A favorite poster might bring back a riverside afternoon in Bangkok or simply give your room a color you love. The frame helps that image feel at home.
Start with three decisions: choose a finish that works with the artwork, decide whether you want a mat, and check the dimensions before ordering. You do not need a complicated decorating formula—just a clear idea of what you want to see on the wall.
Your framing decisions at a glance
| Decision | Where to start |
|---|---|
| Frame color | Pick up a color in the artwork or a material already nearby. |
| Mat or no mat |
Decide whether the image needs more visual space around it. The frame comparisons are AI-assisted illustrative mockups. Actual finishes may vary. Frames and mats are not included with the poster. |
| Frame size | Use the full paper dimensions, including any printed border. |
| Final check | Confirm what the frame or mat will cover at the edges. |
1. Choose a frame color that supports the artwork
Think about both the poster and the spot where it will hang. The frame can connect them through color, contrast, or material.
Three finishes make useful starting points:
| Finish | A look to consider |
|---|---|
| Black | A defined edge that can echo dark lettering, outlines, or shadows in the poster. |
| Light wood | A warm connection to cream, ochre, and earthy colors, or to nearby wooden furniture. |
| White | A quieter boundary on a pale wall, especially when you want the image to carry the color. |
These are possibilities, not rules. A black frame can work with a soft illustration; a pale frame can work with a bold graphic print.
For a simple way to narrow your choice, identify one detail you want to repeat. It might be dark lettering in a food poster or a warm neutral in an architectural scene. Then check whether that finish also feels comfortable beside your wall and furniture.
Consider the frame’s width, too. A slim profile is a useful starting point when the artwork already contains intricate detail. A wider profile creates a more noticeable surround. You can choose either deliberately.
2. Decide whether a mat adds something
A mat, also called a passepartout, is a separate board with a window cut into it to reveal the artwork. It creates space between the image and the frame.
A white or warm off-white mat can give a busy composition breathing room. Framing without a visible mat keeps the presentation more compact and the image closer to its frame.
Check whether the poster already has a border
A white or cream border printed on the paper is part of the poster. It is not a separate mat, and it does not add physical separation from the glazing.
Adding a mat around an already bordered design can look generous, but it also creates more surrounding space. Look at the whole composition before deciding—especially when the artwork includes a place name or other lettering near the bottom.
For framing materials, ask for conservation-quality mat and backing boards. Keep the paper from pressing directly against glass or acrylic; a suitable mat or frame spacers can provide separation. These principles are covered in the Library of Congress framing guidance.
3. Match the dimensions before you buy
Frame listings can show several measurements. Check which one describes the print the frame accepts.
| Measurement | What it means |
|---|---|
| Poster size | The full sheet of paper, including printed borders. |
| Frame fitting size | The size of the contents the frame is designed to hold. |
| Mat outside size | The full board, which must fit inside the frame. |
| Mat window | The opening that reveals the poster. |
| Frame outside size | The finished frame’s footprint on your wall. |
For a poster without a mat, start with a frame made for that exact paper size. Do not choose by the frame’s outside dimensions. The frame lip will normally cover a little of the paper around the edges, so check its visible opening if your design has important details close to the edge. Frame measurement guide
A simple example with a mat
For a 12 × 18-inch poster, one possible arrangement is:
- Frame fitting size and mat outside size: 16 × 22 inches.
- Mat window: 11.75 × 17.75 inches.
- Overlap onto the poster: 0.125 inch on each side, with the poster centered.
That overlap covers a narrow strip of paper. Check that it leaves your lettering and important details visible. This is a calculated example, not a universal ready-made frame combination; you may need a custom-cut mat.
Mat windows are commonly slightly smaller than the paper they reveal, but manufacturers use different allowances. Check the actual opening rather than relying only on a label such as “for a 12 × 18 print.” Mat opening specifications
Check units carefully: 12 × 18 inches equals 30.48 × 45.72 cm. It is not the same as 30 × 45 cm. Use the seller’s stated fitting dimensions, and measure the actual sheet before ordering custom framing.
The larger frame also occupies more wall space. If you are still deciding how much space to fill, use our wall art size guide.
Before you order: a quick checklist
- Confirm the poster’s full paper size and measurement units.
- Check the frame’s fitting size, not just its outside dimensions.
- If using a mat, confirm both its outside size and exact window opening.
- Make sure neither the frame lip nor the mat hides important artwork or lettering.
- Check what is included: glazing, backing, mat, and hanging hardware.
Give your favorite print a setting that feels right
Choose the finish, decide how much space you want around the image, and verify the fit. That is enough to make a considered choice without overcomplicating it.
Our Southeast Asia-inspired posters give you room to make that choice your own. Frames are not included with our unframed posters.
Still deciding whether you want a framed paper print or a canvas? Our canvas vs. poster guide compares the two formats.
