Measuring for replacement bi-fold doors?

Hi everyone! This is my first post here! I hope someone can help me.
We have a few bi-fold doors that need to be replaced. When looking at options, most of the items I see at Lowe's measure roughly ##" x 80"
My concern though is that my rough opening is over 80" high... About 81".
The track for the existing door though is at 80" and the door itself matches the memeasurements of the actual door we are considering. Am I measuring the door opening properly?
I'm measuring from the carpet to the top of the door opening.
If it's possible to attach photos I will, but I don't see how.

 

For most bi-fold door hardware, the opening from the wooden floor (not carpet) to the surface the track at the top mounts to, should be 2" taller than the door height. This allows room for the top track and the bottom hinge. If the carpeting runs into the closet, the bottom hinge mount is often screwed down to the floor right through the carpet.

The hinge pins are adjustable, so opening a little taller and a little shorter than this can be accommodated without altering the doors.

I'm confident your doors are standard height and standard height replacements will fit your existing openings.

Good luck and welcome to the forums!

[edit:] Here's a picture that shows standard dimensions: http://www.johnsonhardware.com/image...GHEIGHT580.jpg

 

Shop ReliaBilt (Primed) Hollow Core 6-Panel Bi-Fold Closet Interior Door (Common: 36-in x 80-in; Actual: 35.5-in x 79-in) at Lowes.com shows a rough height of 80"but the actual height is 79". Is this right or should it be 78"?

 

That door will work fine in your opening (assuming the width is correct).

 

Thank you so much!
I purchased it and it works fine!
I was worried because the previous door had the lower hinge mounted to a small piece of wood about 3/4" thick.
I had to actually remove that wood with the new door for it to fit.
I was worried because somehow the physical door itself measured the same as the dimensions on the Lowe's website so I wasn't sure if I should have measured from the floor, carpet, or the top of that wood!
Thank you so much for your help! I think the previous owners didn't know how to install them and had the wrong door so they had to use that block of wood... Or something...
Thanks again!

 

Good to hear Thanks for letting us know.