Quick answer: To put stretched canvas in a frame, choose a frame whose opening (rabbet) matches the canvas size with about 1/8 inch of play, and whose rabbet depth is close to the canvas depth. Place the frame face down on a soft surface, drop the canvas in face down, and secure it with offset clips or canvas clips screwed into the frame, not the canvas. If the canvas sticks out the back, use deeper offset clips; for a modern look, use a floater frame and screw through the frame base into the stretcher bars.
A stretched canvas does not go into a frame the way a paper print does. There is no glass, no mat, and no backing board, and the canvas itself is usually thicker than the frame’s lip is deep. That is why people get stuck on how to put stretched canvas in a frame: the canvas either sticks out of the back, rattles around inside the opening, or the usual flexible points meant for paper do not hold it.
The fix is to choose the right frame type and the right hardware. Below are the two main approaches, traditional rabbet frames and floater frames, with steps for each.
Know the Parts: Rabbet, Lip, and Depth
A few terms make frame shopping much easier.
- Rabbet: the L-shaped recess on the back of a traditional frame that the artwork sits in.
- Rabbet size: the inside dimensions of that recess. For a 16 x 20 inch canvas, you want a 16 x 20 inch rabbet size, which usually includes a small allowance of about 1/8 inch.
- Lip (or sight edge): the front part of the frame that overlaps the canvas edge, typically about 1/4 inch.
- Rabbet depth: how deep the recess is. Canvas on standard bars is around 3/4 inch deep; gallery-wrapped canvas is around 1.5 inches.
Measure Your Canvas Correctly
Measure width, height, and depth of the canvas, including the stretched fabric, not just the nominal size on the label. Hand-stretched canvases and some budget brands can be 1/16 to 1/8 inch off in either direction, which is enough to keep a canvas from dropping into a tight rabbet.
Measure depth from the painted face to the back of the stretcher bar. Write all three numbers down before shopping; frame listings almost always quote rabbet size and depth.
Small canvases are the easiest place to practice framing, since standard sizes like 8 x 10 and 11 x 14 are widely available off the shelf. Our guide to the best canvas for small paintings covers depth and size options that fit common frames well.
Option 1: How to Put Stretched Canvas in a Frame with a Rabbet
This is the classic look: a moulding that overlaps the front edge of the painting slightly.
What you need
- Frame with a rabbet sized to your canvas
- Offset clips (Z-clips) or canvas clips sized for the gap between canvas back and frame back
- Short wood screws (often included with clips)
- Screwdriver or drill with a small bit for pilot holes
- Soft blanket or towel
- Hanging hardware: D-rings and wire, or a sawtooth hanger
Steps
- Prepare the work surface. Lay a soft blanket on a table to protect both the frame face and the painting.
- Place the frame face down. Check the rabbet for dust or wood splinters and remove them.
- Insert the canvas face down. Lower it into the rabbet. It should drop in with a little play on all sides but not slide around. If it is too tight, do not force it; see the troubleshooting section below.
- Measure the step. Measure the distance from the back of the frame to the back of the canvas stretcher bar. This number tells you which offset clip depth to buy or use.
- Position the clips. Use two clips per side for most sizes, about one-quarter of the way in from each corner. Small canvases can get by with one per side.
- Drill pilot holes into the frame, not the canvas bars, to prevent splitting.
- Screw the clips to the frame. The other end of each clip should rest on the back of the stretcher bar and hold it snug against the frame lip.
- Add hanging hardware to the frame, since the frame carries the weight.
When the canvas sticks out of the back
This is the most common situation because many frames are made for thinner artwork. It is usually fine. Offset clips come in different step heights to bridge the gap. For a 3/4-inch-deep canvas in a frame with a 1/2-inch rabbet, the canvas will protrude about 1/4 inch, and a clip with a matching offset holds it securely.
If the canvas protrudes a lot, such as gallery-depth canvas in a shallow frame, the painting will sit away from the wall and may tilt forward. In that case consider a deeper frame or a floater frame instead.
Option 2: Floater Frame
A floater frame has an L-shaped profile that the canvas sits inside, with a small gap between the canvas edge and the frame wall. The painting appears to float. There is no lip covering the front edge, so the entire painted surface remains visible, including painted sides.
Steps
- Check fit. The canvas should fit inside the frame with an even gap, typically 1/8 to 1/2 inch, on all sides.
- Place the frame face down on a padded surface.
- Insert the canvas face down onto the inner ledge of the frame.
- Center the canvas so the gap is even. Small spacers cut from card can help hold the gap while you work.
- Drive screws through the frame’s base into the back of the stretcher bars. Many floater frames come with pre-drilled holes. Use screws short enough not to break through the front of the bar into the canvas.
- Remove spacers and add hanging hardware to the frame.
Floater frames suit gallery-wrapped canvases, contemporary work, and paintings with color carried onto the sides.
Frame Types Compared
| Frame type | How canvas attaches | Look | Best for |
|---|---|---|---|
| Traditional rabbet frame | Offset or canvas clips | Classic; lip covers edge | Standard-depth canvas, traditional work |
| Deep rabbet (canvas) frame | Clips or turn buttons | Classic, flush back | Gallery-depth canvas in a traditional style |
| Floater frame | Screws through frame base | Modern; full edge visible | Gallery wraps, contemporary work |
| Simple strip frame | Small brads or screws into bar sides | Minimal border | Budget framing, studios |
Hardware Options for Securing Canvas
- Offset clips (Z-clips): Most common for canvases that sit flush or protrude slightly. Sized by offset depth.
- Canvas clips or spring clips: Bend or spring against the stretcher bar; quick to install and remove.
- Turn buttons: Rotating tabs screwed into the frame back; easy to swap paintings.
- Brads or framing points: Fine for thin panels but generally not recommended for stretched canvas because they can split thin bars.
Whatever you use, attach it to the frame and press only against the stretcher bar. Never screw or nail through the canvas fabric itself.
Troubleshooting
The canvas will not fit in the rabbet
If it is only slightly too large, a framer can rout out the rabbet a little. Do not sand or shave the stretcher bars, which affects the canvas tension and the edge of the painting.
The canvas rattles inside the frame
Add thin foam or cork spacers along the inside edge of the rabbet, or use more clips to hold it firmly.
The frame tilts forward on the wall
The canvas protrudes too far behind the frame. Add bumpers to the bottom back corners or move the D-rings lower on the frame.
The painting is still slightly wet
Wait. Acrylic paintings should be dry to the touch and preferably left for a few days; oil paintings may need weeks or longer before the frame lip can touch the edge without marking it.
Choosing a Frame Style That Suits the Painting
Fit is the technical part; style is what makes the frame feel right. A few general guidelines help narrow the choice.
- Match visual weight. Bold, heavily textured paintings can carry wider or darker moulding. Delicate work usually looks better in a thin, quiet frame.
- Repeat a color, do not compete. A frame that picks up a minor color in the painting ties the piece together. A frame in the dominant color can flatten it.
- Consider the room. Natural wood suits warm interiors; black, white, or metal profiles suit modern spaces.
- Keep a series consistent. Matching frames on a set of small paintings reads as a deliberate collection.
How to Hang a Framed Canvas
Once the canvas is secured, the frame takes the load, so the hanging hardware belongs on the frame.
- Screw two D-rings into the back of the frame’s side rails, about one-third of the way down from the top.
- Run braided picture wire between them with a little slack, so the wire peaks about 2 to 3 inches below the top edge when pulled up.
- Twist the wire ends back on themselves several times and trim.
- Hang on a picture hook rated above the combined weight of frame and canvas, or use two hooks for wider pieces to keep it level.
- Add small felt or rubber bumpers to the lower back corners so the frame sits evenly against the wall.
Very small framed canvases can use a single sawtooth hanger centered on the top rail instead.
A Quick Pre-Framing Checklist
- Painting fully dry, and varnished if you plan to varnish.
- Canvas measured for width, height, and depth.
- Frame rabbet size and depth confirmed.
- Correct clip offset or floater screws on hand.
- Pilot-hole bit smaller than the screw diameter.
- Hanging hardware rated for the combined weight.
Should Stretched Canvas Be Framed with Glass?
Generally no. Acrylic and oil paintings on canvas are protected by varnish rather than glass, and the paint needs some air circulation. Glass is used for pastel, charcoal, watercolor, or very delicate surfaces. If you have a mixed-media canvas that must be glazed, a shadow box or deep frame with spacers keeps the glass off the painting.
Framing Small Canvas: A Few Extra Tips
Small paintings often look best with a frame that has some visual weight. A slightly wider moulding or a floater frame with a contrasting color can give a 6 x 6 or 8 x 10 inch painting more presence on the wall. Small canvases are also ideal candidates for grouping in matching frames. If you need subject inspiration for a set, our list of simple small canvas painting ideas works well for creating a framed series.
FAQs
Can you put a stretched canvas in a regular picture frame?
Often, yes, if the rabbet size matches the canvas. The canvas usually protrudes out of the back, so use offset clips instead of the flexible points meant for paper prints.
How do you secure a canvas in a frame?
Screw offset clips, canvas clips, or turn buttons into the frame so they press against the back of the stretcher bars. For floater frames, screw through the frame base into the bars.
What size frame do I need for a 16×20 canvas?
Look for a frame with a 16 x 20 inch rabbet size, which usually includes a small allowance for easy fit, and check that the rabbet depth works with your canvas depth.
Do you need a mat for a canvas painting?
No. Mats are used with paper artwork behind glass. Stretched canvas paintings are normally framed without a mat.
What is the difference between a floater frame and a regular frame?
A regular frame overlaps the canvas edge with a lip. A floater frame holds the canvas from behind with a visible gap around it, so the full painted edge stays visible.
Can I frame a canvas myself or should I go to a framer?
Standard-size canvases are easy to frame at home with the right clips. Odd sizes, valuable originals, or canvases that do not fit are good reasons to visit a framer.
Final Thoughts
Putting a stretched canvas in a frame is mostly about measurement and hardware. Match the rabbet size and depth, use offset clips or a floater frame instead of paper-framing points, and fasten everything to the frame rather than the canvas.
Starting with a canvas in a standard size and depth makes framing far simpler. See our picks for small-format canvas to find surfaces that drop neatly into off-the-shelf frames.
