Fast & Easy Jamb Extension For Windows | Carpentry Made Simple

Simple and Easy How To on jamb extensions for windows and doors. No more confusion on how to execute this convenient process. Double stepping the reveals gives the best finish product on stained or paint jamb extensions. Utilizing the screws prevent movement between the jamb and window frame without having the frustration of shims potentially binding while installing unit. An easy solution for a simple problem if ever encountered while trimming a house.
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[@slatsgrobneck7515]

Nice system!!

[@texascarpenter]

Thank you!

[@user-eo7lo3ze4v]

Very helpful, simple and exactly what I i was looking for.

[@djpcinema]

nice

[@jeffalden6769]

You just made my morning alot less stressful. I've got yrs of construction background but hate window extensions. But this will make todays project alot nicer

[@texascarpenter]

Glad to hear it man! Every house we go into we always try to find new ways to produce high quality with efficiency..Hope it works well for you 👍🏼

[@joelreynolds]

Great video. Step by step. Close up shots when need. Uses simple and useful techniques (leverage) and not to long. I am a “belt and suspenders” guy. So I will do the exact same just using wood glue and Kreig jig for connecting the corners.

[@tomf9292]

Very helpful thx!

[@chofbrighton7014]

Appreciate this video.

[@shannond2707]

Very helpful, thanks for showing how you do this :) Shims weren't working with the windows I'm working on, so this is helpful.

[@Nev.14]

This video is incredibly helpful, thank you

[@texascarpenter]

Appreciate it!

[@oxfordman]

Outstanding!!!!!

[@texascarpenter]

Appreciate it 🤙🏻

[@brasha78]

Awesome video. Thank you for the short that brought me to this. Now I got your channel. Boom!

[@texascarpenter]

Right on and thank you 🤙🏻

[@rikityrik]

On an small 9/16 extension on an exterior door (painted) would you give a tiny offset or no transition to the jamb? Thing is it’s a retrofit, I’ve already cut the siding back the 3.75” to allow a 1/4” offset for the exterior trim and got the flashing in can’t make up my mind if I want to take another 1/8” off the siding to allow a transition for the extension.

[@YAHYA_SUMIGAR]

Mantap kawan..👍👍👍 Papua Indonesia hadir...🙏

[@ruanpienaar5400]

If I may ask, why is there a small "shim" attached to the 1x4 piece that holds the extension in place? Would the 1x4 directly into the wall and against the jamb not make the jamb sit flush with the drywall?

[@drwagner14]

It's for leverage. Notice that the 1x4 is not flush with the wall at 3:22. This block is just pushing against the jamb extension really hard while it's being screwed in. You are right that we want the jamb extensions flush with the drywall when done.

[@weiwang9622]

Sorry I don't understand this, are the jamb extensions cut to the proper size (especially the direction from the person installing the window to the window) before installation? Otherwise, forcing the gap between the extension and the window to be closed will make the extension further into the drywall, how do you install the trim afterward then? Bend one edge of the trim (the edge close to the extension) closer to the extension too?

[@crs1012]

I’ve never done a jam extension. Are you screwing the extension into the framing surrounding the window?

[@texascarpenter]

No it is being screwed into the wood surround of the window itself. If you have vinyl windows it has to fastened to the trimmer stud..

[@59ar]

To bury the head of the trim screw, did you use a larger bit than the 5/32" bit for the pre drill?

[@texascarpenter]

No the 5/32” is perfect for shank of the trim head however you want the head of the screw to be able to grab some meat in the wood for holding power without splitting 👍🏼

[@sarahenry1031]

What kind of wood and thickness are you using for the jam extension?

[@texascarpenter]

Poplar Wood and it’s 3/4” thickness!

[@travisandtracyjacobs6198]

What are you screwing into on the edge of the jamb

[@texascarpenter]

The 2 1/2” GRK screws are fastened while building the extension for additional strength and holding power

[@aeae8840]

Can that be done on vinyl windows?

[@texascarpenter]

No. The jamb extensions on vinyl windows need to be nailer to the trimmer stud not the window

[@zell863]

How much I know you are not allowed to screw yours screws in new plastic windows? Edit and when is jamb extension change along way I rip it down to size with free hand at table saw.

[@jesusisaliberal548]

I don’t understand what your block and wedge are doing for you.

[@neilporcelli1238]

Driving the jamb into the window so it keeps the reveal and pressure so he can screw it in without holding it the whole time