Add Molding to Flat Panel Interior Doors

8 Materials
2 Days

The boring, flat panel interior doors were really dating our home. However, I didn't want to spend the money to replace them all. So, we decided to use plywood to give them the effect of molding.

Cut 1/4" plywood into strips. You'll have to do math to determine the size that you want the boxes to be on each door. Check your math 3 times because we sure did mess it up! Draw a diagram for best results, and then tape the design onto the door to be sure. There's more details on that process in my blog post.

Sand when they are cut to get rid of jagged edges.

Use a nail gun to attach strips to door. Use a level and tape measurer to make sure they look straight and neat.

Use caulk or wood filler to fill all gaps and sand smooth.

Paint. We took our doors outside and sprayed them since we did 8. If I was just doing 1 or 2 I would use a small foam roller and paint them in place.

Re hang and enjoy! We also replaced all our mis-matched knobs with levers.

This was such an upgrade for our home and was done at a fraction of the cost of replacing the doors.

Suggested materials:

  • 1/4" plywood
  • Nail gun + nails
  • Sander
See all materials

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Morgan McBride

Want more details about this and other DIY projects? Check out my blog post!


Have a question about this project?

1 question
  • Theresa Holz
    on Nov 28, 2019

    Our doors are hallow-core. Will the nails hold or, over time, will the boards loosen? Would wood glue, or another adhesive work also?

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3 of 14 comments
  • Brittney Hash
    on Dec 5, 2019

    Good idea. I like it even better when the same thing is done with trim, like ¼" trim molding. Then u can just glue it on in the shape of squares, esp for hollow doors

  • Amy Dady Poole
    on Dec 5, 2019

    Our interior doors are construction grade pre-stained. How would we go about painting those after the design overlay is attached? And would the liquid nails, or something similar, hold well enough?

    • Lanna Foley Webb
      7 days ago

      Would chalk paint work? Idk. Maybe someone with more experience using it would know. You could also stain it all with gel stain - it’s the chalk paint of the stain world. Almost no prep.

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