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Constant tension stretcher bars! An exciting new concept in canvas stretching.
Wunderbars and SWITCH frames are a revolutionary new framing system for canvas wraps. The fast and simple solution for stretching canvas allows customers to stretch canvas with little or no experience and without the need for expensive canvas stretching tools.
The unique and patented stretcher bars ensure that regardless of the hanging environment, Wunderbars will always be under constant tension eliminating canvas rippling and sagging, regardless of humidity and temperature.
Incredibly fast, Wunderbars go together square, so there's no need to repeatedly tap the stretcher bars together to get them square. Stretching canvas is simple too, just staple the canvas to the Wunderbars and pull the pins on the spring blocks. The stretcher bars do the stretching for you!
Available in a wide range of sizes and depths, Wunderbars Stretcher Bars is the solution that takes the stress out of canvas stretching.
The most popular range in the Wunderbars family, Wunderbars White comes in a slightly smaller profile at 33mm x 46mm, however still uses the same spring loaded system of the other Wunderbar profiles White comes in packs of 24 and is made from a standard grain Redwood pine.
20, 30, 40, 45, 50, 60, 70, 75 cm
70X100, 100X100, 100X150, 175X50, 150X50 cm
Wunderbars Tulip wood are the original Wunderbars. With a chunky profile of 33mm x 57mm and with a straight grained hardwood, a character of Tulip Wood, these bars are available up to 48” without the need for cross bars. Available in boxes of four. A high quality solution for your stretching, Tulip wood is a beautiful wood for stretcher bars. As a straight grained hardwood it has little or no knots.
8", 10", 12", 16", 18", 20", 24", 30", 34", 36", 40", 48" and 496 mm (for 24" media)