• The Reality: These are usually cardboard cores wrapped in low-grade cotton.

• The Problem: They are acidic. Over time, the cardboard rots the canvas from the inside out. They also warp instantly if you apply too much paint or water.

• The Verdict: Use them for quick studies or plein air practice, but never for art you intend to sell.

• Rigidity: Canvas bounces when you touch it. Panels are solid. If you paint with heavy impasto or Encaustic, you must use panels to prevent cracking.

• Smoothness: Canvas has a weave texture. Panels can be sanded as smooth as glass, making them essential for fine detail, portraiture, and glazing.

These are typically made of birch or maple plywood.

1. Cradled vs. Flat

• Flat Panel: A simple sheet of wood (1/8" or 1/4" thick).

  • Issue: It will warp if not framed or braced. You generally must frame these.

• Cradled Panel: The wood face is glued to a wooden frame (the cradle) on the back.

  • Benefit: It mimics the look of a "Gallery Wrap" canvas. It is rigid, won't warp, and hangs on the wall without a frame.

2. The "SID" Warning (Support Induced Discoloration)

• The Science: Wood contains impurities like tannins. If you paint acrylic or oil directly on raw wood, the yellow/brown tannins will eventually seep through and stain your painting.

• The Fix: You must Seal the wood before priming. Use a sealer like "GAC 100" or high-quality PVA size to lock the tannins in, then apply your gesso.

3. The Brands

• Da Vinci Pro / Blick Premier: Excellent, affordable cradled panels found in most art stores. Smooth and ready to prime.

Ampersand is the undisputed king of pre-made art panels. They manufacture Museum Series boards that are archival and ready to use (no sealing required).

1. Gessobord 

• Surface: Sized and primed wood fiber.

• Texture: Very fine, subtle tooth. It is much smoother than canvas but not slippery.

• Use: Perfect for oils and acrylics. The brightness of the white ground makes colors pop.

2. Claybord

• Surface: Coated with Kaolin clay.

• Texture: Smooth as an eggshell.

• Superpower: It is absorbent and "erasable". You can use ink or watercolor, and then scratch it back to white with a knife (the scratchboard technique).

3. Encausticbord

• Surface: Specifically formulated to bond with hot wax.

• Why: Regular acrylic gesso repels wax. Encausticbord absorbs it, creating a permanent fuse. If you paint with wax, this is the safest commercial surface.

This is the modern archival gold standard.

• What it is: Two thin sheets of aluminum sandwiched around a polyethylene core.

• Why use it: It is lighter than wood, completely waterproof, and never warps. It is chemically inert and has no tannins.

• Verdict: Expensive, but if you want your painting to last 500 years without cracking, this is the substrate to use.

The Best All-Rounder:

Try Ampersand Gessobord (Cradled).

• Why: It saves you the hassle of sealing/sanding raw wood. It takes paint beautifully and looks professional instantly.

The "DIY" Value Pick:

Try Cradled Birch Panels (Blick or Da Vinci) and a tub of gesso.

• Why: You get the professional rigid look for half the price of Ampersand, provided you are willing to do the priming work yourself.

If you are doing heavy palette knife work or Encaustics, do not use stretched canvas. The flex will crack your paint. Switch to rigid panels immediately.