QUALITY STRETCHER BARS FROM WUNDERBARS
With the Wunderbars range of constant tension stretcher bars you'll never have to worry about a slack canvas again. Wunderbars patented technology not only does the stretching of the canvas for you but also ensures that the canvas stays taught and sag free. Throw away your canvas stretching pliers and watch Wunderbars do all of the stretching for you. Simply pull the pin and watch as the frame expands to its optimal stretching point. Time saving and ideal for anyone who's not stretched canvas before. Wunderbars really are the Rolls Royce of stretching canvas solutions. Click the video opposite to see how they work.
Gently does it!
With a traditional stretcher bar whacking the wedges in can have a detrimental effect on your canvas ink. An over-stretched canvas can easily crack the ink at the side of the finished image. With Wunderbars there's no heavy hitting, the spring loaded corner pieces gently spread your corners apart allowing for an even gentle stretch whilst keeping the tension.
The choice is yours
Choose a pine shallow robust bar in Wunderbars White (33x45) a high quality extra strength, made for massive canvas's Tulipwood bar with Wunderbars Tulip (33x57) or a Gallery wrap chunky 44x44 Wunderbar.
Never stretched canvas before?
Frequently asked Wunderbars stretcher bar questions
All of the Wunderbars are supplied 3mm under sized to allow for the wrap of around of the canvas. This is standard practice in the stretcher bar world. Bespoke sizes are made to exact sizes unless otherwise specified
why don't you need stretching pliers?
Wunderbars are supplied with a patented corner block, so you don't need any expensive stretching tools, or knock in wedges/Keys at the end. Simply staple by hand, pull the pin and watch as your canvas stretches itself. Wunderbars also never goes slack as the blocks continually push open the bars.
do you offer a bespoke service?
All of our stretcher bars and frames for stretcher bars are manufactured at our facility in Cradley Heath. We can provide any size stretcher bar up to 2.5m and any sized frame up to 30 Inches, though we could go bigger if required, contact us to see if we can do a larger size
what do I do with the discarded pull pins?
The pull pins that come out of the corner block to stretch the canvas can either be kept and reused (Wunderbars is totally reversible) or you can send them back to us at the address on the footer and we'll recycle them
how do i put the pins back in the block?
You can, if you're strong enough, do this on a none slippy table top. Push down on the black piston and insert the pin in the second hole on the block. Alternatively, if you have a hand vice, clamp the block in the vice and turn it until the pin disappears.
what happens if it breaks?
In the time we have been manufacturing Wunderbars, 6 years at the time of writing, and were now into the millions of bars that we have produced, we have never had a Wunderbar break. They just work, leaving you to get on with other parts of your business. If yours has broken, we'd be interested how it happened!
what about cross bars?
For larger sized bespoke frames we make to order. All of the frames that need cross bars are supplied with the suitable amount. All cross bars come with a "mini" spring loaded block to give you extra stretch for a larger sized frame