2x6 price in Canada: what a 2x6x8 costs at Quebec retailers

The table is the 2x6x8 price at each Quebec retailer, seen October 13, 2026. RONA is cheapest at $4.92 and BMR the priciest at $6.98, a gap of $2.06 per board (42 percent).

RONA lists an economy grade 2x6 as its lowest price. Economy grade is a step below stud grade, so some of the gap is the board and not the store.

A 2x6 measures about 1 1/2 inches by 5 1/2 inches once dried and planed. A wall framed with it is 5 1/2 inches deep, against 3 1/2 inches for a 2x4 wall, and that extra depth is room for more insulation. It is also why a standard R20 fibreglass batt is sized for a 2x6 cavity.

The same board is used for floor joists and rafters over short spans. How far a 2x6 can span depends on the species, the grade, the spacing and the load, so use your local building code and span tables rather than a rule of thumb.

Studs at 16 inches on centre use about 0.75 studs per linear foot of wall, plates not counted. At the median price we tracked on each size, that is $2.84 of studs per foot of wall in 2x4 and $4.84 in 2x6. A 2x6 stud costs about 1.70 times a 2x4 stud.

The stud is the small part of the difference. A deeper wall also takes more insulation, deeper window and door jambs, and longer fasteners. Price those too before you decide.

The shelf prices on this page are what Quebec retailers charge. If you build somewhere else, the best official yardstick we have is Statistics Canada's building construction price index, which follows what builders pay for wood, plastics and composites in a single-detached house in each province.

Quebec, where our shelf prices come from, reads 118.8, up 5.0% on a year earlier. That is the highest of the 9 provinces Statistics Canada tracks, and Ontario is lowest at 97.4 in the second quarter of 2026. These are cost indexes set to 100 in a base period: they say how fast lumber and panel costs have moved in each province, not what a single item sells for at your local store. We will publish real shelf prices for your province as it goes live.

Framing is only part of a lumber list. The 2x4 guide covers interior partitions and the precut stud, the treated lumber guide covers decks and anything outdoors, and the OSB and plywood guides cover the sheathing that goes over your frame.