How to build a deck. Step by step.

Must-own: circular saw, drill + impact driver, 4 ft level, tape measure, framing square, chalk line, post-hole shovel or auger, and a hammer. Must-rent or borrow: mitre saw (a circular saw works but a mitre is 5x faster on cuts), torpedo level, gas-powered auger if pouring concrete piles, and a string line. Composite-specific: a Camo or hidden-fastener installation tool (some are free with bulk clip purchase at TUDS). Don't forget: safety glasses, knee pads, and a tool belt — a long install day on a deck is brutal without them.

Three steps trip up first-timers: (1) Ledger attachment — code requires through-bolts and proper flashing; getting it wrong rots the band joist and voids the structural integrity within 5 years. (2) Squaring the frame — if your initial layout is 1° off, every board cut compounds the error. Use the 3-4-5 method religiously. (3) Joist crowning — every joist has a bow; install bow-up so it flattens under load instead of sagging. Honest answer: if any of those three steps make you nervous, look at TUDS Assisted DIY. We set the structural part, you finish the deck.

Both are allowed. Ledger-attached is cheaper (no extra row of piles and posts) but adds the highest-risk structural step on a DIY deck. Free-standing doubles the post count and material cost but eliminates the band-joist rot risk and is much simpler to permit. Sask municipalities require through-bolts (not lag screws) into solid framing for any ledger attachment, plus ledger flashing to prevent water from sitting on the band joist. If your house has stucco, brick, or stone exterior, a free-standing deck is often the realistic answer — drilling through structural finishes is a non-DIY job.

Saskatchewan, Alberta, and Manitoba: 1.2 metres (4 ft) minimum below grade. That's twice the depth required in coastal BC or southern Ontario. Some northern Sask municipalities require 1.5 m. Concrete sonotube piles need to extend below frost line and bell out at the base for bearing. Helical screw piles are increasingly popular in our climate because they install in a day, no curing, and the pile installer can certify depth on the spot for the inspector. Each pile costs $150–$400 installed in Saskatchewan; a 320 sq ft deck typically needs 6–10.

Labour is 40–60% of installed cost on most Prairie residential decks. Realistic DIY savings on a 320 sq ft mid-tier composite deck: $10,000–$25,000 vs. a managed install. Factor in $300–$800 in tool rentals + 10% extra material for waste + the time cost. TUDS Assisted DIY typically saves $7k–$22k vs. fully-managed without doing the structural work yourself. See Deck Cost Canada for the full breakdown.

Saskatchewan residential decks (under National Building Code Part 9): (1) Footings below 1.2 m frost depth. (2) Ledger through-bolted with flashing. (3) Joist spacing per span tables (12–24 in OC depending on board + span). (4) Guard / railing height 36 in residential under 1.8 m above grade, 42 in above. (5) Guard spacing 4 in max sphere passage. (6) Stair geometry rise 5–7-7/8 in, run 8.25 in min. (7) Graspable handrail on stairs over 3 risers. (8) Lighting required at exterior stairs in some municipalities. Always confirm with your local building department.

Phone TUDS. We answer the phone in Saskatoon (306-249-3325) and Regina (306-522-3325) Mon–Fri 7am–5pm and Sat 9am–3pm. We've talked customers through ledger attachment, joist span confusion, and railing post anchoring more times than we can count. If the issue is structural — say, you've framed something you don't trust — we can dispatch a TUDS Assisted DIY crew to inspect, correct, and hand it back. The point is: you're not alone. The whole reason TUDS exists is so prairie homeowners can DIY without betting the project on a YouTube video from Florida.

The prairie deck-build window is April through September. May and June are ideal — frost is out of the ground (so piles can go in), temperatures are 10–20°C (so composite isn't expanded to its hot-day length), and you have long evenings for after-work progress. July–August work but composite boards are at peak expansion — install with full hot-day end-gap (5 mm) to avoid winter shrink-pull. September is the closing window — get inspection scheduled before frost. October–March: not realistic for foundation work. Plan it now, dig in spring.

Always before. Saskatoon and Regina both require the permit to be issued before any ground is broken — digging without one can result in stop-work orders, fines, and forced removal of non-conforming work. The legal sequence is: drawings → permit application → wait for issuance (5–15 business days) → call Sask 1st Call (3 business days minimum) → dig. The biggest DIY mistake we see is homeowners who pour piles, then submit drawings, and have to re-dig because the inspector ruled the pile depth or spacing non-conforming.