I have had a problem with installing a prehung door...
First I measured the rauf opening to be height 80 1/2"
width 33 1/2"
Then I measured a prehung door at home depot that was exactly 80 1/2"
But it said on it rauf opening for height is for 82 1/2" so where is this extra
2" comeing from mathematically if you measure the prehung door and the opening for it and they are both the same then why is it not fitting by a hair? Why do you need the extra 2" for the height on specifications of the prehung door?
Second I measure all the house doors in my place (just the door) and all of them measure 80" height wise ... when I went to home depot to just by a replacement door I noticed the height is always 80" standard...
But I measured my prehung doors size (just the door ) and it was 79" so
I guess I will have to special order every time I need to replace just the door for it??? All the prehung door doors are about 79" but the standard doors are 80"
WTF so everytime you install a prehung door and want to change just the door not the frame out them you would have to special order a 79" door....
Seems BS to me or you would have to shave an inch off ....???
Either way all these doors give that the door itself is 80" but when I measure it I get 79"... wondering if these measurements on the door that they say 80" because their measuring to where it hits the jamb door and spaces between door and jamb...
Either way I am totally confused and mathematically it is wrong anyway you slice it?
Another question why do they call 2 by 4 wood , it is not 2" b 4ft or anything like that so I am lost with what freaking measuring system their using....????????????????????????????
Thanks for any help because most of what I am doing depend on precise measurements and if their not labeling things correctly then no matter what I measure I will be off................
First I measured the rauf opening to be height 80 1/2"
width 33 1/2"
Then I measured a prehung door at home depot that was exactly 80 1/2"
But it said on it rauf opening for height is for 82 1/2" so where is this extra
2" comeing from mathematically if you measure the prehung door and the opening for it and they are both the same then why is it not fitting by a hair? Why do you need the extra 2" for the height on specifications of the prehung door?
Second I measure all the house doors in my place (just the door) and all of them measure 80" height wise ... when I went to home depot to just by a replacement door I noticed the height is always 80" standard...
But I measured my prehung doors size (just the door ) and it was 79" so
I guess I will have to special order every time I need to replace just the door for it??? All the prehung door doors are about 79" but the standard doors are 80"
WTF so everytime you install a prehung door and want to change just the door not the frame out them you would have to special order a 79" door....
Seems BS to me or you would have to shave an inch off ....???
Either way all these doors give that the door itself is 80" but when I measure it I get 79"... wondering if these measurements on the door that they say 80" because their measuring to where it hits the jamb door and spaces between door and jamb...
Either way I am totally confused and mathematically it is wrong anyway you slice it?
Another question why do they call 2 by 4 wood , it is not 2" b 4ft or anything like that so I am lost with what freaking measuring system their using....????????????????????????????
Thanks for any help because most of what I am doing depend on precise measurements and if their not labeling things correctly then no matter what I measure I will be off................