If you are looking for an easy, inexpensive way to really jazz up a room – then look no further than this tutorial for a DIY Grid Wall.

What makes this project so easy to complete? Well, it’s just a grid molding along a square wall, so your four sides are basically done for you already. Then, it’s just a matter of filling in the rest.

It’s best to draw up a template first of how you envision your grid wall to look. Do you want to go with larger squares or smaller squares? Do you want something more modern or more traditional (with decorative trim)? This will determine how many boards you need. The install process is similar to board and batten.

Office Before

Here are some photos of the office before. Not bad – but really boring.

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Here’s a list of everything you’ll need.


Step by Step – DIY Grid Wall

Navy Office/Lounge with Grid Wall - How to put a Grid Wall - DIY Tutorial

How to Install a Grid Accent Wall from Start to Finish

Total time: 2 days

  1. Measure & Draw Grid Wall Template

    Let’s determine how we want this to look. We measure the wall across and then up and down. We decided to work with the existing baseboard we had (if you don’t have one, you will need to install a baseboard – see step 3). Once we had our template, we could determine the amount of boards we needed to complete the project.

  2. Cut Top & Vertical Boards to Size

    Installing Grid Wall - DIY Tutorial

    Using our template as a reference, we cut the TOP and VERTICAL boards to size with our miter saw. We waited to cut the inner horizontal boards until we had the vertical boards up in place. The baseboards we have are thinner, but we wanted to use thicker boards for this project. So, we cut one end of each vertical board to a 45 degree angle (as shown in pic) so it would lay over the thinner part of the baseboard and blend in. All the vertical boards were the same size, so this made it easy to cut them all at once.

  3. Install Top & Bottom Boards First

    Installing Grid Wall - DIY Tutorial

    Install your Top Board first. This top board is like crown molding, but since it’s just one accent wall, you don’t have to worry about making any mitered cuts. Apply construction adhesive to the back of the board, then secure it to the wall ensuring it is lined up straight with the ceiling. Then, follow up with brad nails. If you don’t have an existing baseboard, you will need to install this next. It should be the same measurement as your top board.

  4. install Vertical Boards

    Installing Grid Wall - DIY Tutorial

    Now, we are going to install the vertical boards to fit in between the top and bottom boards. Starting in the corner and working our way to the other side of the wall. Apply construction adhesive to each boards, and make sure it’s level straight right away before the adhesive sets. Then, follow up with brad nails. Repeat this process for every vertical board at the spacing you determined in step 1. You can also make a spacer board to make this process easier.

  5. Install Horizontal Boards

    Installing Grid Wall - DIY Tutorial

    Now we are just filling in! We measured our wall in between, then drew a mark where each horizontal board would go. We measured EACH space before cutting to ensure we had accurately sized horizontal boards. It’s the same install process as before – apply a little layer of construction adhesive, ensure the board is level straight, then follow up with brad nails. Don’t worry about gaps and nail holes – we will fill all these in soon.

  6. Caulk Gaps & Nail Holes

    Caulking trim - DIY Grid Wall

    Apply painter’s caulk (paintable) along the sides of the moldings to fill in any gaps. Our walls are not straight so we had some large gaps to fill in. This process ended up taking a while but it will give you professional results so take your time here. You can also fill in the nail holes. I use a caulking gun and my finger to spread it. Nothing fancy! Allow the caulk to fully dry and then fill in again as needed. Sometimes, we caulk dries, it shrinks and you notice additional gaps that were not there before.

  7. Sand Caulk

    Sanding wall molding

    Use some light sandpaper to sand off the rough edges from the caulk. This is a messy job but worth it!

  8. Paint

    Now we are ready to paint! I used my small Wooster brush along the insides of the molding, and then followed up with a paint roller for everything else.

Additional Install Photos

Here are some additional photos you can reference.

Final Result!

And that’s it my friend! You now have this beautiful accent wall. It really adds so much character to a room and only takes a couple days to complete.

Navy Office/Lounge with Grid Wall - How to put a Grid Wall - DIY Tutorial
Navy Office/Lounge with Grid Wall - How to put a Grid Wall - DIY Tutorial
Navy Office/Lounge with Grid Wall - How to put a Grid Wall - DIY Tutorial
Navy Office/Lounge with Grid Wall - How to put a Grid Wall - DIY Tutorial
Navy Office/Lounge with Grid Wall - How to put a Grid Wall - DIY Grid Wall Tutorial
Navy Office/Lounge with Grid Wall - How to put a Grid Wall - DIY Tutorial

We only spent about $100 bucks on wood and were able to acheive this custom millwork look. I hope you guys give this a try with one of your walls.

Shop this Room

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DIY Grid Wall From Start to Finish

Thanks for visiting today,

xo Karen