Most advice about choosing a canvas is written for people painting freehand, where the canvas is a decision. In paint by numbers it is not. The canvas arrives in the box, already primed and already printed with the outlines and numbers. You cannot substitute a different one, because the design is on it.
So the useful question is not which canvas to buy. It is what you are actually getting, what separates a good one from a poor one, and what not to do to it. That last part matters, because some of the advice circulating about canvas preparation will destroy a numbered canvas outright.

What the Canvas in a Kit Actually Is
Almost always cotton, pre-primed, and printed. Ours is pre-primed cotton.
Primed means the weave has been sealed with a ground coat before printing, so paint sits on the surface instead of soaking into the fibers. This is why acrylic goes on evenly and why one coat usually covers. An unprimed canvas would drink the paint and go blotchy.
Printed means the design has been laid down on top of that primer as faint outlines with a number inside each shape. The numbers are deliberately printed light, because they need to disappear under the paint rather than show through it. That is a design choice, not a printing fault, and it is the reason a large reference image matters so much.
Linen, canvas weight in ounces, thread count and texture are all real considerations if you are stretching your own canvas for freehand work. None of them is something you choose in a kit, and any kit listing that talks up its linen is worth a second look, because linen is expensive and rare at kit prices.
Never Prime a Numbered Canvas
This is the one genuinely important warning in this article.
You will find instructions telling you to brush a coat of gesso over a canvas before painting to improve adhesion. On a blank canvas that is sometimes reasonable. On a paint by numbers canvas it is a disaster, because gesso is opaque white. A coat of it covers the outlines and the numbers, and there is no way to get them back. The kit becomes a blank canvas.
The same applies to sanding, to wiping the surface with solvent, and to any product sold as a canvas preparation. The canvas in your kit has already been prepared. Open it and paint on it.
The Two Things Worth Checking Before You Buy
Rolled or folded
This is the single biggest difference between kits, and it is rarely stated prominently.
A canvas shipped rolled in a tube arrives flat. A canvas folded into a flat envelope arrives with hard creases across the image, and those creases do not fully come out, because the fold is a crushed line in the fibers rather than a mark on the surface. Painting across one is awkward and the finished piece shows it under a frame.
It is the most common complaint in the category and the easiest thing to avoid. Ours ship rolled in a tube, and it is the thing customers mention unprompted more than any other feature.
Whether a full-size reference is included
Because the printed numbers are faint and small, a printed reference image you can set beside you is worth more than any other extra in the box. Some kits include only a small picture on the lid. Ours include an 11 by 17 inch printed reference.
Several of our customers also use a magnifier and a good lamp for the finest sections, and we would rather say that plainly than pretend every section is easy to read.
If Your Canvas Arrives With a Crease
Even a rolled canvas can pick up a soft curl from the tube. That relaxes on its own. A genuine crease from folding needs more.
- Lay it flat under weight. Unroll it face up on a clean, flat surface, cover it with a clean sheet of paper, and stack books evenly across it for a day or two. This is slow, safe, and works on most soft creases.
- Give it time before you judge it. A canvas that came out of a tube an hour ago is not a canvas that has been flat for a week.
- Do not cut anything. There is advice circulating that involves scoring or slicing the back of a canvas to release a crease. It ruins the canvas and it cannot be undone.
- Be careful with heat. A printed, primed canvas is not a shirt. If you try an iron at all, it goes on the reverse, on the lowest setting, through a cloth, and never on the painted face.
Framed and Unframed, and the Part Nobody Mentions
A framed kit arrives already stretched on a wooden frame. You paint on a rigid surface and hang it when it is dry. Our framed sizes are 12x16 and 16x20 inches, and the framed kits include a small easel.
An unframed kit is a rolled sheet, 16x20 inches in our range, and it costs less. Here is the honest caveat: the printed margin around the image on an unframed paint by numbers canvas is narrow. It is designed to be mounted to a board or set into a frame, not to be stretched over stretcher bars, because stretching needs an inch or more of blank canvas on every side to wrap and staple. Some customers have found that out the hard way after finishing a painting.
If you know you want to stretch it yourself, measure the blank margin before you start, not after. If you want to hang it without any fuss, buy the framed version. Our guide to framing a finished canvas covers the options in more detail.
Looking After It Afterward
Acrylic is dry to the touch in minutes and fully cured in a few weeks. Once it has had a couple of weeks, a thin coat of varnish will protect the surface from dust and slow down fading. Apply it evenly with a clean, wide brush or a spray, in one thin coat rather than one thick one, and let it dry fully before hanging.
For care, dust with a dry, soft brush. Do not wipe an acrylic painting with a wet cloth. Keep it out of direct sunlight and out of damp rooms, and if you need to store canvases, stand them on edge rather than stacking them face to face.
What We Do and Do Not Sell
To be clear, because the question comes up: we sell complete paint by numbers kits. We do not sell blank canvas, stretcher bars, gesso or standalone brushes. What we do sell alongside the kits is matched extra paint, one set per design, for when a heavily used color runs low near the end.
The full catalog is here, and the beginner's guide covers the working order once the canvas is out of the tube.