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barley 01-04-2013 02:56 PM

Door Swing and R.O. Question
1 Attachment(s)
I am replacing an old pre-hung interior door with a new one. I was thinking it was a 36" door, when I measured the r.o. it was 35 3/4, so I would need a 34" pre-hung door, is this right ? That doesn't seem to be a common size carried in the stores . . .

Second question, is the picture attached a right inswing door ?

joecaption 01-04-2013 03:02 PM

You measure the door not the RO.
Stand in the room it's servinig, reach out to turn the knob, which hand are you using, that's the swing.
Residential doors swing into the room, commercial doors open out.

barley 01-04-2013 03:05 PM

The door is for a closet, so I need to be able to pull the door towards me as I am standing in front of it, that is where I am getting confused.

BigJim 01-04-2013 03:19 PM

Stand in the doorway with your back to the hinge, if the door swings to the right it is a right hung door, if it swings to the left it is a left.

joecaption 01-04-2013 03:46 PM

The drawing you posted looks like an out swing not an in swing.

barley 01-04-2013 03:50 PM

See, this is where I have so much confusion, maybe I am just over complicating it in my head. Is the picture a right inswing, or left outswing. . . or are they the same thing ?

kwikfishron 01-04-2013 03:53 PM

199 Attachment(s)
The way Jim described it (back to the hinges) is how I’ve always known it.

The only time in-swing or out-swing come into play (when ordering) is if there’s a threshold (exterior door).

What you have is simply a "right hand door"

BigJim 01-04-2013 03:56 PM

From your drawing it looks like an outswing right hung, but it makes no difference if it swings in or out, that door is still a right hung door.

barley 01-04-2013 03:56 PM

Okay, that makes it much more clear. So for this picture, I would get a 34" left swing door

barley 01-04-2013 03:58 PM

I meant to type Right in the last post, not left.

kwikfishron 01-04-2013 04:13 PM

199 Attachment(s)
Whether it’s right “hand”, “hung” or “swing” it’s all the same, just a difference in regional terminology.

woodworkbykirk 01-04-2013 06:26 PM

ok.. everyones noticing the swing, im the only one that picked up on the fact that the rough opening is too small for a 34" door prehung. you need a minimum of 36" for a 34" to go in it. . always make the r.o a minimum of 2" larger than the size of the door itself. sometimes the r.o has to be 2 1/2" larger depending on how plumb the jack studs are and how thick the jamb material is

kwikfishron 01-04-2013 06:35 PM

199 Attachment(s)
Oh ya...that too.

OP said that he/she had a 35 3/4" RO which should be just fine "if" the framing is plumb.

funfool 01-04-2013 07:12 PM

You need to measure the opening not the door.
A standard 36" door, A new blank will measure 35 3/4" is typical.
The actual opening with the existing door removed. should be 39" or 3" bigger for the door jambs to be installed properly.
But yeah, a actual 36" door measures 35 3/4", the hole it goes into will be different.

woodworkbykirk 01-04-2013 07:26 PM

a 36" door is 36" .. even with the lean of the door if it has the bevel put on it your not going to lose that much width

if its a 36" bifold then its 35 1/4

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