How to install a door jamb extension

How to install a door jamb extension. In this video I have a standard 4 1/2" door that's going into a 2x6 wall. I'll explain how to install a jamb extension so the door will fit properly.

[@davidwilliams8584]

I am planning to add a door in my home and haven't done a project like this in a while. I needed a refresher, so finding your video was greatly appreciated. The detail my brain needed was there and you made the steps clear without the extra chit-chat.

[@JayZoop]

Awesome man! Exactly what I need for an exterior door project! Somebody bought an exterior door that wasn’t wide enough.

[@kevinemling5990]

Great explanation. I am putting in a new door for a friend on an 80 year old building that the walls are 8" thick. So I ordered a 6" jamb and extensions, but had no idea on how it went together. Again great job.

[@h2s142]

Precase the hinge side. Set your door verifying plumb on hinges and proper reveal around door/jamb nail it off. Then set jamb extensions on outside and mark and cut the mould the outside.

[@brandonrecknagel998]

Well made video, excellent job! Thank you! Probably saved me hours of headache and frustration knowing what I'm going to have to do ahead of time.

[@peep39]

I'm a big fan of all GRK screws. good tip

[@doncc6080]

Thanks just the info and procedure I need to do mine. I also bought a Mastercraft door glad to know they make extensions.

[@martinhatfield7546]

Great video and construction tips. Thanks.

[@jesusbocanegra7392]

Great video, Thanks.

[@cattj]

Very helpful thanks!

[@gharrett2092]

This saved me for my install today Thank you.

[@Rustytales]

Thank you so much!

[@Drtbykr1]

Thanks for the video

[@zephyr1408]

The house I was doing had 2x6 framing & 6” 9/16 jams. I took the same jam as you used header and strike side. Took butt side cut it to give me 2” extensions and used dominos to mate the 2” extension ! Wala!! Done! I am a finish carpenter contractor so I am caution bout those trim screws they snap like twigs under pressure ! However I am sure your good! Pl 400 expands so I stay away from that!

[@doncc6080]

Gluing compensates for any weakness in fasteners

[@billfeldman3234]

NICE GOOD JOB!!!

[@garyduensing3495]

Thanks.. so glad I found this video

[@marcusgunderson634]

Thanks!

[@miguelvalenzuela]

thank you!!!

[@shenoyglobal]

how do we go about installing stone door surround and jamb

[@Gargamale79]

Have a link to this kit?

[@mb9110]

If I have an exterior door already installed that needs an extension like this, it can be added while already installed? I need the extension so u can get a new storm door that won’t have a gap. I don’t want to replace the main door.

[@almacipriani3508]

Question for ya. Can you cut down the extension if you don’t need the width they are selling? I need 5 1/2” added. Thank you for a great video!!

[@HomeSource]

I think so. I’ve cut down custom widths for interior doors many times. Just need to make sure it’s somewhat close or your threshold may look a little funny. Good luck!

[@oddopops1327]

👍👍😊

[@travishanson2119]

Do you think that groove where the extension was added is so you can fill with putty or Bondo and sand flush to blend the two surfaces together before painting?

[@HomeSource]

No. They do that’s it here’s a clear definition between the two. Trying to fill and blend is a lot or work and in the end probably won’t look as good as a line your eye naturally goes to.

[@travishanson2119]

@@HomeSource thank you for the reply

[@ericczernizer2331]

With the door sill extension, any concern of water getting between the extension and original sill into the house?

[@JayZoop]

I'm sure the glue and the paint will seal it up well. Paint should always be touched up every few years to protect the wood.

[@seanlangton9197]

It happened to me I had to take it out and caulk it

[@jasonautry24]

Would it be possible to order this pre-hung door with the proper door jam width?

[@HomeSource]

You can definitely order in different widths, for sure 2x6 and 2x4, but not sure about other sizes.

[@cynthialinaweaver77]

I just found your video very interesting is it sold?

[@HomeSource]

Not yet. I have A LOT more work to do before it will be ready. I’ll continue to post updates. Thanks for watching.

[@ericczernizer2331]

Can you add a door jam extension to a door that’s already installed?

[@davidfreemanjr3794]

U can. Nail extensions to framing using shims where nails or screws are used. Caulk edges and trim.

[@jxw1775]

where can i buy the jamb extension kit?

[@HomeSource]

I got the kit from the same store I got the door. In my case it was Menards. The extension kit needs to come from the same manufacturer as the door.

[@43wagonwheel]

Couldn't you do the extension on the other side? This way you dont have to remove the brick mould?

[@HomeSource]

Unfortunately not because the door wouldn’t be able to open correctly. The hinges need to be even with the interior wall so it can open into the room.

[@43wagonwheel]

@@HomeSource Bummer. All the doors I can find are standard 4-9/16 and 6-9/16. My door frame width is 5-1/2. House built in 1923. What's my options? Thanks for your feedback.

[@berkinheimer]

you planning on breaking that blue wall down? not going to be "perfect" drywall with that textured wall...

[@HomeSource]

Nope that one stays. We’ll retexture everything and when done you won’t be able to tell new from old. Very close to that stage now!

[@duke81625]

They are called rabbits not datos. Why are you putting the extensions on the exterior rather than the interior( no threshold extension needed)

[@duke81625]

My bad! It's an in-swing exterior door. Can't put ehe jamb extensions on interior due to hinge interference.

[@duke81625]

Also, carbide saw blades cut Al just fine.

[@ShaneHolly]

I would have loved to see the jamb mesh up, to the original, up close .