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Hereof, what are the pieces of wood that come with a canvas?
These are called canvas tightening keys, also referred to as canvas wedges or stretcher bar keys. Small but mighty, these pieces of wood are to strengthen the canvas if it begins to sag. Canvas keys are normally stapled to the back of a pre-stretched artist's canvas in a clear plastic bag.
Secondly, what are canvas keys for? These bits of wood are canvas tightening keys or wedges, used if the canvas begins to sag a little on the stretcher. You put them into the slots made for them in the corners of the stretcher bars, then tap them in further to tighten or square up (align) the canvas.
People also ask, what are Stretch keys?
The stretcher keys are the thin, triangular wooden wedges that are hammered into the slots located at the inner corners of the stretchers, in order to tighten the canvas by expanding or opening the stretcher.
How do you tighten canvas wedges?
You can tap the small wedges into a centre bar if you wish to tighten the wood. When building a canvas there is a front and a back to the centre bar. The slot gap for the wedge should be facing the back.
How do you fit canvas wedges?
- Insert the wedges, by hand, into the corner slots, in the orientation shown.
- Place pieces of card between the stretchers and the canvas in each corner.
- Stand the canvas upright.
- Using a small hammer, knock the wedges upwards into the slots whilst supporting the canvas with your free hand.
What are stretcher bars for canvas?
