Flat Panel Wall DIY

by Joy
5 Materials
3 Days

Week 4 is here and it’s all about the flat panel wall DIY we came up with. Traditional Grid style panel walls are a perfect combo with the faux beams.

Hi friends, Week 4 update of the One Room Challenge is here. I am a little late in sharing my update. We have a few things happening behind the scenes in our personal lives but I am happy to share where we are as of today. Let’s talk about this flat panel wall DIY.

Catch Up Here:

Week 1 // Week 2 // Week 3

For my friends who haven’t heard of the One Room Challenge, it is a bi-annual event hosted by Linda of Calling It Home. This event has grown into quite a sensation over the years. It’s exciting to have Better Homes and Gardens as the media sponsor and this season, High Point Market is involved!

20 featured designers are chosen for each round to share their visions and hard work on Wednesdays. Then Thursdays are open to over 150 guest participants to give their room updates. Every week is filled with highs and lows, design changes, and the unexpected. The One Room Challenge offers incredible encouragement and camaraderie amongst the participants and those who are following along as the “before” photos become a thing of the past and new beautiful spaces emerge.

My timeline is a little off and I really wanted to share with you in detail the gorgeous wall sconces that are going up. That conversation will be up on Thursdays for week 5.

After painting all the walls in deep beautiful indigo, I changed my mind on the wall treatment. Originally, I had planned to do wall panels similar to the office. These would have been great but with the addition of faux beams – a flat panel grid-style wall treatment felt right.

Flat Panel Wall DIY

Why thin plywood?

I didn’t want to rip out the current baseboards. So, I went with something that could be easily applied to the wall and give me the look I was wanting without having to deal with baseboards and carpet.


  • 1/4 inch paintable plywood.
  • Sandpaper
  • The paint of your choice
  • Table Saw (or talk with your local hardware/lumber store about cutting the strips for you)
  • Paintable Caulk
  • Brad Nailer

Step 1: Decide how wide to make your strips

I went with 3-inch strips for my panel wall. You can cut the strips at home with a table saw -this is a two-person job, especially if you are going to use thin plywood. The local hardware store made quick work of my strips on their ginormous saw. It was still a two-person job but it went so quickly!

Step 2: Sand the sides smoothly

This step will be a little time-consuming – knock off all the little burrs and splinters.

Step 3: Paint

This step is optional. You can paint before or after the strips are installed on your wall. It’s all preference.

Step 4: Install the strips

Start with outlining the wall with your strips, creating a large frame.

Measure the distance inside the frame. Determine how large you want the grid pattern to be. I wanted my grid to be three rows horizontally. So, after measuring – I was able to get 5 vertical strips across and my idea of three rows horizontally looks pleasing to the eye

Step 5: Putty

Lots of nail holes to fill!

Step 6: Touch – Up paint

Now that all the holes are filled, time to paint!

That's it! Such a quick and easy way to make an impact in a room. Here is the final space.

Follow me on Instagram @theaspiringhome_ for more inspiration!

Til Later friends,

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Frequently asked questions
Have a question about this project?
  1 question
  • Shawna Farmer Shawna Farmer on Apr 08, 2021

    Love it, except that's a lot of pictures , is there a reason why you hung so many frames on the wall, why didn't you keep it kinda bare so the eye can focus on the accents ? It's lovely , not being critical , I am just curious , is that why you did the number of grids you done, and if you was to keep the wall more bare would you add more or less accents or grids, thxz! Stay blessed 😇

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2 of 15 comments
  • Lora Anders Lora Anders on Apr 06, 2023

    Looks great !

  • Maxine Maxine on Apr 06, 2023

    I too feel the pictures take away from the beautiful grid pattern. I like all the

    pictures and the paint color. Feel the grid pattern was not necessary. Where

    it works best is to make a plain wall a feature wall often with a small piece

    of furniture placed on the wall. Something dramatic can be placed on the

    furniture. You like it and it is OK. I recently changed my LR furniture

    placement and I asked two friends for their opinion. I then made a small

    adjustment--love the new look. One was an artist.