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How to Easily Install Farmhouse Window Trim!

What an easy way to update your house. Check out an easy DIY farmhouse window trim molding tutorial that is cheap and makes a big impact!

Hi Friends!!  I have been meaning to finish  my posts about my DIY home remodel and this is one of my favorite additions to my dining room.  It was inexpensive, easy, quick and makes the biggest impact.  An all around win win!!  

I’m talking about DIY farmhouse window trim molding.  I scoured Pinterest and found some great tutorials and got to work.  

farmhouse window trim

I ended being most inspired by Jillian’s over at I am a Homemaker.  With a few tools, you can do these in a few hours!

All the windows in the front of my house have an arch on top.  Now, I don’t mind the look of them but to find an arched window treatment is not cheap.

We get direct sun from 3pm on in the front which means a lot of heat coming in during the summer months.  We had the basic faux wood blinds over 3/4 of the window.  

Take a look at what my dining room windows looked like before~

DIY farmhouse window trim molding tutorial

Not horrible, right?  But I really wanted window treatments to cover the entire window so I decided to cover up the arch and make it look like a rectangular window.  

How do you do that, you might ask??  Read on, my friends, and find out how easy it is to change the whole look into this~

DIY farmhouse window trim molding tutorial

Supplies Needed for Farmhouse Window Trim

So I started out visiting my local Lowe’s home improvement store and picked up some cheap pine wood.

I used:

1 x 4 s for sides, apron, and top

1 x 6 for windowsill

1 x 2 on top – sandwich the 1×4

1 x 3 on very top

Then all you need is one of my favorite tools, a Ryobi nail gun, and also a miter saw, a jig saw, and some caulking.  

If you don’t have saws, you can have your home improvement store cut them to the lengths you want.  The lengths will depend on your window.

First thing you have to do is take off the existing windowsill.  I was a little nervous about this since I have never done it and didn’t know how hard it would be.  But with a crowbar it came off pretty easily!

DIY farmhouse window trim molding tutorial

I put some more caulking on to seal it better.  You can use the foam caulking or weather resistant caulking.  

Then to make it super easy, I laid the old windowsill on top of a 1×6 piece of wood and traced it.  I wanted the sides to stick out farther than my side trim so I added an extra 3 inches to each side.

DIY farmhouse window trim molding tutorial
DIY farmhouse window trim molding tutorial

Then I traced where the corner was and continued the line to make a rectangle.

DIY farmhouse window trim molding tutorial

Then just grab a jigsaw and cut out the piece on each side.

DIY farmhouse window trim molding tutorial

Viola!  That’s it for the windowsill!  That’s the hardest part of the whole project!  Stick it on the window and use a nail gun to nail it on good.

DIY farmhouse window trim molding tutorial

Then just measure up the wall at how far you want the farmhouse window trim to go up on the side, cut a 1×4 so you have two equal pieces and nail those up on the sides.

Ryobi nail gun

The 1×4 for the apron and also the one at the very top should be the same length as your window plus the side trims so just measure across and cut 2 equal 1x4s.  Nail one under the windowsill for the apron.

Cutting the Window Trim Top

Then all you need are the rest of the cuts for the top.  (You’ll have one left from the step above.)

Cut two equal lengths of a 1×2 the same length as your windowsill piece and one 1×3 about 1.5-2 inches longer than the 1x2s so it sticks over each side.  

I put the whole top frame together on my counter and then nailed it on the wall on the sides of the 1×4.  Sorry, for some reason I didn’t get pictures of this part, but check out I am a Homemaker’s blog for more instruction!

After everything is nailed down, fill nail holes and paint the whole frame.  I used White Dove color by Benjamin Moore.

After everything is dry, apply caulking all away around and you’re done!  

I bought new roman shades and hung them up high to make it look like a longer window.  I absolutely love the outcome and I couldn’t believe how easy and cheap it was to do!

DIY farmhouse window trim molding tutorial Benjamin Moore White Dove

The farmhouse window trim brightens up my new dining room and goes so well with my DIY farmhouse dining room table (click here for tutorial!) and the mudroom wall on the opposite side.

DIY farmhouse window trim molding tutorial Benjamin Moore White Dove

If you’d like to check out how I turned my family room into a farmhouse look on a budget click here!

farmhouse window trim

Thanks so much for stopping by!  If you’d like to save this tutorial for later, you can Pin it now if you’d like!  Have a great day!

DIY farmhouse window trim molding tutorial Benjamin Moore White Dove
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