units. Here's what it actually costs installed in the GTA and what you get for the premium.
11 min read · By Azlan Ahmad
- Materials
Cedar vs composite for Toronto winters: a five-year cost breakdown
Which material actually costs less over five years in southern Ontario's freeze-thaw climate — and which one wins on resale.
9 min read · By Azlan Ahmad
- Permits
The 2026 Toronto deck permit walkthrough
What Toronto Building actually wants in a residential deck permit application, in plain English, with the costs and timelines you should expect.
11 min read · By Azlan Ahmad
- Pricing
What GTA contractors actually charge per square foot in 2026
Real installed-price ranges by region, by material, and by build complexity — collected from quotes seen across Toronto, Peel, York, Halton, and Durham.
8 min read · By Azlan Ahmad
- Buyer guide
Composite decking brands compared: Trex, TimberTech, and Fiberon for Ontario
Capped composite is the GTA's default upgrade material. Here's how the three brands you'll be quoted actually differ — and what to watch for in our climate.
12 min read · By Azlan Ahmad
- Maintenance
A maintenance schedule for a pressure-treated deck in southern Ontario
Pressure-treated still wins on first cost, but only if you actually maintain it. Here's the realistic month-by-month schedule that keeps a PT deck looking right for fifteen years.
7 min read · By Azlan Ahmad