Guide to Frame and Mat Dimensions for Common Print Sizes

Written by Mark Rogers

Art comes in many shapes and sizes, but there are certain popular ones depending on the type of artwork — namely photos and art prints — which makes it that much easier to find a way to display it.

If you’re framing your prints without a mat board, finding a frame is easy. The frame size — the measurement of the inside of the frame — is the same as the print, so a 5 x7 print will fit in a 5x7 frame. Photo and art prints are often matted, however, which adds another dimension to your framing project.

Instead of measuring and figuring out the right dimensions of the frame and the mat board yourself, refer to our list of the most common mat opening and frame sizes based on your print or photograph.

The Most Common Photograph Print Sizes and Frames

Fine art photography and other types of professional art, whether bought at an art fair, gallery show or directly from the artist, are often sold in just a few sizes, and there are customary mat board and frame sizes for all of them.

Note that Frame Destination cuts mat windows 1/8-inch smaller than prints 18 x 24 and under — allowing for more of the image to show through — while standard, off-the-shelf frames and other frame shops may cut them 1/4-inch smaller. The suggestions listed use Frame Destination mat cutting standards.

Photo Print Size Mat Window Opening Picture Frame (Inside)
5 x 7 4 3/4 x 6 3/4 8 x 10, 11 x 14
8 x 10 7-3/4 x 9-3/4 11 x 14, 16 x 20
11 x 14 10 3/4 x 13 3/4 16 x 20
12 x 18 11 3/4 x 17 3/4 16 x 22, 18 x 24, 20 x 26
16 x 20 15 3/4 x 19 3/4 20 x 24

The Most Common Art Print Sizes

Because art prints are reproductions of original work, the print sizes — like photography prints — are generally similar. If you are buying art prints from countries other than the United States, you may encounter print sizes you’re not familiar with: A2, A3, A4, and so on.

These sizes are part of the A series in the ISO 216 standard, which is used extensively around the world. The measurements are listed, along with its conversion to imperial units and corresponding Frame Destination artwork and frame size.

There are no standard US frame sizes that exactly match these ISO 216 paper sizes, so a custom frame is the best way to get a perfect fit. However, there are also “close enough” standard sizes that may work with your artwork; note that some sizes may still be hard to find or too large for the type of art.

Artwork Size Mat Window Opening Picture Frame (Inside)
A2
420 mm x 594 mm
16.5 x 23.4
(16 1/2 x 23 7/16)
16 1/4 x 23 3/16 21 1/2 x 29 7/16
Close: 22 x 30
A3
297 mm x 420 mm
11.7 x 16.5
(11 3/4 x 16 1/2)
11 1/2 x 16 1/4 16 3/4 x 22 1/2
Close: 18 x 24
A4
210 x 297 mm
8.3 x 11.7
(8 5/16 x 11 3/4)
8 1/16 x 11 1/2 13 5/16 x 17 3/4
Close: 16 x 20
16 x 24 15 3/4 x 23 3/4 20 x 28
24 x 32
20 x 24 19 1/2 x 23 1/2 24 x 28
28 x 32
24 x 36 23 1/2 x 35 1/2 28 x 40

Frames for Unique Print Sizes

For those planning on framing artwork with a unique size, order a custom frame to get an exact match for your print. The custom builder allows you to enter your artwork size and, using these dimensions, automatically calculates the recommended mat window opening and frame size. If you need help calculating your custom dimensions, there are tools available online that can convert from metric to imperial measurements and vice versa. You can also contact us at 972-479-1188 or at [email protected]

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26 thoughts on “Guide to Frame and Mat Dimensions for Common Print Sizes”

  • Joyce Morier

    I have a vertical painting image of 11x15. What best matt size should I use?

    Reply
    • Laura W

      It really just depends on what you want to see. Our mats are custom cut to any size you'd like, so you'll need to choose a border size and it'll dictate your mat size from there. If you'd like 2" borders, the mat would wind up at 14" x 19", just for example.

      Reply
  • Liam Gibson

    I have a A3 size print and the wording is close to the edges what size matting will I need and what size frame to hold this art work?
    .k

    Reply
    • Laura W

      A3 paper is about 11.69" x 16.53". The closest this comes to is 11-11/16" x 16-17/32" in fractional form for framing. It won't be exact, but this fairly close to the opening for your mat window. How big you want your borders to be will determine the outside size of your mat.

      Reply
  • Barry C Collins

    Very helpful article ? thanks so much!!!?‍♀️

    Reply
  • Bonnie Smith

    when a mat has an outside dimension of 24" X 36", what is the live area within that mat?

    Reply
    • Laura W

      Hi Bonnie - the inside dimensions are determined by the artwork. Our company will allow you to customize to any inside mat size you'd like. You'll find precut mats for sale at other places that have a 20" x 30" cutout in a 24" x 36" mat, but it can vary depending on the manufacturer.

      Reply
  • RobinB

    If I want to frame a poster size 16.5 x 23.25, what size mat and frame would you suggest?

    Reply
    • Joely Rogers

      Hi Robin, it really depends on your preferences and wall space. For a poster that size, I'd select a mat border border between 2 - 4 inches. Keep in mind that the larger the mat border, the bigger the materials and greater the cost. The website can walk you through how to do a custom mat opening or you can call or office (972-479-1188) Monday-Friday between 8AM - 5PM Central and customer service will help you out.

      Reply
  • Liviu Vlaic

    I am selling quotes printed on canvas. What size with / without borders would be the most desirable?

    Reply
    • Laura W

      It really just depends on what aesthetic you're going for. On our site you'll find common sizes in the Picture Frame section, but you can customize to any option you're wanting.

      Reply
  • Dianne

    I have an 11x15 family photo. I also would like to do a matt and a larger frame. My question is: What size matt and frame should I get?

    Reply
    • Laura W

      Hi Dianne - It depends on what you'd like to see. If you'd like 2" mat borders all around, it would make your outside mat dimensions and your inside frame dimensions 15" x 19".

      Reply
  • tiff

    I want a large frame 24x36 but she can only make my photo in 17x22
    can I use that size photo in a 24x36 frame?

    Reply
    • Laura W

      Hi Tiff - Certainly, you can add a mat board with outside dimensions of 24x36, and a window cut to the art dimensions that you'd like to see (17x22 if you want to view the full piece, or 16 3/4" x 21 3/4" window if you need it to overlap the photo a little bit). You can select a mounting board as well to go behind your photo at 24x36 and you'll actually use that to keep your photo flat and centered. Here's some links to our mat and mounting pages: Frame Destination Mat Page Frame Destination Mounting Board

      Reply
  • Peggy McGuire

    I just completed a puzzle and it's a gift. It's 335x480mm. Converted it looks like it's 13.18 x 18.89 inches. For this what size frame and mat would be appropriate.

    Thanks in advance

    Reply
    • Laura W

      Hi Peggy - Converted to the standard system, the closest it seems to be is 13 3/16" x 18 7/8". The outside dimensions of the mat will depend on how large you're wanting your mat borders. You could do a mat with a window that either overlaps the puzzle, or one that just surrounds it without covering any of it. To overlap, you'll want a window of about 13 1/16" x 18 3/4", and then a 1" border would make the outside of the mat (and the inside of the frame) 14 1/16" x 19 3/4". If you just wanted to surround the puzzle and not use an overlap, you could do a window of 13 1/4" x 18 15/16". With a 1" mat border, that would make the outside mat dimension (and inside frame dimension) 14 1/4" x 19 15/16". It's really up to how you'd like to see it.

      Reply
  • Lisa

    What size frame should I get for a 24" x 36" puzzle?

    Reply
  • Tricia Crouch

    What size frame should I choose if I have an 18 x 24 mat?

    Reply
    • Laura W

      Hi Tricia - We build frames from the inside dimensions, so if the outside dimensions of your mat are 18" x 24", you can order an 18" x 24" frame. Thanks!

      Reply
  • Lexi

    I have an 18x24 print and want to place it in a floating frame but don’t know what size of frame to get?? Thank you!!!

    Reply
    • Laura W

      Hi Lexi - On our site, it'll ask you for the canvas dimensions and then it will automatically add an inch. So the floating frame dimensions will be 19x25. This allows for a 1/2" float space around the canvas. Of course, you can alter these a little bit if you'd like a smaller or larger space around your print. Our customer service team will also be able to help with the dimensions. They're available via phone (972-479-1188), live chat and email ([email protected]) during normal business hours.

      Reply
  • Mattie

    I have a print 14 3/4 x 14 3/4. What size frame should I ourchase

    Reply
    • Laura W

      Hi Mattie - We size our frames from the inside, so if you're not wanting a mat, the frame would just need to be the 14 3/4" x 14 3/4". If you'd like to add a mat, the borders would determine the frame size.

      Reply
  • Evany Holland
    Evany Holland May 9, 2020 at 9:46 pm

    I have a 50 x 70 frame and want to buy a poster to go inside. Would A3 fit this frame?

    Reply
  • Theresa

    I have 24x36 piece of artwork. The original frame fell and broke. All I can find is 24x36 sized frames. I'm afraid my artwork will not fit. What size frame should I order? 24x36 has been the largest I've seen thus far on sites.

    Reply
  • Jb

    I have a 30 x 40 horizontal photo I need a frame for. I did not know how large of a frame would be best for this size or if there were any available in that size.

    Reply
    • Laura W

      Hi Jb - On our site, we size from the inner dimensions, so if you're not wanting a mat around the photo, you could order the exact 30" x 40".

      Reply
  • George Cannon
    George Cannon May 23, 2020 at 4:58 am

    Most current inkjet printers accept 13x19 and 17x22 paper sizes. Why are these not represented? I am currently buying 18 x 22 frames with pre-cut mats for 12 x 18 images. A 13x19 printed with a 1" border surround fits this window perfectly.

    Reply
    • Laura W

      Hi George - Thank you for your feedback. You can customize any frame and/or mat on our site to the sizes you're suggesting.

      Reply
  • Marci

    Hi! I am trying to get a frame or shadow box to put on 2 size canvases - the sizes of the canvases are 11x14 and 7x7. What size frames OR shadow boxes do you suggest I get for each? I am having trouble finding the correct sizing and keep having to do returns! Thanks!

    Reply
    • Laura W

      Hi Marci - You could try a canvas floater frame specifically made for canvases, but it won't have the glazing in front of it. As far as our sizing goes, we size from inside the frame, so you'll want an exact 11"x14" or 7"x7" shadowbox or frame, whichever you're choosing. The most important piece will be the depth. The shadowbox or frame will need to be deep enough for the canvas to sit in, but not so deep that there's a ton of extra space inside of it. Our customer service team can certainly help you out through the process as well. Thanks!

      Reply
  • Heidi

    Hi,
    I have an art poster that measures 25"H X 30"W. What size frame will I need?

    Reply
    • Joely Rogers

      Heidi, if you aren't using a mat board, you can order a 25" x 30" frame. We cut the frame so that it's 1/8" inch larger to fit the artwork. Keep in mind that it will overlap the picture by 1/8" inch on all sides. If you do want to use a mat, I suggest you take a look at our https://www.framedestination.com/blog/picture-frames/picture-frame-dimensions-explained if you aren't familiar with mat boards. The website can calculate a custom mat board size. You can also either email [email protected] or call our office at 972-479-1188 for guidance on mat selection.

      Reply
  • Laura M Kay-Roth
    Laura M Kay-Roth June 9, 2020 at 3:03 pm

    Hello. I was gifted a torn paper collage, landscape orientation. Width is 20" with a half inch white border on the bottom and sides. Height is 19" and the image runs to the top edge with no border. I do not know whether to get a 20 x20 frame no mat, or 20x24 with mat-- although the mat would be too small also. Could I float the artwork in 20x24 under glass? I know it's a complicated size and I appreciate your assistance.
    Laura
    240-505-9758

    Reply
    • Joely Rogers

      Hi Laura, yes, that's a tough one because the image goes all the way to edge at the top. You could crop a bit off the top; however, I'm familiar with collage work and there's usually not much, if any, dead space to crop. I would either mount it on acid free foam with no mat or float it on a piece of uncut acid free mat board. Hope that helps!

      Reply
  • Allen

    Hello, I'm reframing a piece of Bar Glass 19 3/4" wide by 16" tall. what size frame will work best since it is glass.

    Reply
    • Joely Rogers

      Allen, we cut our frames 1/8" larger on all four sides to accommodate what's going in it. So I recommend ordering the glass size.

      Reply
  • Lisa

    I just purchased an A4 and I’m clueless as to how to frame it with a mat border. I would actually like a 3 to 4 inch border. I did notice that the inside border sizes were smaller than the print itself unless I misunderstood the graph. What size would you suggest and how do I go about ordering the right size border? This is all very confusing.

    Reply
    • Joely Rogers

      Lisa, most prints come with a white border around the image. The easiest way to mat it is by cropping the image a small amount, typically 1/8" on all four sides. The term for this is "Overlap", which refers to how much of the artwork will be covered by the mat board. A standard mat window opening overlaps anywhere from 1/8" – 1/4" of the artwork. If you want to do that, then measure the image (not the overall print).
      Our website has a "Customize" feature on the frame ordering page where you can put in your image size and choose how much you want it cropped. You can then choose the size of your mat border. It might be easier for you to call our customer service office at 972-479-1188. They are open Monday - Friday, 9AM - 5PM Central Standard Time and can walk you through the order.

      Reply
  • Caroline

    I have a 24 x 26 poster I want to frame. However, I am having no luck finding such frame, or if I do it's very costly. I assume I'll need to order a larger frame for this, but what size mat should I use?

    Reply
    • Laura W

      Hi Caroline - You can customize any of our frames to the size you're needing for this. As far as a mat goes, it really just depends on how you'd like it to look. With something this large, I'd stick to 2-3" borders. If you went with 2" borders all the way around, the outside mat dimensions, and inside frame dimensions would be 28" x 30".

      Reply
  • Amanda

    I have a picture I want to get framed but cant find a frame that is 12.6 by 12.6 so what should I go up to

    Reply
    • Laura W

      Hi Amanda - The closest 1/8" is 5/8", so you do a frame that is 12 5/8" x 12 5/8". It's slightly larger than 12.6, but should do the trick. You can order any of our frames at this size. Thanks!

      Reply
  • ebony harris

    I have a 28×32 poster. What size frame do I need?

    Reply
    • Laura W

      Hi Ebony - If you are not using a mat with this, you would need a 28x32 frame. We size based on the inside of our frames.

      Reply
  • Jessica

    I have a poster that is 18x18 what size frame would i need to fit it properly?

    Reply
    • Laura W

      Hi Jessica - If you are not using a mat with this, you would need a 18x18 frame. We size based on the inside of our frames.

      Reply
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