If you'e looking to oder a photo frame, knowing what size frame you need will help you find the perfect size for your pictures. Since picture frames come in a variety of shapes and sizes, choosing the right one for you depends on the size of your picture, artwork, poster, certificate or whatever you will be framing. Finding the right moulding or frame style depends on your personal favourite preference.
Edited October 2025
Our helpful guide will help you narrow down the options on offer to choose the picture frame that is the perfect size for you.
If it's a bespoke picture frame you need, it's always best to request a free quote on a made-to-measure frame. Here at Abstract House, our team of professional in-house framers ensure our fine art collection if framed to perfection. We follow the best quality British framing standards of the Fine Art Trade Guild. We pride ourselves in our quality and craftsmanship, offering premium framed art at affordable prices.

Which Frame Style Should I Choose?
Choose Your Favourite Style
As art and framing elevates a space, we always recommend to choose a style with your heart rather than trying to match your cushions or curtains. But with so many different options of frames available to choose from, how do you know which frame is best? Did you know that alongside our signature frame mouldings, we also offer a choice of 3,000 different frame mouldings and mountboard colours and styles. Your first port of call is to browse the different colours and types on offer, such as Black Wooden Frames, so you can begin to define your favourite styles.
Have a look at our collection of Framed Art Prints to help you browse the various colours and options available.

Depending on the type of frame you are looking to buy will determine how you measure the picture for your frame. Have a browse through our range of guides below to help you find the perfect photo frame, multi-aperture frame or freestanding frame.
Looking for a company that will print and frame your art?
Discover our framed art range where we offer complimentary framing, so your wonderful new artwork will arrive framed and ready to hang on your wall. Get in touch to find out more and discuss your project today.
- How to Find the right size Picture Frame
Now, let’s start by taking a look at the process to find your perfect sized frame.
Photo Credit: Abstract House Fine Art Collection Framed
How to measure for a picture frame
Measuring for a frame properly is the most important factor to ensure your photo or picture fits the frame well. By choosing the right frame size, you will ensure the picture looks as beautiful as it should in the frame when displayed.
Some of the considerations to make are:
- The height of your picture
- The length of your photo or artwork
- The depth of your picture
- Whether you would like to add a mount/passe-partout
- The space available to hang or display the picture
Once you know the answer to these five points, you will be able to choose the perfect sized frame for your picture. The overall size of your frame is the only thing that cannot be changed once you decide on a size. You can always choose to add a mount/passe-partout afterwards or even swap the photo with a new one if desired. So, getting the size right is one of the most important factors to ensure a good fit.
When measuring your picture, it’s always good to start by measuring the outer edges of the picture. This ensures your picture will fit in the frame without requiring any trimming. Then, you should measure the ‘picture size’, which means the actual size of the picture without any bleed/white border (if applicable).
Take a look at our simple guide which we have created to help make finding the ideal frame size even easier.
Photo Frame Size Guide
Here is a standard picture size guide to assist you in finding the perfect frame fit:
Length (cm, inches) | Width (cm, inches) | Standard Picture Size | Which Frame? |
21 cm, 8 .25 inch | 29.7 cm, 11 .75 inch | A4 Size | A4 Picture Frames |
29.7 cm, 11 .75 inch | 42 cm, 16 .5 inch | A3 Size | A3 Picture Frames |
42 cm, 16 .5 inch | 59.4 cm, 23 .375 inch | A2 Size | A2 Picture Frames |
59 .4 cm, 23 .375 inch | 84 .1 cm, 33.125 inch | A1 Size | A1 Picture Frames |
30 cm, 11 .81 inch | 30 cm, 11 .81 inch | 30 cm Size | 30 cm Square Picture Frames |
40 cm, 15 .75 inch | 40 cm, 15 .75 inch | 40 cm Size | 40 cm Square Picture Frames |
50 cm, 19 .69 inch | 50 cm, 19 .69 inch | 50 cm Size | 50 cm Square Picture Frames |
21 cm, 8 .27 inch | 30 cm, 11 .8 inch | 21 x 30 cm Size | 21 x 30 cm Picture Frames |
30 cm, 11 .8 inch | 40 cm, 15 .7 inch | 30 x 40 cm Size | 30 x 40 cm Picture Frames |
40 cm, 15 .7 inch | 50 cm, 19 .7 inch | 40 x 50 cm Size | 40 x 50 cm Picture Frames |
50 cm, 19 .7 inch | 70 cm, 27 .56 inch | 50 x 70 cm Size | 50 x 70 cm Picture Frames |
70 cm, 27 .56 inch | 70 cm, 27 .56 inch | 70 x 70 cm Size | 70 x 70 cm Picture Frames |
100 cm, 39 .7 inch | 100 cm, 39 .7 inch | 100 x 100 cm Size | 100 x 70 cm Picture Frames |
What Choices Are There For Mount Size?
Choosing a bespoke or special mount size for your picture can make all the difference. Interior design trends now focus on larger, bespoke mount aperture sizes to accentuate the artwork or picture while adding a contemporary aesthetic to a space. Since we design and cut all of our frames and mounts in-house, choosing a bespoke mount with Abstract House is simple.
Here are some popular examples of the different size mounts that are available:

How Can I Display My Photo Frames?
With over 15 years experience in handcrafting art and picture frames, we have worked with some of the world's most coveted interior designers and architects.
We have framed pictures for the likes of Landmark Hotel, Bentley and Buckley Gray Yeoman.

Photo Credit: Collins Construction. Abstract House bespoke printing and framing service for Patrizia European Headquarters in London.
What If My Picture Doesn't Fit?
Here at Abstract House, we offer free exchanges on our framed artwork orders in the UK, so you can simply contact our helpful Customer Support team so we can help you find the right sized picture and arrange your exchange.
Get In Touch
If you'd like any help, our friendly customer service team and art consultants are on-hand to assist you. With experience in finding the right sized art and frames, let our team guide you with any questions may have.