PQ Bracing for Profile 2 PQ Stretchers OnlyRenown for its optimum strength, our PQ bars are made from the best European re-forested timber, kiln dried and knot free pine. The Bar has been finger spliced - this is a method of bonding pieces of lumber together to form a very long, straight bar, that actually makes it a stronger support for your canvas.Each Bar's profile has a 1/3" rise to prevent sagging and each bar is slightly rounded at the top edge, which is ideal for accommodating various canvas and linen weights.  All products listed are usually of a large weight and size. Due to this fact, extra freight charges will be calculated upon check out.