Installing a roll-up door with limited depth

[NorthJersey]

I was originally planning to install carriage house doors on my garage to avoid an internal chimney chase that would obstruct a sectional door’s operation.

I’m reconsidering the swinging doors now that I have found a good deal on some used wooden sectional doors. I’m not sure how to make them work with the limited depth on the bay with the chimney. I have at least 8’9-1/2” ceiling height, 7’3-1/4” from the interior finished wall surface (on the wall with the garage door opening) to the vertical obstruction. I’m installing an 8’ door.

With the appropriate tracks and other innovations, how far would I be able to open that door, i.e., how much of 8’ opening height will I lose?

 

[racecougar]

One of the garage door guys, like jstroede, probably have a model that they can plug those dims into and get a result from. I threw a rough model together real quick in CAD this morning that points to a open height of ~6' 8-1/2" using a low headroom track arrangement mounted 3" below the ceiling.

BTW, you're talking about a sectional overhead door, not a roll-up.

 

[NorthJersey]

Thanks for cranking those numbers for me. I’m trying to get at least seven feet, but we might have to live with a low opening on one side unless I find a good deal on a pair of used swinging doors. Thanks for correcting my terminology. I wish I were working with a roll-up!