BOHLE Hardwood Wooden Wedges x 50 Pieces BO 5162002

Product Information

Simply screw a square block to one corner of a plywood base and add two straight strips to the opposite outer edges of the base. If you don’t have slots then it’s also possible that your corners are not interlocked in a way that allows you to expand the corners. Attach the jig to the mitre gauge where the thickness of the wedge is determined by the distance between the stop block and the cutting line of the blade.

In each inside corner of a ready-stretched canvas or one you’ve stretched yourself, there are 2 slots in which to fit the wedges. The keys (wedges) are not designed to force the corner overlap open, but rather to sit in the gap to keep the tension as the bars try to close the gap.Please include what you were doing when this page came up and the Cloudflare Ray ID found at the bottom of this page. Due to our machining capabilities we are able to cut hardwood wedges to any size and specification required.

Centre bars also have a little gap and when you purchase a centre bar to stretch your own canvas you should receive some slim wedges to tighten up the centre bar.Claire, our former bespoke canvas maker, explains: “If you need to tighten a canvas during painting, take a slip or block of wood, hold to the inside of the stretcher bar and tap this out with a light hammer (the wood stops you getting hammer marks on the stretcher bars) do this on all four insides, then push the wedges home, they are there to act as keys to stop the stretcher from contracting they are not to be hit with a hammer.