DIY Giant Number Photo Collage With Square Prints

With a certain someone’s 2nd birthday just days away, it’s time to create one of my favorite birthday traditions. The giant number photo collage.

Number 2 photo collage for a second birthday celebration

I’ve put this birthday year photo grid on the wall of our dining room every year for each of the kids’ special days. It’s so much fun to make so today, let’s make the number collage together.

Here’s the dining room on a regular day, where the number photo collage will go:

Dining room with a chalk painted buffet with American flag above it

Supplies List

The supplies list for this project is super minimal:

3M mounting squares for hanging pictures

Select Your Photos

This is the hardest part of the whole process, sifting through all those memorable moments and choosing photos. 

For each birthday photo collage I’ve made, I only use pictures from that year. So when Rowan turned one, I only chose pics from her first year. When she turned two, I selected images from year one up until her 2nd birthday. You get my point.

Since all the photos of our kids live on our phones in a shared album, I sifted through them all and added all the ones I liked to a “birthday” album. I always select WAY more photos than I need. I like to place an order for around 100 prints. Typically, I only need about 50-75 prints, depending on the different photo numbers (or different shapes and picture letters) I’m making. What can I say, I’m a girl who likes to keep her options open!

After I’ve picked all those top-notch photos and popped them into an album, I weed through them to get the number down. It’s so hard to pare down the images. So so hard. But eventually, I got that album of 200 photos down to a reasonable 100. Then it’s time to order. 

The first number photo collage I did for Rowan’s first birthday:

First birthday number photo collage with eucalyptus and birthday cake

Order Square Prints

There’s something about the square prints that creates an easy shape of a number. I don’t feel like 4″ x 3″ or 5″ x 7″ prints would create the same type of number shape collage as the square prints do. For the size of photos, I always order the 4″ square prints with a white border from Parabo Press. 

Why I Love Parabo Press

Oh how I love thee, Parabo Press, let me count the ways! I have ordered quite a few photo prints from there, including the family photos hanging above our vintage steamer trunk in the dining room. Here are a couple of (non-sponsored) reasons why. One, they are a small 100% women-run company in Wisconsin. Two, the prints are eco-friendly. The thick matte paper used for their square prints is certified by the Rainforest Alliance Program for FSC Standards. (Insert mic drop here.)

Parabo Press Prices

The prices at Parabo are also pretty reasonable. To get a pack of 20 square prints it costs $10. Then, every additional square print you add to your order is $0.25. If you sign up for emails, they often send coupons for discounts, promotional materials, and free shipping. I almost always take advantage of the free shipping coupon option.

Rowan’s fifth birthday number photo collage (also note our ever-shifting dining room setup):

Fifth birthday number photo collage with balloons and birthday presents

Parabo Press Shipping

Parabo Press’s printing and shipping time is also relatively quick, especially considering the prints are traveling across the country from Wisconsin to Vermont. I ordered these prints on August 17th and they arrived on August 25th.

However, I do usually pay extra and upgrade to expedited shipping. Mainly because expedited shipping is the only option that includes a tracking number. I’m also a girl who likes her tracking numbers!

Cropping Photos

One BIG tip when ordering square prints is to double-check the framing. It’s happened so many times. I’ve uploaded all my high-resolution photos to Parabo Press and hit “add to cart” without double-checking where the photos are cropped. The auto feature to crop photos is super helpful but I always seem to end up with someone’s head cut off. Often mine, go figure! So check those square print crops.

Determine Number Photo Collage Layout

With a box of photos in hand, it’s time to determine the layout and get that photo wall up. Let me pause here while you ooh and ahh over the adorableness that is Beatrix’s second year.

4" square prints with a white border ordered from Parabo Press

The first step is to determine the height and width of the number photo collage. Measure your wall space and get an idea of how much space you want the photo grid to take up. I like mine to go pretty much from the top of the dining room buffet to just below the ceiling, and from the lamp to the beverage station.

Next, start laying out photos on a table to create a photo collage number shape. It’s helpful to lay the tape measure on the table as well to remind you of your size constraints as you build your shape of a number.

The square prints are kind of like pixels. Think of your custom shape (be it a number, letter, or even a heart shape collage), as to what it would look like on a computer zoomed way in. An easy way to determine your number shape is to search “pixel numbers” on Google. There are lots of layout options to choose from. Use those images like collage templates. You can even search for other shapes to use as a photo collage template, not just a number.

Determining the shape of the giant number photo collage and selecting the photos for the grid

Once you have your number collage laid out, now is a great time to adjust the photos in the collage. I like to vary the photos by season, others in the photos, age (which is most noticeable when the birthday girl is younger!), etc. I love a personalized photo collage and this is a great time to tweak the photo selection before hanging it on the wall.

Once you’re happy with your number photo collage and the photo layout, now’s the time to hang.

Hang The Number Photo Collage

Hanging a photo collage is like a gut check for your personality type. 

In my earliest days of creating a number shape collage for Rowan’s first birthday, and as an enneagram 1 (which explains EVERYTHING), it took me hours. Measuring to make sure it was perfectly centered, breaking out the laser level, perfectly aligning each and every square, and readjusting to make sure each square print was perfectly aligned with its neighbor. 

Now, I realize no one notices if it’s a little off-kilter so I go with more of a wing-it approach. Rowan’s sixth birthday collage:

Sixth birthday number photo collage with birthday bunting, balloons and gifts

Number Photo Collage Hanging Supplies

The supplies needed to hang the photos are pretty straightforward. 

The one necessary supply is an adhesive to attach the photos to the wall. I love the 3M removable mounting squares for this project. They’re small, budget-friendly, and don’t damage your walls.

However, there was one year when I left the photos up for 6+ months. I won’t incriminate myself any further than that and refuse to reveal the actual number. When I took down the photos, the mounting squares didn’t damage the walls but they did damage the photos.

Hanging square photos with 3M mounting strips

Other supplies that are helpful are a level or a laser level.

Start At The Bottom

To start hanging, I take the bottom middle image and hang that first. It’s the only photo that I take time to make sure that it’s centered horizontally and is level. Because I’m using square prints, if the first image is lined up just so, and every image thereafter is carefully butted up against the other images, everything should stay even and level.

Hanging the first photo of the birthday photo grid

After the first image is hung, continue working across until you have a great base.

And Work Your Way Up

Once you start at the bottom, just work your way up. Novel approach!! Just one mounting strip at a time and one photo at a time. Work your way up until you get the grid spacing and number picture collage that you imagined.

Hanging square photos and making a photo grid

And scene!

Giant number 2 photo collage above a dining room buffet

​Number Photo Collage Birthday Tradition

I absolutely love creating this number photo collage for birthday parties. It’s been such a fun tradition and I look forward to it every year. Our friends and family do too!

There was one year that I skipped photo collage making, during the height of the pandemic when I just couldn’t get myself to pull it together, and I was so bummed about it ever since. It’s always the sweetest little birthday gift for our children.

Birthdays aren’t the only celebration or event where you can create a photo number collage (or letter shape, logo shape, custom shape, etc.). Other memorable moments to break out that inner photo collage maker include retirement parties, anniversaries, a senior night, celebrations for athletes or sports enthusiasts, or other special occasions.

Simple first birthday party decor with giant number photo grid and decorating with eucalyptus

You also don’t need to wait for special occasions. Do something like this for home decoration or creative art. I’ve often thought about recycling all the square photos I’ve collected over the years to create a giant collage as bedroom wall art in our daughter’s space. It would be neat to make a letters collage for her initials.

And with that, it’s time to really crack down on second birthday party prep. One piece down and SO many more to go. This year’s theme… “berries.”

PS…So tell me, because I love a good tradition, do you have birthday traditions that have become a non-negotiable in your home too?! 

Posts You May Also Like


  1. This is such a unique idea! I have never seen this before. I plan to send this to my daughter. I love the idea of this collage for birthdays. She may want to use for my grands.

    1. Oh that’s such a sweet idea! I honestly never thought of doing it for myself (others’ anniversaries, yes). That would be fun! I’ll have to do that as well. Let me know if you do it.

Leave a Reply

Your email address will not be published. Required fields are marked *