What is the role of a canvas stretcher bar

       

The canvas bar is probably that doesn’t catch up a lot of attention in a museum or an art gallery. However, the wise will surely realize that it’s the canvas bar that holds the canvas and is responsible for the elegant presentation of the excellent artworks. Not only presentation, but a canvas stretcher bar is also used by artists during the course of their artwork to support the canvas and to hold it in position. A little movement may prove a hindrance in creating a masterpiece and it’s extremely important that the canvas is held tightly with equal amount of pressure on all the sides of canvas This is useful for artists and painters, but more importantly for artworks that have embroidery, or other intricate styles involved.

How to use the art canvas bars?

The canvas stretcher bars are more commonly made of wood. The type of wood used may vary. A person needs to ensure that the wood is of good quality and robust before buying the canvas stretcher bars. To create a frame for any artwork, one would be using four such bars. These four bars are placed in order to form a rectangular or square frame (depending on the requirement). The bars aren’t fixed permanently because the bars are made up of wood and significant decrease or increase of moisture levels (which is common with changing seasons) may lead to the expansion/contraction of the wood. This may lead the crack or break of bars or uneven distortion at various parts of the bars. Thus, one should use intermittent butt or miter joints that facilitate the movement of the wood up to a certain extent. Taking up the assistance of a skilled person for the job is advised, if one isn’t used to the basic carpentry work.

On the frame, the canvas needs to be placed such that the border is folded back and it is tacked/stapled/pinned to the bars. One has to be careful that all the sides of the canvas are under equal pressure and stress (which is moderate too), thus avoiding any slag or wrinkle or extreme tension/pressure on any part of the canvas.

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