Quick answer: Here is how to put canvas panel in frame openings correctly: buy a frame sized to the panel’s exact dimensions (an 11×14 panel goes in an 11×14 frame), remove the glass if you prefer the painting unglazed, place the panel face down in the rabbet, add a backing board if there is space, and secure it with flexible points, turn buttons or offset clips. Finish with a dust cover and a hanging wire. Make sure the painting is fully dry first.
Knowing how to put a canvas panel in a frame turns a practice board into wall-ready art in about 15 minutes. Canvas panels (also called canvas boards) are thin and flat, so they fit ordinary picture frames in a way that stretched canvas does not. That makes framing them cheaper and easier, as long as you choose the right frame and fastening method.
This guide covers sizing, frame types, a step-by-step framing method and solutions for common problems such as panels that rattle, do not fit or sit too deep. If you are buying panels with framing in mind, our guide to canvas for painting under $20 includes affordable panels in standard frame sizes.
Before You Start: Check the Painting
Framing a painting that is not fully dry can trap moisture, cause paint to stick to the frame lip, or mark the surface.
- Acrylic: dry to the touch in minutes to an hour, but thick areas benefit from a few days before framing.
- Oil: thin layers may be touch-dry in days; thicker work can take weeks. Wait until there is no tackiness at the edges where the frame lip will press.
- Varnish: if you plan to varnish, do it before framing. Acrylic paintings are often varnished after a curing period recommended by the varnish maker, while oils traditionally wait months.
What You Need
- A frame matching the panel size
- A backing board (acid-free foam board or mat board) if the frame has room
- Fasteners: flexible framing points, turn buttons, or canvas/offset clips
- A point driver, or a small flathead screwdriver and pliers
- Screwdriver for turn buttons or clips
- Kraft paper and double-sided framing tape for a dust cover (optional)
- D-rings or screw eyes and picture wire
- A soft towel to protect the painting face
- Tape measure
How to Choose the Right Frame Size
Frames are sold by the size of the artwork they hold, not by their outer dimensions. An “11×14 frame” holds an 11×14 inch panel, and its outer size will be bigger depending on the molding width. Standard panel sizes such as 5×7, 8×10, 9×12, 11×14, 12×16, 16×20 and 18×24 match common ready-made frames.
Measure your panel before buying. Panels are sometimes a fraction of an inch off nominal size. The frame opening at the back (the rabbet) should be equal to or very slightly larger than the panel. The front lip will overlap the panel by roughly 1/4 inch on each side, so keep important details, such as your signature, at least 1/2 inch from the edges.
Check the rabbet depth
The rabbet is the recessed ledge inside the back of the frame. Its depth decides how much you can stack inside. A canvas panel is usually about 1/8 to 1/4 inch thick. Add a backing board (often 1/8 to 3/16 inch) and you need roughly 3/8 inch of rabbet depth or more. Many inexpensive photo frames are shallower than that, which is why panels sometimes stick out the back.
Types of Frames That Work With Canvas Panels
| Frame type | How the panel sits | Best for | Notes |
|---|---|---|---|
| Standard picture frame | In the rabbet, behind the lip | Most panels; budget framing | Remove glass for oils and acrylics in most cases |
| Canvas or “open back” frame | In a deeper rabbet | Panels and thin stretched canvases | Usually sold without glass; more depth for backing |
| Floater frame | Panel mounted from behind, with a gap around the edge | Contemporary look, showing the panel edges | Panel is screwed or glued to a floor or spacer |
| Plein air frame | Deep rabbet, simple molding | Outdoor studies, show submissions | Often sold in panel-standard sizes |
| Shadow box | Panel mounted on a backer inside a deep box | Small panels, mixed media | Adds visual weight to small work |
Glass or No Glass?
Oil and acrylic paintings on canvas panels are usually framed without glass. The paint film is durable, and varnish protects it. Glass adds reflections and weight and, if it touches the paint, can stick to it. If you want glazing for a pastel-like look or extra protection, use a mat or spacers so the glass never touches the surface, and keep in mind it hides the texture of the brushwork.
How to Put a Canvas Panel in a Frame: Step by Step
Step 1: Prepare the frame
Lay the frame face down on a towel. Remove any backing, glass and the sample insert. Clean dust from the rabbet with a dry brush so nothing gets trapped against the painting.
Step 2: Test the fit
Place the panel face down in the rabbet. It should sit flat and fit without forcing. A slight gap of 1/16 to 1/8 inch around the edges is normal and allows for expansion.
Step 3: Add a backing board
If depth allows, place an acid-free backing board behind the panel. It adds rigidity, protects the back and gives fasteners something firm to press against. Cut it to the same size as the panel.
Step 4: Secure the panel
Choose the fastener that matches your frame depth and material:
- Flexible points: thin metal tabs driven into the inside of the frame with a point driver, laid flat over the backing. Use two per side on small frames, more on larger ones, about 4 to 6 inches apart. They can be bent up to remove the painting later.
- Turn buttons: small rotating clips screwed into the frame back. Turn them over the panel to hold it. Easy and reversible.
- Offset clips (canvas clips): Z-shaped metal clips screwed into the frame back. Choose the offset size that matches how far the panel sits above or below the frame back. These are useful when the panel stack sits proud of the frame.
- Frame tabs on ready-made frames: many budget frames include bendable tabs. They work if the panel and backing sit level with them.
Press firmly enough that the panel does not rattle, but not so hard that it bows.
Step 5: Add a dust cover (optional)
Run double-sided framing tape around the back of the frame, lay kraft paper over it, press it down, and trim it with a craft knife about 1/8 inch inside the edges. A light mist of water on the paper makes it shrink taut as it dries. Dust covers keep insects and dust out and look neat.
Step 6: Attach hanging hardware
Screw D-rings or screw eyes into the frame sides, about one third of the way down from the top. Thread picture wire between them, leaving some slack so the wire peaks a couple of inches below the top of the frame when pulled up. Twist the ends tightly back on themselves.
Step 7: Add bumpers
Stick small felt or rubber bumpers on the bottom corners of the frame back. They protect the wall, help the frame hang straight and let air circulate.
Framing a Panel in a Floater Frame
A floater frame shows the whole panel, edges included, with a small shadow gap around it. It suits contemporary work and panels with painted edges.
- Paint or tape the panel edges neatly if they will show.
- Center the panel face up in the floater frame so the gap is even on all sides.
- Mark through the frame’s mounting holes or slots onto the back of the panel.
- Attach it with short screws if the panel is hardboard and thick enough, or use strong double-sided mounting tape for thin panels. Make sure screws are shorter than the panel thickness.
- Add hanging hardware to the frame, not the panel.
Troubleshooting Common Framing Problems
| Problem | Likely cause | Solution |
|---|---|---|
| Panel too big for the frame | Panel slightly oversized or frame undersized | Sand the panel edges lightly, or have the frame rabbet trimmed |
| Panel sticks out the back | Rabbet too shallow | Skip the backing board, use offset clips, or choose a deeper canvas frame |
| Panel rattles | Too much space | Add backing or foam board layers before fastening |
| Panel too small, edges show | Odd-size panel | Use a mat, or cut a spacer, or order a custom frame |
| Panel is bowed | Humidity, thin cardboard core | Flatten under weight for a few days before framing; backing board helps hold it flat |
| Paint sticks to the frame lip | Paint not fully cured | Remove, let it cure longer, then reframe |
Framing Panels That Are Not Standard Sizes
If you cut your own panels or bought an unusual size, you have three options. A custom frame shop can cut molding to fit exactly. A larger standard frame plus a mat can work for panels if the mat opening is cut to overlap the painting edges. Or you can mount the panel on a larger backing board covered in fabric or painted a neutral color, then frame the whole board in a standard size. The last option gives a gallery-style presentation at low cost.
Ready-Made vs Custom Framing for Panels
Ready-made frames are the budget route and suit standard-size panels well. They vary in quality: check that the corners are tight, the molding is straight and the rabbet is deep enough. Some come with hardware already attached, which saves time.
Custom framing makes sense for odd sizes, gifts, competition entries or paintings you consider your best work. A framer can also add a liner (a fabric-covered inner frame), choose acid-free materials throughout and fit the panel securely. Costs are higher, so many painters use ready-made frames for studies and save custom framing for a few key pieces.
How to Remove a Panel From a Frame Later
Flexible points and turn buttons make reframing easy. Lay the frame face down, peel or slice away the dust cover, bend the points upright with a flat screwdriver or rotate the buttons, then lift out the backing and panel. Avoid prying against the painting itself; lift from the backing board. Store the panel flat or upright with its face protected until it goes into a new frame.
Tips for a Professional Look
- Match frame weight to the painting. Small panels look best in modest moldings; heavy ornate frames can overwhelm a 5×7.
- Keep frames consistent for a series. Matching frames make a group of small studies look like a collection.
- Varnish first. A uniform sheen makes framed work look finished.
- Sign the back. Write the title, date and medium on the backing or dust cover.
- Plan for future framing when you paint. Leave critical details clear of the outer quarter inch.
FAQs
Do canvas panels fit in regular picture frames?
Yes. Standard panel sizes match standard frame sizes, and their thin profile fits most frame rabbets. Check rabbet depth if you plan to add a backing board.
Should you put glass over a canvas panel painting?
Usually not for oil or acrylic. If you do use glass, keep it from touching the paint with spacers or a mat.
How do you hold a canvas panel in a frame?
Use flexible framing points, turn buttons or offset clips. Each presses the panel and backing against the frame lip from behind.
What size frame do I need for an 8×10 canvas panel?
An 8×10 frame. Frames are sized by the artwork they hold, not by their outside measurements.
Can you frame a canvas panel without a frame?
You can hang it with adhesive hangers or mount it on a larger board, but a frame protects the edges and corners and looks more finished.
How long should paint dry before framing?
Acrylic paintings can often be framed within a few days. Oils need until the surface and edges are no longer tacky, which can take weeks for thicker work.
Next Step
Framing a canvas panel is mostly about matching sizes and depths: a frame sized to the panel, enough rabbet for a backing board, the right fasteners and simple hanging hardware. Get those right and even a quick study looks finished on the wall.
If you are building up a supply of panels for framing, standard sizes save the most money and effort. Our roundup of low-cost canvas panels and stretched canvases compares affordable options in frame-friendly sizes.
