Standard Picture Frame Sizes: The Complete Guide (With Mat Sizes)

Guide · 5 min read

Framed fine art print with a matFraming guide

Frames are sold in a handful of standard sizes, and if your print matches one of them, framing is cheap and quick. If it doesn't, you're paying for custom framing or trimming your art to fit. This guide covers the common frame sizes, what mat openings go with them, metric equivalents, and how to order a print that drops straight into a frame you can buy anywhere.

One note up front: IMPRESO doesn't sell frames. We make fine art prints to standard frame sizes so they fit off-the-shelf frames from any framing store or online retailer.

13Common US frame sizes
¼ inTypical mat overlap per side
24 inMax width for custom sizes

01

How frame sizes are measured

A frame's listed size is the size of the artwork it holds, not the outside dimensions of the frame. An 11×14 frame takes an 11×14 piece of paper (or mat). The outside of the frame will be bigger, depending on how wide the moulding is.

That means:

  • No mat: order a print the same size as the frame. An 11×14 print goes in an 11×14 frame.
  • With a mat: order a print to fit the mat opening, and the mat fills the rest of the frame.

02

Common picture frame sizes

These are the sizes you'll find stocked at most framing shops, big box stores and online.

Frame size (in) Approx. metric (cm) Common uses
4×6 10.2×15.2 Snapshots, desk and shelf
5×7 12.7×17.8 Desk frames, small gifts
8×10 20.3×25.4 Portraits, small art prints
8.5×11 21.6×27.9 Certificates, diplomas, letter-size art
11×14 27.9×35.6 Small wall art, matted 8×10s
11×17 27.9×43.2 Tabloid posters, art prints
12×12 30.5×30.5 Square art, album covers (12 in record sleeves are slightly larger)
12×16 30.5×40.6 Phone photos, small posters
12×18 30.5×45.7 Camera photos, posters
16×20 40.6×50.8 Classic wall art, matted 11×14s
18×24 45.7×61.0 Posters, large art
20×24 50.8×61.0 Large fine art, matted 16×20s
24×36 61.0×91.4 Large posters, statement pieces

You'll also see 24×30, 27×40 (the standard US movie poster) and 30×40 at larger sizes, though they're stocked less often.

03

Standard matted frame sizes

A mat is the cardboard border between the art and the frame. It gives the work breathing room, keeps the print from touching the glass, and makes a small print look more substantial on the wall.

Mats in ready-made frames come with standard openings. The typical pairings are:

Frame size Mat opening fits print Typical cut opening
5×7 4×6 about 3.5×5.5
8×10 5×7 about 4.5×6.5
11×14 8×10 about 7.5×9.5
12×16 8×12 about 7.5×11.5
16×20 11×14 about 10.5×13.5
18×24 12×18 about 11.5×17.5
20×24 16×20 about 15.5×19.5
24×36 20×30 about 19.5×29.5

Notice the opening is a little smaller than the print it's meant for. Mats overlap the edges of the print, usually by about a quarter inch on each side, so the paper can be taped behind the mat without showing. That small overlap means you lose a sliver around the edge of your image, so keep important detail away from the very edges.

Exact openings vary by brand. Before you finalize a print size, measure the opening on the mat you actually have.

Framed fine art print
Standard sizes drop straight into off-the-shelf frames.

04

Metric frame sizes and the inch vs centimeter trap

Outside the US, frames are sold in centimeters. Common European and metric sizes include:

  • 13×18 cm
  • 18×24 cm
  • 24×30 cm
  • 30×40 cm
  • 40×50 cm
  • 50×70 cm
  • 60×80 cm
  • 70×100 cm

Paper-based "A" sizes are also popular for frames:

A size mm Inches (approx.)
A4 210×297 8.3×11.7
A3 297×420 11.7×16.5
A2 420×594 16.5×23.4
A1 594×841 23.4×33.1

Watch out for numbers that look the same in both systems. An 18×24 cm frame is about 7×9.5 inches, while an 18×24 inch frame is a large poster frame. Retailers selling globally sometimes list both, so read the units.

Metric and imperial sizes almost never line up exactly. A4 is close to 8.5×11 but taller and narrower, and a 30×40 cm frame is close to 12×16 inches but a little short on both sides. If you've bought a metric frame, order a custom print size to match it rather than forcing an inch size in.

05

How to choose a frame size

Start with the wall

Measure the space first. For art over a sofa, bed or console, a common guideline is to make the art (including frame) about two thirds the width of the furniture. A 16×20 can look lost over a full-size sofa, while a 24×36 fills the space.

Decide on mat or no mat

  • Matted looks gallery-like and classic. It's the usual choice for fine art prints and black and white photography.
  • Full bleed (no mat) looks modern and lets the image do the work. It's common for posters and large color photographs.

A mat also lets you put a smaller, less expensive print in a bigger frame. An 8×10 print in an 11×14 matted frame reads as a much larger piece on the wall.

Match the image's shape

Most frame sizes have their own aspect ratio. An 8×10 or 16×20 is 5:4, which is squarer than a 3:2 camera photo, so some cropping is unavoidable. If you shoot on a camera and don't want to crop, look at 12×18 or 24×36 frames (both 3:2). For phone photos, 12×16 and 18×24 (both 4:3) are the closest match. Our standard photo print sizes guide covers the pixels you need for each, and the free file check on our order page shows the crop live.

Plan a gallery wall

For a grid or salon-style wall, stick to two or three sizes and one frame style. Common combinations are 8×10 and 11×14, or 11×14 and 16×20. Keep spacing between frames consistent, usually 2 to 3 inches.

06

Print size vs frame size: what to order

This is where most framing mistakes happen. Use this rule:

  1. Frame with no mat: print size equals frame size.
  2. Frame with a mat: print size equals the size the mat is designed for (slightly larger than the opening).
  3. Custom mat: decide the print size first, then have the mat cut to it.

Some examples:

  • You bought an 11×14 frame with a mat. Order an 8×10 print.
  • You bought a 16×20 frame and want no mat. Order a 16×20 print.
  • You bought a 24×36 poster frame. Order a 24×36 print.
  • You have a metric 50×70 cm frame. Order a custom print at about 19.7×27.6 inches, or have a mat cut for a standard inch size.

07

Print sizes we make at IMPRESO

Our standard sizes match the most common US frames: 8×10, 8.5×11, 10×12, 11×14, 12×16, 16×20, 18×24, 20×24, 24×24, 24×32 and 24×36. Each is printed as a fine art giclée on Epson Signature Worthy paper with archival pigment inks, and checked by hand in our Ridgewood, Queens studio. Custom sizes up to 24 inches wide are available by quote, which is handy for metric frames or vintage frames you've picked up.

Prices start at $30 for an 8×10 on Ultra Premium Luster. Full prices by size and paper, plus volume discounts for gallery walls, are on our pricing page.

08

Quick framing checklist

  • Measure the frame's mat opening or inside rabbet, not the outside.
  • Decide mat or no mat before you order the print.
  • Keep important detail away from the edges if a mat will overlap.
  • Check units on any metric or imported frame.
  • Choose a paper that suits glass: luster and matte papers both frame well.

Get a print that fits

Tell us the frame size and we'll make a print that drops right in. There's no minimum order, standard turnaround is 3 to 5 business days, and pickup at our Ridgewood studio is free. Build your print, choose your size and paper, and use the free file check to see exactly how it will look.

Build your print → See giclée printing →

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luis aguilera

Luis Aguilera was born Caracas, Venezuela and then moved to Miami, Florida as a teenager. A street artist by nature, Aguilera has always been intrigued by the innovative ways that photography can capture a moment, especially shots near water. With the use of various DJI drones, Aguilera has been able to capture moments that were only available to those who had access to a helicopter. With his drone photography, Aguilera has been able to capture stunning photos of the oceans in different parts of the world. His series, “Thalassophile”, which means lover of the oceans, has explored the beaches of Miami Beach and Fort Lauderdale in Florida as well as Ocho Rios, Jamaica. He’s also captured the exotic beaches in Waipo’o Valley, Waimea Beach, and Two Step in Hawaii. Mesmerized by the beachside scene and its ocean-adjacent atmosphere, this series focuses on the immensity and power of the ocean and how small people are in comparison. Capturing moments that feel authentic and true to the experience of being by the ocean, Aguilera’s series shows how no matter how different humans are, we are all captured the same 400 ft. in the air. The series also highlights how all people end up doing the same things when they see and interact with the water – whether that is sun bathing, lying in an inflatable tube, or enjoying the weather with friends, drinks and some food. The collectiveness of the aerial shots emphasize how people not only react to the ocean in similar ways, they also all love to do the same things at the beach. As Aguilera continues to focus on his drone photography and his “Thalassophile” series, he is looking to explore other regions as well. His next photos will be of the tulip fields and city of Amsterdam, Holland. He will also continue to explore the sands of Miami Beach and this summer the Caribbean beaches of the Dominican Republic. If you’re interested in working or collaborating with Luis Aguilera, please contact him at luisaguileraphoto@gmail.com.

 

http://www.luisaguilera.me
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Standard Photo Print Sizes: Dimensions, Aspect Ratios and Resolution Guide