Our large round canvas stretcher bars – are made of Baltic birch plywood which is the very best material on the market. Smaller sizes are shipped in one piece and larger units can be shipped unassembled to save on freight charges. As can be seen in the pictures and video, we utilize a puzzle shape at each intersecting piece – layer which makes assembly almost foolproof. There are two layers which overlap each other. There are also dowels which keep each layer in place. Wood glue is required (supplied) at each intersecting end and must be spread evenly between the top and bottom layer. We don’t expect that everyone will have an ample supply of c – clamps so we include screws and pre drilled holes. Once the glue is dry, this unit is very solid and no center supports are required!
If you need a circle canvas stretcher bar larger than 96 inches in diameter please call us to discuss.