Making / prepping your own surfaces is a great way to get exactly what you want and save some money. You may want to also try some rigid panels such as tempered hardboard, ACM Panels like Dibond both with and without canvas on top. I prefer no canvas, painting on the primed surface directly.
With or without canvas applied to a rigid panel, here are some of the reasons to go with a rigid support:
- The paint layer is less prone to cracking or separating from the surface
- There is less risk of impact damage
- No chance of the painting support tearing or sagging from expansion / contraction.
- They take up less space than canvas on stretcher bars
- Rigid panels are easier to produce than stretched canvas
- Longer Life*
- More options for the surface, from glass smooth to very heavy textures.
- Easier to prep than making your own stretched canvas
- Painting directly on primed, Tempered Hardboard is significantly less expensive than stretched canvas
- Easier to frame - pop it in the frame and insert glazing points on the back - done!.
- Less expensive frames are available vs deeper rabbets for stretched canvas
- No movement under brush pressure (some people like the bounce of a stretched canvas - I don't.)
* Longevity for the actual rigid panels is generally considered equal to or better than canvas. ACM panels probably having the longest life of any of them since they will survive for decades out in the sun, rain and snow. (Just the panel, not with a painting on it.) A piece of primed canvas would likely not last even one year outdoors in the sun without some serious damage.