Canvas stretcher bars | Heavy-duty custom sizes | Custom size canvas frameset HEAVY-DUTY STRETCHING BARS SPECIFICATION: 1.5" deep, 2.25" height, custom length from selected laminated wood. The stretching range is +/- 1/8" of an ordered size. These stretchers are strong and perfectly keep canvas load. BENEFITS: - laminated bars. Gives ultra-strength and stability to your canvas. That is very important for a large setup. - Any size, any ratio. You can order size with fractions of an inch tolerance. - Safe measurement. Stretching works from -1/8" to +1/8" of the ordered dimensions. - Minimum tools needed. No glue! - Hard muscular work NOT requires (stretching will be done by sliding the frame apart and not by manually pulling the canvas onto the static frame to final tension.) - No experience is needed (the set can be reassembled/restretched many times.) ORDER INCLUDES: - Calibrated set of stretcher bars with your dimensions (four bars + braces if needed, depending on size) - Set of keys to stretch the system. - Set of hooks with screws to hang your artwork on a wall. - Assembly manual. ORDER DOES NOT INCLUDE: - Canvas/print/painting. THE RIGHT SIZE: Your canvas should be bigger than the stretching set you are doing to order. You need to have an extra 2.5 inches of canvas on each side to make a gallery wrap (to secure the canvas on the backside of a frame.) Example #1: For the exact 60"x90" blank canvas, you need to order a 55"x85" stretching frame.