New replacement tub is 32" wide vs. old 31" wide tub

[bob ruble]

Hi Shannon, My new replacement (CI) tub is 32" wide vs. my old 31" wide tub, so how can I add about 1 1/2" to my alcove space to accept the new wider tub in my bathroom remodeling project. The bathroom layout is a very standard 1950's design with a tub alcove (60" x 31"), with the tub 31" "wet wall" also being shared by a small 31" deep x 32" wide towel closet, which I do not plan to change; closet has a standard 24" interior framed door running 90 degrees off the 31" wet wall.
My thought was to just thicken up the closet door wall with a layer of flat 2 x 4's and new drywall on top of that to give me the extra 1 1/2" I need for the wider tub alcove.
BUT? How do I handle the door in this wall I am thickening? It is in the center of the 32" wall space with standard door frame/trim around it. Can I somehow remove the door trim and just extend the existing frame out the additional 1 1/2" thickness and reapply the door trim to the frame extenders on the new drywall built out surface?
Any help or suggestions will be greatly appreciated.

[Shannon]

You could do that and extend the door frames but then that door will only open to a maximum 90 degree at best because it will hit the new jambs. I would remove the door trim and door jambs and then re install them out at the new position (1-1/2" out)and add to the jambs inside the closet making them wider there instead . This way the door will open without hitting the jambs..

[bob ruble]

Thanks for your quick reply Shannon. Confirms what I was thinking pretty much.
So not being a trim carpenter myself, could you point me to a video of yours showing the "Jamb extension" process as I could not find it.

[Shannon]

I don’t have any video at this time for that.
Basically purchase some wood to match the jambs. Cut it to width and length you need. Then assemble a miniature frame that will sit up against the existing one and shim be tween it and the RO just like installing the frame. Nail it in place and run a bead of caulk between the old and new if it’s paint grade to pretty it up.

[Shannon]

I will generally cut the extension so that it leaves a slight reveal agains the original. Maybe a 1/8” or so.