2x4x8 SPF stud
Lumber & framing

2x4x8 SPF stud

8 retailers compared

Compared at
  • BMR
  • Canac
  • Gagnon La Grande Quincaillerie
  • Home Depot Canada
  • Laferté
  • Matério
  • Patrick Morin
  • Rona
Best price$3.13 to $3.89
Average price $3.48Prices observed on July 3, 2026
Save up to $0.76between the cheapest and the priciest retailer

Who has the best price? Create a free account to see the exact price of the 2x4x8 at each retailer and spot the cheapest one.

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In short: 2x4x8 SPF stud is compared across 8 Quebec retailers, from $3.13 to $3.89, averaging $3.48. The cheapest retailer changes week to week. Sign in for free to see the exact price at each retailer and spot the lowest.

Buying your 2x4x8 kiln-dried spruce the smart way

The 2x4x8 in spruce-pine-fir (SPF) is the most-used framing stud on Quebec residential job sites. Despite its name, a 2x4 actually measures 1 1/2 in by 3 1/2 in (38 mm by 89 mm), and the 8 means 8 feet long. The nominal dimension is the size of the wood before planing and drying.

Kiln-dried spruce means the wood was run through a kiln to bring its moisture content down, often below 19 percent. Well-dried wood moves less once installed: less warping, less shrinkage, straighter walls. Most 2x4x8s sold in hardware stores are grade No. 2 and better or stud, which is fine for framing.

Do not confuse it with treated 2x4 (tinted brown or green). The kiln-dried spruce 2x4x8 is for interior and sheltered structural use: walls, partitions, top plates, studs set 16 inches on centre. For anything touching the ground or left outdoors (patio, exterior structure), you need treated wood, which costs more.

From one retailer to the next, the same 2x4x8 often varies by more than a dollar a piece. Over 50 or 100 studs, the gap quickly becomes tens of dollars. The price follows the lumber market, the season (higher in spring and summer) and the weekly flyers. Buy when several stores are low at the same time, and rely on the observation date shown above.

Frequently asked questions

How much does a kiln-dried spruce 2x4x8 cost in Quebec?

The price moves within a range of a few dollars depending on the retailer and the week. The up-to-date range is shown above, and once you are signed in, you see the exact price at each of the compared retailers.

Does a 2x4 really measure 2 inches by 4 inches?

No. A nominal 2x4 actually measures 1 1/2 in by 3 1/2 in. The 2 x 4 refers to the rough size, before planing and drying. So the 2x4x8 is 1 1/2 x 3 1/2 in over 8 feet long.

What is the difference between kiln-dried spruce and treated wood?

Kiln-dried spruce (SPF) is for interior and sheltered structure. Treated wood, impregnated to resist moisture and insects, is for outdoors or ground contact. You never swap one for the other for outdoor use.

How many 2x4s do I need to frame a wall?

For a wall with studs 16 inches on centre, count roughly the wall length in feet divided by 1.33, then add the corner and opening studs, plus the bottom plate and top plates. A 12-foot wall needs around 10 to 12 studs, not counting the top and bottom plates.

Which retailer is cheapest for this 2x4x8?

It changes from one week to the next. Create a free account to see the price per retailer for this product and spot the cheapest one at the moment you buy.

Is this part of a bigger project?

One product is a single line. Across a full list, the price gap between retailers can add up to hundreds of dollars. With the Project Pass at $9, you build your whole list and we calculate your buying plan, store by store, so you pay the least on every material.

What is Bâtir à Rabais?

Bâtir à Rabais compares the price of construction materials across 17 Quebec retailers. You look up a product, we show you the price range, and once you are signed in, the exact price at each retailer.

With a Project Pass, you build your full project list and we calculate your cheapest buying plan, store by store. You know exactly what to buy, where, and how much you are saving.

It started as a project by two guys from here, Simon and Alexandre, to help Quebec self-builders and renovators keep more money in their pockets.

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