Trim Out Your Window in 6 Steps Trim Out Your Window in 6 Steps

What You'll Need
Measuring Tape
Straightedge
Square
Jigsaw
Glue
Miter Saw
Pneumatic Nailer
18 Gauge Nails
Wood Putty
Whenever you decide to trim window, you will find that doing the task yourself is something that will allow you to be able to save a lot of money. You will also know that the job got done well. Trimming a window is something that can be done fairly easily as long as you have the right tools and know how on the subject. Remember, trimming out a window is something that you will have to put some work into to make sure that it is done correctly. However, it is well worth it in the end.
Materials Needed:
Measuring Tape
Straightedge
Square
Jigsaw 
Glue
Miter Saw
Pneumatic Nailer
18 Gauge Nails
Wood Putty
Step 1 – Jambs
The jambs will have to be flush with your wall. A straightedge will need to be held across the window to check. Plane them down to your wall if they stick out. A slight bevel can be planed into your wall on the edge of the jamb for a tight fit. 
Step 2 – Side Casing
A side casing needs to be put against the wall. You can align up against your reveal line that is on the side jamb. Make sure that you mark your wall on the outside edge of the casing. Do this for the other jamb. Measure between the marks and make sure to add 2 inches. Stool should be pressed face down onto the sill with the back edge up against the sill trim. 
Step 3 – Stool
The stool’s inside edge needs to be marked an inch from each of the ends. Put it along the opening. A square needs to be placed at where the stool and the jamb’s edges meet. Align your jamb lines onto the inside edges and put the compass into the distance. Hold the point of the compass up against your wall. 
Step 4 – Notch
Using a jigsaw, cut a notch into each end of the actual stool, make sure that you follow the scribe lines as you do this. Apply glue to your sill. Also apply glue to the casing where the side jamb is overlapped by it. Make sure to wipe up any excess glue. Do this on both sides. 
Step 5 – Casing
The length of the casing should be held across the top of your window. From there, mark where the inside edge of the casing is met. Use a miter saw to make crosscuts. Your head casing then needs to be glued onto the head jamb. You will need to be sure that the bottom edge is lined up with your reveal line. 
Step 6 – Finish
Nails that are 18 gauge need to be driven into the corners. Mark your apron stock where each side of the casing meets it. Glue then needs to be applied along the edge of the top of the apron. Make sure that it is aligned with the ends. Fill any of the holes that are left with wood putty and let it set overnight to dry. 

Whenever you decide to trim a window, you will find that doing the task yourself is something that will allow you to save a lot of money. You will also know that the job got done well. Trimming a window is something that can be done fairly easily as long as you have the right tools and know how on the subject. Remember, trimming out a window is something that you will have to put some work into to make sure that it is done correctly.

Step 1 – Jambs

The jambs will have to be flush with your wall. A straightedge will need to be held across the window to check. Plane them down to your wall if they stick out. A slight bevel can be planed into your wall on the edge of the jamb for a tight fit. 

Step 2 – Side Casing

A side casing needs to be put against the wall. You can align up against your reveal line that is on the side jamb. Make sure that you mark your wall on the outside edge of the casing. Do this for the other jamb. Measure between the marks and make sure to add 2 inches. Stool should be pressed face down onto the sill with the back edge up against the sill trim. 

Step 3 – Stool

The stool’s inside edge needs to be marked an inch from each of the ends. Put it along the opening. A square needs to be placed at where the stool and the jamb’s edges meet. Align your jamb lines onto the inside edges and put the compass into the distance. Hold the point of the compass up against your wall. 

Step 4 – Notch

Using a jigsaw, cut a notch into each end of the actual stool, make sure that you follow the scribe lines as you do this. Apply glue to your sill. Also apply glue to the casing where the side jamb is overlapped by it. Make sure to wipe up any excess glue. Do this on both sides. 

Step 5 – Casing

The length of the casing should be held across the top of your window. From there, mark where the inside edge of the casing is met. Use a miter saw to make crosscuts. Your head casing then needs to be glued onto the head jamb. You will need to be sure that the bottom edge is lined up with your reveal line. 

Step 6 – Finish

Nails that are 18 gauge need to be driven into the corners. Mark your apron stock (the piece of the trim that will sit directly under the sill) where each side of the casing meets it. Glue then needs to be applied along the edge of the top of the apron. Make sure that it is aligned with the ends. Fill any of the holes that are left with wood putty and let it set overnight to dry. 

 

 

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