DIY Postcard Ledges: How We Hung and Repurposed Shelves for a Kid’s Room

We finally installed the postcard ledges in our first house’s office that we’d been saving for over two years. These shallow shelves work great as display ledges and, as you’ll see, they translate perfectly into a playful, educational display for a child’s room. Below I’ve summarized how we adapted the ledges for this space and shared practical tips for measuring, mounting, and styling them.

We originally documented the full build and how-we-made-them process in a longer post (see full how-we-made-them process in the original post). For this room, here’s what we changed and why.

• Measure first: We measured the dresser that would sit underneath the ledges. At first the shelves were a bit too long and looked visually top-heavy, so we shortened them to better relate to the furniture below.
• Adjust the length: Using a miter saw, we cut the ledges down to be 2″ narrower than the dresser. That small difference makes the arrangement feel balanced and intentional.

• Choose height intentionally: We hung the lowest shelf 16″ above the dresser. We held the shelf up at a few different heights and picked the one that looked right to the eye—then used a level to make sure it wasn’t crooked.

• Secure mounting: We used 2.5″ screws in three spots to anchor each shelf. For very light displays—postcards, flash cards, small prints—screws that go through predrilled holes in the shelf are usually sufficient. If you plan to load shelves with heavier items, use appropriate wall anchors or toggle bolts for added support.

• Use a guide for consistent placement: We taped a yardstick to the wall (plumbed with a level) and used it as a left-edge guide so every shelf aligned perfectly.

• Space evenly: Each shelf was hung 9″ apart. Consistent spacing gives a clean, intentional look and leaves room for taller items on each ledge.

• Small celebrations: There were a few high-fives along the way—DIY projects can be genuinely fun when the setup goes smoothly.

Once the shelves were mounted, I brought out two treasured boxes of flash cards I’d been saving. These bright, illustrated cards instantly transformed the ledges into a colorful, low-cost gallery that also doubles as a subtle learning display for our daughter.

Why flash cards and postcards work so well on ledges:
– They add instant color and interest without needing frames.
– The shallow depth of the ledge is perfect for flat items.
– For a child’s room, they create a gentle learning zone—letters, animals, numbers—without making it feel like a classroom.

Clara loves counting the animals on each shelf, finding the ones we call out, and recognizing the letters that start their names. Small daily interactions like that make the display both decorative and educational.

Final thoughts and extra tips:
– Always use a level and measure twice before cutting or drilling.
– Pre-drill holes in wood shelves for cleaner screws and easier mounting.
– If you’re uncertain about wall structure, use a stud finder or consult local mounting guidelines to choose the right anchors.
– Repurposing items—postcards, prints, flash cards—keeps costs down and lets you refresh a room without buying a lot of new decor.

Have you updated or repurposed shelves or ledges in a new room recently? It’s surprisingly rewarding to tweak something you already own and give it new life in a different space. If you’re planning a similar project, focus on balanced proportions, secure mounting, and playful styling to make the most of your ledges.