DIYdiy projects

DIY Triangle Shelves

by Francesca Stone

DIY Triangle Shelves
Hey everyone! I’m Anusha from the blog Fish & Bull. I love dreaming up DIY projects for my home, which I share with my college sweetheart. When I got my art degree I never imagined I would be using it for home decor, but I’m a DIY addict for life. If there’s one thing I know, it’s that you don’t need a lot of time, money or skill to have a beautiful home that you love.

If you’re anything like me, then you’re always looking for cute shelving ideas to display your plants and tiny collectables. DIY triangle shelves are a great way to display those little trinkets and photos that clutter up your space, and you can arrange them on your walls however you like. My shelves are 2″ deep for small items, but you can make your shelves wider to hold more things. These DIY shelves are a quick little building project for beginners that you can whip up on a weekend. I have zero carpentry skills so if I can do it, so can you!

For my DIY triangle shelves, I used knotty cedar because I liked the warm tone of the wood (and the name), but you can use any wood you prefer, like pine. For 3 triangle shelves, I bought 2 blocks of knotty cedar that measured 1″ x 2″ x 8′ and had a little left over. You’ll need a mitre saw to build these shelves, so borrow one from a friend — I had my guy cut it for me at his work studio.

DIY Triangle Shelves


+ Mitre Saw

+ Wood (I used knotty cedar)

+ Measuring tape

+ Wood Glue

+ Nails

+ Hammer

+ Sandpaper

DIY Triangle Shelves

DIY Triangle Shelves


  1. Measure the wood into (3) 12″ pieces and mark with a pencil.
  2. On the mitre saw, cut the wood on a 30 degree angle. Flip the wood over 180 degrees and cut it again at a 30 degree angle.
  3. Once you have all your wood pieces cut, lay out the triangle shelf in the configuration you like and mark with a pencil 1/2″ from the edge where your nails will go.
  4. Pre-hammer 2 nails into each piece of wood. This will make it much easier to nail the shelf sides together. (If you have a nail gun, you can skip this step.)
  5. Add wood glue to the end and glue two pieces together. You don’t need to wait for the glue to set as this will take hours and will fall apart if you nail it after it’s dried (trust me, I’ve tried).
  6. Nail the wood blocks together. I did this against a wall to keep the wood from shifting. It’s also way easier if you have someone else hold the pieces together for you while you hammer away to keep the blocks from shifting. If the sides don’t align perfectly, don’t panic!
  7. Repeat for the remaining two sides of the shelf.
  8. Clean up any excess glue with a wet washcloth or a damp Q-tip for tight corners.
  9. Finally, using sandpaper, clean up any edges that aren’t aligned perfectly to get a nice sharp edge. For easy sanding, wrap sandpaper around a scrap block of wood and use that as your sanding tool.

You can finish the shelves with a clear coat of varnish, paint or wood stain, but I kept my shelves bare for that warm cedar look. To hang up the shelves on your wall, use one nail in the top corner of the triangle shelf.

DIY Triangle Shelves DIY Triangle Shelves

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