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Adding Trim to a Flat Door

On Saturday, my wonderful hubby took all the kids out for the day so I could have a free day to myself… do you think with all of that time I sat on the couch with bon-bon’s and a trashy romance novel? Oh no.. I finally decided to tackled a project that I had been dying to do for ages…adding trim to a flat door to create a faux panel door. For 8 year, I looked at this ugly door, not sure what to do with it… I finally decided a paneled door would be nice. Plus I had nightmares of this mirror falling off and reducing our income tax deductions by one.

A partially open wooden door with a full-length mirror reflects another closed door in a beige-colored room.

I first removed the mirror and filled the holes on the door with wood putty. I then measured and marked out where my panels would go.

A person uses a pencil and a level to draw a straight vertical line on a wooden surface.

Measuring the trim

To figure out how much trim I needed, I pre-measured my panels. My panels were 37 x 17 1/2 and 23 x 17 1/2 and it took about 3 hours to measure, cut the trim and glue.I then cut my molding. I would recommend if you only have a regular miter box like I do, go with pine molding. Oak is impossible to cut and I would be lying if I didn’t tell you after cutting these 8 pieces, my arms was tired and I was sweating… I am so out of shape.

Two rectangular shapes made of masking tape are placed on a wooden floor. Nearby are a table leg, a plastic container, and some loose cables.

After I measured and cut the pieces to the right size, I laid them out. I found the trick to cutting the right length is to make sure that I am measuring from longest part of my 45 degree angle.I laid them out on first the floor to make sure I had the right size pieces. Luckily,  I only mis-cut one piece. Using a molding that had a certain direction to it made it a little harder to make sure i had the right side. I actually had to back cut one side all of the time to make sure I had the right direction and angle.

A hand holds a red spirit level vertically against the edge of a light-colored wooden cabinet door.

Gluing the Trim on the Door

I then glued them to the door with construction adhesive. I wasn’t sure nails would really help with a hollow core door.

A hand applies caulk to the corner joint of decorative trim on a wall or ceiling.

I used a level to make sure they were on right as I put them on. After putting them on, I also put a wood embellishment at the top. And then I wood puttied any spot I had a huge gap like here (Let it dry and sand it smooth.). Once it was up, I let it dry for a day so the glue could cure.

A white door with a rectangular raised panel and a small brass nameplate in the center.

Painting the Door

And then I painted the door a bright white color. it looked so fresh and clean!I thought that would be kind of funny for a bathroom. I added a brass plaque that said “law offices” I bought at the antique store. I wish I had found one that said “library.”

A gold sign on a white door reads "LAW OFFICES" in capital letters.

The project including trim and paint cost under $30.00 if you have none of the supplies (Not including a miter box, but they aren’t that much). I already had the paint and wood filler so all I needed was the trim.

White door with a brass nameplate labeled "PRIVATE," partially visible next to another white door in a hallway.

I think I am going to age to door a little to make the molding pop a little. But it wasn’t as hard as I thought it would be. I would just recommend buying a little extra molding for mistakes. But I really love how the door turned out!

Jen sig

2 Comments

  1. Duh….to myself I’m saying duh, why didn’t I think of that before! I have one very ugly door right smack dab in the middle of our foyer. It’s the entry to the garage. Yes, it sounds strange and it’s probably very hard to picture. Anyways, enough about my door…Yours is beautiful! I adore all your wood embellishments also

    Wishing a blessed week

  2. Hello! I went digging on Pinterest for some ideas on updating my boring hollow-core doors, I was so pleased to find the answer on your blog! Love your site, and I can’t wait for your CMB 2.0 class (none of which has anything to do with my door issues:). I saw you posted this in 2008 – how has the hot glue held up?

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