Rigid XPS type 4 (30+ psi) board 1 in 2x8 (R5) is a product we compare for you across several Quebec retailers. Insulation is chosen based on the target R-value and the surface to cover.

From one retailer to the next, the price of the same product can vary noticeably. The price follows the market, the season and the weekly flyers. Check the observation date shown above to know how recent the range is.

The best move is to compare before you buy. By looking at the price range, then the exact price at each retailer once you are signed in, you immediately see where the product is cheapest at the moment you are shopping.

Bâtir à Rabais compares the price of construction materials across 28 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 plan, 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.