How to make a farmhouse window with moulding / trim
By the way, I do not live in a farmhouse! I live in a typical suburban home that has every builder grade window standard in sight.
But there’s a secret to making this farmhouse window transformation so easy….
This farmhouse window with moulding / trim was created with standard lumber with no fancy miter cuts in sight!
And the outcome is simply outstanding, dramatically changing the entire room vibe into one of vintage farmhouse charm.
Here’s how to do it…
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How to make a farmhouse window with moulding / trim
I grew up in an old, rambling farmhouse with massive old vintage window mouldings. And I’ve missed them ever since.
After searching online, I came across plenty of farmhouse window trim ideas, but most revealed complicated tutorials requiring miter cuts and and expensive trim boards. There just had to be an easier way!
Then I came across a variation that showed how to achieve the look using standard lumber with straight cuts. BINGO!
Combining the concept with my own twist, here’s my version which is so simple, even a non-builder can create these beautiful farmhouse windows from any standard modern window!
standard solid pine lumber in sizes as show above (I suggest pre-primed)
nails for nail gun (I used 1 ¾”)
pry bar if you have to remove existing moulding
Note: While I used unprimed pine lumber in this tutorial, I do now suggest to use pre-primed wood. It’s less work and offers a more professional finish. I have since added this moulding treatment to a doorway with pre-primed and the ease and look is simply even more outstanding!
1. Remove existing exterior moulding with a pry bar, leaving all the inner window wood intact as shown above.
Removal is so easy! Gently ease the pry bar between the wood moulding and wall, then pry the moulding off. You can avoid damage to the walls by placing a board behind the pry bar.
2. Create a window sill (or window stool) / one 1×2 and one 1×6
What’s up with these new windows having no decent window sills? Well,I wanted one. So after removing all the outside window moulding, I left everything inside the wall intact and worked over top.
I determined how wide (left to right) to make the window sill by measuring the two side casings in place. The sill was made slightly longer.
Depth (front to back) was determined by how much I wanted the sill to stick out in front of each side casing.
Since I didn’t have a board that was deep enough, I doubled up.
This sounds complicated but it’s really not. It was just like building with blocks.
You can do this all in one piece if you can find a piece of wood deep enough to do the job.
The 1×2 is in the back and the 1 x 6 is in the front.
2. Once window sill is in place, measure and cut two side casings. / two 1 x 4s
The 1 x 4s were cut to fit from the top of the window opening to sitting on the window sill.
Adding that small 1 x 2 to the window sill pushed the sill out beyond the side casings.
Building the window header
3. Dry fit and nail together a window header / one 1×6 / three 1x2s / one 1×1 / one 1×4
Measure the width of the window plus the two side casings. Make the main header piece (1×6) that exact measurement.
Make the two touching boards to the header a little wider.
Make each final two upper boards slightly wider than the other as well.
(note: my top two boards are flush only because I ran out of wall space. They stack on the other side though)
After dry fitting all the cuts, the header was nailed together before installing to the wall.
Here is a side profile of the built header.
And just to prove how much of a true newbie I am to this, you can see one exposed nail plus one slightly warped board… proud moment here.
The 1×6 warped on me, but I didn’t notice until after the build. But not to worry, neither of these little glitches showed once the header was installed in my case.
4. Install the header by holding it into place, then nailing it to the wall.
I held the header up, then nailed the centre of it, then rotated it straight, and added more nails, hitting wherever there was a wall stud or main window frame wood when possible.
Sigh.. isn’t that just so lovely though?!
5. Add an apron underneath the window sill. / one 1×4
Cut a board the same width as your window plus side casings.
Attach the board underneath the window sill to create the window apron.
The farmhouse window result
And here is the farmhouse window result! Isn’t it amazing what a little lumber can do?!
6. Sand, prime, caulk, then paint the window moulding with semi gloss white paint.
This ended up being a fair amount of work, but the outcome was so worthwhile! And it really was so price efficient!
If you don’t mind adding more cost to the project, I suggest to use pre-primed wood. The result is super professional the work much more minimal.
The window mullions (white bars on glass) are pieces of white sign grade vinyl cut to size and stuck into place. This makes cleaning a breeze and opening/closing the window effortless. Any white tape or vinyl would likely do.
I LOVE my new farmhouse window trim and you can bet now I am working on the rest of the windows to emulate this! So far I’ve done one door way and it turned out fantastic! I will update this post once I have a blog post up on it.
What do you think of the farmhouse window with moulding? Think you’ll give it a go?!
Visit the rest of the farmhouse bathroom tour HERE
View the bathroom window in this Christmas home tour HERE