Standard Picture Frame Sizes Chart (4×6 to 24×36)

Standard picture frames come in seven common sizes: 4×6, 5×7, 8×10, 11×14, 16×20, 18×24, and 24×36 inches. Each size is made to fit a print of the same dimensions, so an 8×10 frame is built to hold an 8×10 photograph or art print.

Walk into any craft store or frame shop and you will see the same numbers repeated on every shelf: 4×6, 5×7, 8×10, and up. There is a good reason for that consistency. Standard frame sizes exist because they match the dimensions of the most popular photo prints and art prints, which means you can buy a ready-made frame off the shelf instead of paying for expensive custom framing. A ready-made frame in a standard size costs a fraction of a custom-built one, and it is available immediately — no waiting weeks for a frame shop to cut moulding to order. That matters whether you are framing a single family portrait or putting together an entire gallery wall. As long as your print matches one of the standard dimensions, framing it is fast, affordable, and straightforward.

This guide gives you the complete standard picture frame sizes chart, with every size shown in both inches and centimeters so you can shop confidently wherever you are. You will learn how to match a frame to your print, when to use a mat and when to skip it, how to plan gallery-wall layouts with mixed sizes, and how to measure your art so the frame fits the first time. Frame sizes are always listed as width × height in inches, and every size works in either portrait (vertical) or landscape (horizontal) orientation — a 5×7 frame becomes 7×5 simply by turning it on its side.

Here is the full chart of standard picture frame sizes, with metric equivalents and the most common uses for each size. Keep it bookmarked the next time you are standing in the frame aisle wondering which box to grab.

Frame size	Centimeters	Best for
4×6 in	10.2 × 15.2 cm	Desk photos, snapshots, small gifts
5×7 in	12.7 × 17.8 cm	Portraits, greeting cards, shelf displays
8×10 in	20.3 × 25.4 cm	Diplomas, family portraits, certificates
11×14 in	27.9 × 35.6 cm	Art prints, medium-format photography
16×20 in	40.6 × 50.8 cm	Statement prints, posters
18×24 in	45.7 × 61.0 cm	Large posters, gallery pieces
24×36 in	61.0 × 91.4 cm	Full-size posters, statement art

One important note: the size printed on the box refers to the print the frame holds, not the outside dimensions of the frame itself. The outer width and height will always be a little larger because of the moulding — the decorative border that forms the frame. A chunky 8×10 frame might measure 10×12 inches on the outside, while a thin metal 8×10 might measure just 8.5×10.5. The centimeter equivalents above are rounded to one decimal place, which is plenty precise for buying a frame.

1. Matching Frames to Prints: The Full Pairing Guide

The number on the frame box tells you the size of the print it accepts. Inside every frame is a small inner lip, called the rabbet, that grips the edges of the print, mat, and glazing to hold the whole package together. That is why the process is so simple: measure your print, then buy the frame labeled with the same dimensions. A 5×7 photograph goes in a 5×7 frame; an 18×24 poster goes in an 18×24 frame. Where people get tripped up is the mat — that crisp border of mat board you see around prints in galleries — because adding one changes the arithmetic.

When you add a mat, you step the frame up one standard size. The mat’s window opening is cut smaller than the print so the board overlaps the print’s edges and holds it flat, which means the print-plus-mat package is bigger than the print alone. The classic move is to pair each print with the next frame size up: an 8×10 print gets an 11×14 frame with a mat, a 5×7 print gets an 8×10 frame with a mat, and so on. Here is the complete pairing reference:

Your print	Frame without a mat	Frame with a mat	The result
4×6	4×6 frame	5×7 frame	Snug fit vs. breathing room
5×7	5×7 frame	8×10 frame	The classic portrait pairing
8×10	8×10 frame	11×14 frame	The gallery standard
11×14	11×14 frame	16×20 frame	Art-print presentation
16×20	16×20 frame	18×24 frame	Poster with presence
18×24	18×24 frame	24×36 frame	Large-format drama
24×36	24×36 frame	Custom oversize	Full-size statement
Odd-size print	Trim or custom frame	Standard frame + custom mat	Flexible, but pricier

If your print falls between standard sizes, you have three options: trim it down to the nearest standard size (only if the composition allows), order a custom-cut mat that adapts it to a standard frame, or pay for a fully custom frame. For valuable or sentimental pieces, the custom-cut mat in a standard-size frame is the sweet spot — you get the gallery look without the gallery price.

2. Mat vs No Mat: Which Should You Choose?

A mat is a flat border — usually made of paper-based mat board — that sits between your print and the frame, with a beveled window opening cut into its center. Here is the key detail: the window opening is always cut smaller than the print, so the mat overlaps the print’s edges by a small margin and holds it securely in place. That overlap is functional, not decorative — it keeps the print from slipping behind the frame’s inner lip. Mats come in single, double, and even triple layers, with white, off-white, and black the most popular colors.

So why bother with one? First, a mat gives your artwork visual breathing room. A small print floating inside a wider mat and larger frame looks intentional and gallery-like, while the same print crammed edge-to-edge can look lost. Second, a mat creates physical space between the print and the glazing (the glass or acrylic front), which matters for conservation — photographs and works on paper should never sit directly against glass, because moisture can make them stick over time. Third, the mat’s clean border draws the eye inward and makes colors appear richer by contrast.

Going without a mat has its own appeal, though. Skipping the mat gives you a sleek, modern, full-bleed look where the image runs right to the frame’s edge — a style that suits contemporary photography, bold graphic posters, and minimalist interiors. It is also simpler and cheaper: no mat board to buy or cut, and a smaller, less expensive frame. Large pieces often look better unmatted, since the artwork already has enough presence to fill the frame on its own.

As a rule of thumb, reach for a mat when you are framing art prints, works on paper, or anything smaller than 11×14 that could use extra presence. Skip the mat for posters, contemporary photography, and pieces where you want maximum image impact. And if you are framing something truly special, consider a double mat — a thin reveal of a second color peeking out from behind the top mat adds a tailored, professional finish for very little extra cost.

When you shop for pre-cut mats, you will notice they are sold by the frame size they fit, not the print size — an 11×14 mat has an 8×10 window and drops into an 11×14 frame. Always check the window dimensions on the packaging before buying, since a mat labeled 11×14 will not fit an 11×14 print. If you cannot find a pre-cut mat in the combination you need, most frame shops will cut one to your exact specifications while you wait. Bring your print with you so the technician can confirm the window overlap, and ask for acid-free or conservation-grade board if the piece matters to you — standard paperboard can yellow and damage artwork over the decades, while conservation board stays neutral.

3. Gallery-Wall Layout Ideas for Standard Sizes

Gallery walls are where standard frame sizes really shine, because mixing 4×6, 5×7, 8×10, and larger frames from the same size family always looks cohesive. Start by laying your arrangement on the floor and shuffling frames around until the composition feels balanced. Many people trace each frame onto kraft paper, cut out the templates, and tape them to the wall first — it lets you experiment with spacing and placement without putting a single nail hole in the drywall.

A few layouts work beautifully almost every time. The symmetrical grid — say, nine matching 8×10 frames in three neat rows — delivers a calm, orderly look that suits hallways and offices. The anchored cluster starts with one large piece, like a 24×36 poster, and arranges smaller frames around it like satellites; this is the most forgiving layout for mixed sizes. A stairway cascade follows the angle of the stairs with progressively sized frames, while a picture ledge lets you lean framed prints of different sizes in overlapping layers that you can rearrange whenever the mood strikes.

Whatever layout you choose, keep your spacing consistent — the gaps between frames should look deliberate and even, roughly the width of your hand, so the collection reads as one composition rather than scattered pictures. Hang the center of the arrangement at eye level, and build outward from the middle rather than from a corner, which keeps the display balanced as it grows. Step back frequently and squint: if the overall shape feels like a pleasing rectangle, square, or organic blob, you are on the right track.

For a pulled-together finish, limit yourself to two or three frame finishes — black, white, and natural wood play well together — and use the same mat color throughout. A consistent mat color is the secret weapon of professional-looking gallery walls: it unifies photographs, art prints, and even children’s artwork into a single visual family, no matter how varied the images themselves are.

4. How to Measure Your Art for the Right Frame

Before you buy anything, measure the artwork itself — the print or photograph, not any frame it may already be sitting in. Lay the piece flat and measure the exact width and height with a tape measure or ruler, reading edge to edge. If your tape-measure skills are rusty, this guide on how to read a measuring tape walks through the markings step by step. Write both numbers down in inches, width first, and measure twice — a quarter inch of error is the difference between a print that drops neatly into the frame and one that needs trimming.

Remember that the frame size you buy equals the print size you measured. If your photograph measures exactly 8×10 inches, you buy an 8×10 frame (or an 11×14 frame if you plan to add a mat). Do not be surprised when the frame’s outer dimensions are larger than the labeled size — the moulding adds width on every side, and deep or ornate profiles add more than slim metal ones. If you are framing something thick, like a canvas panel or a piece with bulky embellishments, also check the frame’s depth (the rabbet depth) to make sure everything fits inside.

What if your print does not match any standard size? Photographs printed at the drugstore or lab almost always do, but art prints from independent sellers sometimes come in odd dimensions. Your cheapest fix is a custom-cut mat: the mat’s outer dimensions match a standard frame while its window is cut to your exact print size. Many frame shops and online sellers cut custom mats for a modest fee, and it is far less expensive than a fully custom frame.

When planning a matted frame, decide how wide you want the mat border to be, then add twice that width to each print dimension to find your frame size. A 5×7 print with a 2-inch mat border on every side, for example, needs an 8×10 frame with a mat cut to fit. Wider borders suit larger prints and formal presentations; narrower borders keep small pieces feeling delicate rather than overwhelmed.

One last tip that saves beginners a lot of grief: buy the frame before you print the photo. Printing services let you crop to any standard aspect ratio at no extra charge, so it is far easier to match the print to an affordable ready-made frame than to hunt for a frame that matches an oddly cropped print. Decide on the frame size first — say, 11×14 with a mat for an 8×10 image area — then crop and print to fit. Working in that order turns framing from a frustrating treasure hunt into a simple assembly job.

5. Frequently Asked Questions

What is the most common picture frame size?

The 8×10 is the workhorse of the frame world — it fits standard portrait prints, diplomas, and certificates, and it is the size you will find in the widest range of styles and prices. The 4×6 and 5×7 are close behind for everyday photographs, while 11×14 and 16×20 dominate the art-print market.

Should the mat window opening be smaller than the print?

Yes. The mat’s window is deliberately cut smaller than the print so the board overlaps the print’s edges and holds it flat against the backing. If the opening were larger than the print, the artwork would slip through the window instead of being gripped by it.

Do I measure the picture or the frame when buying?

Always measure the picture. Frame sizes describe the print they hold, not the frame’s outer dimensions. Measure your print’s width and height, then buy the frame labeled with those same numbers — stepping up one size only if you are adding a mat.

What size frame do I need for a 4×6 photo?

For a clean, simple look, use a 4×6 frame with no mat. If you want a more finished, gallery-style presentation, step up to a 5×7 frame with a mat cut for your 4×6 print. Both are standard, inexpensive sizes you can find anywhere frames are sold.

Final Thoughts

Standard picture frame sizes exist to make your life easier, and now you know how to use them. Remember the essentials: buy the frame that matches your print’s dimensions, step up one size when you add a mat, and keep in mind that the mat’s window is always cut smaller than the print so it overlaps and secures the edges. Getting these measurements right the first time saves you return trips and ill-fitting frames. Whether you are framing a single cherished photograph or planning a full gallery wall, sticking with the seven standard sizes — 4×6 through 24×36 — keeps the project affordable and stress-free. Measure twice, order once, and enjoy your walls.