Interior door slab question

Old 08-26-07, 11:40 AM
Thread Starter
Join Date: Aug 2007
Posts: 1
Upvotes: 0
Received 0 Upvotes on 0 Posts
Interior door slab question

I'm replacing some old interior doors with new 6 panel slabs. Problem is that the old doors are 1 3/4" and the slabs I picked up at Home Depot are 1 3/8". Is this normal? Are doors just thinner these days or did I get the wrong ones? They look fine, it's just the doors are not flush with the door frame from the inside of the room anymore and I either need to move the door stops in or cut the mortise for the jamb hinges in a little further to put the door right up against the existing stop. Advice?!
Old 08-26-07, 12:41 PM
XSleeper's Avatar
Group Moderator
Join Date: Dec 2004
Posts: 26,675
Received 1,813 Upvotes on 1,630 Posts
1 3/8" doors are fairly standard nowdays. If you want / need 1 3/4" doors they would be special order and they will cost you considerably more.

It's hard to say exactly what your best bet would be, but assuming that your hinges are not too wide, I think you would probably be ahead to just move the door stops out to meet the door.

Someone else recently had this same problem:
Old 08-26-07, 08:21 PM
Join Date: Dec 2000
Posts: 974
Upvotes: 0
Received 0 Upvotes on 0 Posts
XSleeper is on target, but maybe this will help

Choose whether you want inset doors or not. It's your choice.

Inset is the distance the door face is recessed in from the face of the jamb. In commercial work the typical range is 1/16” to 1/8” Normally, residential doors are not inset. The purpose of insetting a door is too hide small errors in the plane surfaces of the door face and jamb face.

How insetting is done: (Don't make this any more complex than it is!). Simple: The jamb mortise is stopped further back than the mortise is stopped on the door..

Ea: 1-3/8 door. The mortise on the door is stopped 1-1/8” from the front face. The normal hinge back-set is 1/4” (from the rear face). 1-1/8 + 1/4 = 1-3/8"

When the hinge jamb mortise is stopped an equal distance (1-1/8”) the door is flush with the jamb.

When the hinge jamb mortise is stopped deeper (1-3/16”) the door is inset 1/16”. IT MAKES ABSOLUTELY NO DIFFERNCE HOW WIDE THE HINGE LEAFS ARE. (Hinge width relates mainly to “clearance for the trim”)

The normal clearance between the door and stop is 1/16”.

So, if you don't want the inset: move the hinges on the jamb outward. Make the distance equal to the mortises on the door. Fill the remainder of the mortise on the jamb. Move the applied jamb stop to where it should be. After the doors are painted few people will know the difference. Otherwise, do what ever you choose.

Thread Tools
Search this Thread
Ask a Question
Question Title:
Your question will be posted in: