Floater Frames Explained: How They Work and When to Use One
Quick answer
A floater frame is a deep picture frame with an open back channel instead of a closed rabbet. Stretched canvas drops into the channel from behind, leaving the painted face fully exposed with a small visible gap (1/8 to 1/2 inch) around the edges. There is no glass and no mat. Floater frames are the standard frame style for canvas paintings, canvas prints, and photo prints on canvas.
Floater Frames Explained: How They Work and When to Use One
A floater frame is the frame style designed for stretched canvas. The canvas sits inside the frame with a small reveal gap on all sides, making it look like the painting is floating in space.
If you've ever looked at a contemporary art gallery and noticed that the paintings sit inside frames with a small visible gap around the canvas, that's a floater frame. The frame doesn't touch the painted surface; the canvas appears to hover (float) inside the frame, hence the name. This guide covers how floater frames work, when to use one, and how to pick the right size and depth.
What Is a Floater Frame (Also Called a Floating Frame)
A floater frame is a picture frame built specifically for stretched canvas. The construction is different from a regular frame in three ways:
- The back is open. Instead of a closed rabbet (the L-shaped groove on the back of a regular frame), a floater frame has an open channel that runs around the inside. The canvas drops into the channel from behind.
- It's deep. Floater frames are 1 to 2.5 inches deep to fit a stretched canvas, which is itself 0.75 to 1.5 inches deep on its stretcher bars.
- There's no glass. Canvas is meant to be viewed without glass. Floater frames have no glazing, no mat, and no backing board. The canvas face stays fully exposed.
The visual effect is gallery-modern: the canvas sits inside the frame like a piece of art on a pedestal, with a small visible gap on all four sides.
How a floater frame is built
Cross-section view, from front to back:
- Face, the visible front edge of the frame. Usually flat or beveled, painted or stained.
- Inner wall, the vertical edge that faces the canvas. This is what creates the visible reveal gap.
- Channel floor, the flat horizontal surface inside the frame where the canvas stretcher bars rest.
- Channel walls, the vertical walls that grip the canvas from the back when you fasten the offset screws.
- Back, the back surface of the frame that sits against the wall.
The canvas slides into the channel from behind. Offset screws (short screws with an L-shaped bracket) pull the stretcher bars tight against the back of the frame, holding the canvas in place without touching the painted face.
When to use a floater frame
Floater frames are the right pick for:
- Stretched canvas paintings, original artwork on canvas stretched over wood bars.
- Canvas prints, printed images on canvas (the inkjet wall-art kind).
- Photo prints on canvas, photographs printed on stretched canvas.
- Gallery wrap displays, canvases where the image continues around the side edges.
If any of these match your project, configure your floater frame by entering your canvas dimensions to see depth, reveal, and finish options together with live pricing.
Floater frames are not the right pick for:
- Flat paper artwork (photos, prints, watercolors), use a regular frame.
- Posters, use a regular frame.
- Three-dimensional keepsakes, use a shadow box.
How to size a floater frame
Three measurements matter when sizing a floater frame:
1. The inside opening (length and width)
Same-size floater frames have an inside opening exactly equal to your canvas dimensions. The canvas sits flush inside the frame with no visible reveal. Looks like a tight modern frame.
Oversized floater frames have an inside opening 1/4 inch to 1/2 inch larger than the canvas in each direction. This creates the visible reveal gap around the canvas, the "float", that makes the canvas appear to hover. This is the more common, more gallery-style look.
For a 16×20 canvas:
- Same-size floater: 16×20 inside opening.
- Oversized floater with 1/4 inch reveal: 16.5×20.5 inside opening.
- Oversized floater with 1/2 inch reveal: 17×21 inside opening.
2. The depth
Match the floater frame depth to your canvas depth. The frame should be at least as deep as the canvas, ideally 1/8 to 1/4 inch deeper so the canvas sits cleanly recessed.
- 0.75 inch deep canvas (gallery-thin) → 0.875 to 1 inch deep floater frame.
- 1.5 inch deep canvas (gallery-wrapped) → 1.625 to 2 inch deep floater frame.
If the frame is shallower than the canvas, the canvas sticks out the back. If the frame is much deeper, the canvas sits recessed and looks set back inside the frame (which can be a design choice for some looks).
3. The face width
Face width is how wide the visible front edge of the frame is. Pick face width to balance the canvas size:
- Canvas up to 16×20, 0.5 to 1 inch face width.
- Canvas 16×20 to 24×36, 1 to 1.5 inch face width.
- Canvas 24×36 and up, 1.5 to 3 inch face width.
Wider face width gives the canvas more visual weight on the wall. Skinny face width keeps the focus on the artwork.
Floater frame finishes
Common finishes:
- Natural wood, warm, organic, modern gallery style.
- Black, bold, dramatic, makes color pop on the canvas.
- White, clean, contemporary, fades into a white wall.
- Brown stain, traditional, warm, fits most home decor.
- Gold leaf, formal, ornate, traditional gallery framing.
- Silver finish, modern, sleek, fits contemporary spaces.
Black is the most popular floater finish for canvas because it creates strong visual contrast around the painted edge. Natural wood is a close second for warmer rooms. See all of our canvas floater frame finishes with live pricing for your canvas size.
How to install a canvas in a floater frame
- Lay the floater frame face-down on a clean flat surface.
- Set the canvas face-down into the open channel.
- Center the canvas inside the frame (for oversized floaters). Use folded cardboard or paper as spacers in the corner gaps to hold it centered.
- Drive the included offset screws through the back of the frame into the canvas stretcher bars. Three screws per side: one near each corner and one in the middle.
- Tighten until firm. Do not overtighten, the wood stretcher bar can split.
- Flip the frame over and check the reveal gap on all four sides. Adjust if uneven.
For a full step-by-step, see how to frame a canvas.
Floater frame vs. regular frame
| Floater Frame | Regular Frame | |
|---|---|---|
| Built for | Stretched canvas | Flat paper artwork |
| Back construction | Open channel | Closed rabbet |
| Glass | None | Yes |
| Mat | None | Optional |
| Depth | 1 to 2.5 inches | 0.5 to 1 inch |
| Canvas visibility | Painted face exposed | N/A |
| Visual effect | Floating gallery look | Traditional framed |
A regular frame cannot hold a stretched canvas, the rabbet is too shallow and the closed back would press against the painted surface. A floater frame cannot hold flat paper artwork, there's no glazing or mat to protect it.
Common floater frame mistakes
- Picking a frame too shallow for the canvas. Always measure canvas depth before ordering.
- Picking a frame the same width as the canvas when you wanted the floating look. You need an oversized floater (1/4 to 1/2 inch larger) to get the visible reveal.
- Putting glazing over the canvas. No. Glazing on canvas traps moisture and adds glare.
- Overtightening the offset screws. Splits the stretcher bar.
- Using a floater frame on a loose (unstretched) canvas. The canvas needs to be stretched onto bars first.
Frequently asked questions
What is a floater frame?
A floater frame is a deep picture frame built for stretched canvas. The canvas drops into the open back of the frame and sits with a small visible gap on all four sides, making the painting appear to float inside the frame. There is no glass and no mat.
What is the difference between a floater frame and a regular frame?
A regular frame has a closed rabbet that holds flat artwork pressed against glass. A floater frame has an open back channel that holds stretched canvas from behind, leaving the painted face fully exposed. Regular frames are shallow; floater frames are deep.
Do floater frames have glass?
No. Floater frames are designed for stretched canvas, which is meant to be viewed without glass. The painted surface stays bare.
How deep should a floater frame be?
Match the floater frame depth to your canvas depth. For a 0.75 inch deep canvas, pick a frame 0.875 to 1 inch deep. For a 1.5 inch deep canvas, pick a 1.625 to 2 inch deep frame. The frame should be slightly deeper than the canvas so the back sits flush against the wall.
What is a canvas floater frame?
A canvas floater frame is another name for a floater frame, the picture frame style designed specifically for stretched canvas. The terms are used interchangeably.
Can you put any canvas in a floater frame?
Any stretched canvas (one mounted on wood stretcher bars) fits in a floater frame as long as the frame is sized correctly. Loose (unstretched) canvases need to be stretched onto bars first before they can go into a floater frame.
What is the reveal gap on a floater frame?
The reveal gap is the small visible space between the canvas edge and the inside wall of the floater frame. It's what gives the floating effect. Standard reveal gaps are 1/4 inch (subtle) or 1/2 inch (more dramatic). Pick the gap when you size the frame.