Pressure-Treated Deck Builders in Toronto and the GTA
The most affordable way to add a solid, good-looking deck. Built on frost-ready footings with hardware rated for treated lumber, so it holds up for years.

A strong deck for a smaller budget
Pressure-treated lumber is softwood treated to resist rot and insects. It costs less than cedar or composite, is easy to repair, and takes stain in almost any colour.
- Lowest upfront cost of any deck material
- Strong framing lumber for raised and multi-level decks
- Easy to replace a single board years from now
- Can be stained to match your house or fence

The details that make treated decks last
Rated hardware
Treated lumber is hard on plain steel. Joist hangers, screws and bolts are rated for contact with treated wood.
Footings below frost
Posts sit on footings set deep enough to resist frost heave, so the deck stays level year after year.
Board spacing
Boards are gapped so water drains and the wood can move as it dries without cupping.
Cut-end treatment
Fresh cuts expose untreated wood. Cut ends get an end-cut preservative before they go in.
What it takes to keep it looking good
- Sweep off leaves and debris so boards can dry
- Wash the deck each spring
- Seal or stain every 2 to 3 years, more often in full sun
- Check for loose screws and railing posts each season

Two-level pressure-treated deck, about 700 sq ft, Markham
About 700 sq ft of pressure-treated deck over two levels: a raised upper deck off the house stepping down to a large lower deck, with wide stairs, wood picket railings, skirting and access doors below.

Other deck options
Pressure-treated deck questions
How long does a pressure-treated deck last?
When can I stain a new pressure-treated deck?
Can I switch to composite boards later?
Is pressure-treated wood strong enough for a raised deck?
Want a pressure-treated deck?
Send photos of the space and rough measurements. We'll price it in treated wood and show you the composite difference if you'd like.