Greenman, a little help?

[olds]

What is the opening measurement between stops on a prehung 30" door?
What size should the rough opening be for a 30" prehung door?
Thanks.

 

[alkemyst]

What is the opening measurement between stops on a prehung 30" door?
What size should the rough opening be for a 30" prehung door?
Thanks.

A PM esp if he has email alerts on would probably help you.

It really depends on the door, but in general you are looking at adding 2" to width and 2.5" to height (a standard door is 80" tall).

Your door in trade talk is a 2/6 (2.5' wide) and it calls for a 2/8 rough opening.

If your door isn't 30"x80" then you need to follow the instructions with the door probably.

 

[BoomerD]

What is the opening measurement between stops on a prehung 30" door?
What size should the rough opening be for a 30" prehung door?
Thanks.

Go visit him on "the site that shall not be named" if he doesn't get back to you here. I'll shoot him a PM there and let him know you need his help.

 

[Greenman]

It vary's a little from manufacturer to manufacture, but it's generally 30" exactly from jamb to jamb. Between the stops would be 5/16 x 2 less than that, so 29 3/8" stop to stop.

 

[alkemyst]

It vary's a little from manufacturer to manufacture, but it's generally 30" exactly from jamb to jamb. Between the stops would be 5/16 x 2 less than that, so 29 3/8" stop to stop.

Rough cut is 2" extra (1" each side) right and 82" total height (assuming standard 80" door)?

 

[olds]

It vary's a little from manufacturer to manufacture, but it's generally 30" exactly from jamb to jamb. Between the stops would be 5/16 x 2 less than that, so 29 3/8" stop to stop.

So add 1.75 for rough opening?
Thank you.

 

[alkemyst]

So add 1.75 for rough opening?
Thank you.

How'd you come up with 1.75", lol

 

[iGas]

Interior Door Rough Opening Sizes.

Getting the rough opening size right the first time, will save you from frustration, when installing your doors. Framing rough opening sizes are really quite simple. Just add 2" to the width of the actual door size. You should add 2-1/2" to the height of the actual door. This will give you room to space the door frame off the sub-floor.

Good luck!

 

[momeNt]

lmgtfy

http://www.homedepot.com/catalog/pdfImages/80/80ffca51-50ab-495d-90ff-f73bf4d7ab07.pdf

 

[Greenman]

So add 1.75 for rough opening?
Thank you.

Always add 2" for your rough opening, you need to be able to shim them for a perfect fit.

 

[Greenman]

Rough cut is 2" extra (1" each side) right and 82" total height (assuming standard 80" door)?

I know, I've hung more doors than most people have opened.

It's not "rough cut" it's "rough opening", generally stated as R O. For interior doors, header height generally isn't mentioned unless it's other than 82 1/4".

 

[Greenman]

lmgtfy

http://www.homedepot.com/catalog/pdfImages/80/80ffca51-50ab-495d-90ff-f73bf4d7ab07.pdf

I've never added 2 1/2" for my RO, you end up with a huge stack of shims behind the jambs. 2" is just right.

 

[alkemyst]

I know, I've hung more doors than most people have opened.

It's not "rough cut" it's "rough opening", generally stated as R O. For interior doors, header height generally isn't mentioned unless it's other than 82 1/4".

I am not a pro, I don't know the lingo...I just know how to hang a door.

 

[momeNt]

I've never added 2 1/2" for my RO, you end up with a huge stack of shims behind the jambs. 2" is just right.

Before you start check to make sure that the rough opening is 2" wider
than the door width & 2" higher than the door height. This will allow
you to shim and square the door frame easily. Door casing will cover
the gap between the rough opening & the door frame

In the chart it does show the allowances as 2-1/2" larger opening, yet in the directions it is the above quote. Not sure why there is the discrepancy.

 

[alkemyst]

In the chart it does show the allowances as 2-1/2" larger opening, yet in the directions it is the above quote. Not sure why there is the discrepancy.

That PDF is confusing what should be added to the height and what should be added to the width.

/because Home Depot.

 

[momeNt]

Could just be as simple as BETWEEN 2 and 2-1/2". Construction studs aren't flat and straight, an opening that varies between 2 and 2-1/2" is preferable to one that varies between 1-1/2" and 2, if you had to choose between one or the other.

Either way you can plane or shim the RO to get a fit if you don't get the proper RO.

 

[alkemyst]

Could just be as simple as BETWEEN 2 and 2-1/2". Construction studs aren't flat and straight, an opening that varies between 2 and 2-1/2" is preferable to one that varies between 1-1/2" and 2, if you had to choose between one or the other.

Either way you can plane or shim the RO to get a fit if you don't get the proper RO.

An opening for a door should be made correctly and straight, this is not just some average wall stud.

Too much of a gap requires more than 'shimming' and is not ideal.

Technically you can make anything 'work' though.