Mounting a NEMA 1 Screw Cover Enclosure between ceiling joists

[mikekirby]

I'd like to mount a 24" x 18" x 6" NEMA 1 Screw Cover Enclosure between two ceiling joists, with the opening facing down, into the garage. The enclosure would be fastened to the ceiling joists through its' sides with blunt screws.
I am installing a new 200 amp residential panel in a different location in said garage. The purpose of the enclosure is to be a junction box where the original Romex cables will splice to conductors from the new panel.
The cut sheet from the manufacturer of the enclosure states 'wall' mounted.
Has anyone done something like this?
Could it pass inspection?
Alternatives?
Thanks for your help.

 

[PaulMmn]

Will there be a drywall or other ceiling covering it up??

 

[mikekirby]

Good question. No. The screwed on cover will be flush mounted with the edges of the drywall around the enclosure.

 

[infinity]

Is this a fire rated garage ceiling?

 

[nizak]

Good question. No. The screwed on cover will be flush mounted with the edges of the drywall around the enclosure.

Good question. No. The screwed on cover will be flush mounted with the edges of the drywall around the enclosure.

So the cover will overlap the drywall or butt up to the edge of it?

 

[jaggedben]

Other than infinity's concern I see no issues.

 

[roger]

Good question. No. The screwed on cover will be flush mounted with the edges of the drywall around the enclosure.

Buy a flush mount box instead of a surface mount. The difference is the cover

 

[roger]

In the past I have had a local sheet metal shop make one if I couldn't find one quick enough

 

[jaggedben]

Buy a flush mount box instead of a surface mount. The difference is the cover

Eh, it's not necessary, just an aesthetic choice. Another option is to set the box (without cover) a bit proud (1/8"?) of the drywall, so you can mud cleanly up to the sides of the box. I mean, it's a garage.

 

[roger]

Eh, it's not necessary, just an aesthetic choice.

Which was my point.

 

[mikekirby]

To answer Infinity’s question about fire rating: I think the answer is No.The structure of the attached garage is made of wood joists and rafters with 5/8” finished drywall affixed to the joists. No dwelling above. The house was built in mid 1960’s.

 

[rc/retired]

To answer Infinity’s question about fire rating: I think the answer is No.The structure of the attached garage is made of wood joists and rafters with 5/8” finished drywall affixed to the joists. No dwelling above. The house was built in mid 1960’s.

Then there is no problem

Ron

 

[Electromatic]

Attached garages should be decently sealed to prevent CO and other fumes from entering the dwelling. I don't know the building codes on that subject, but it is something to consider.

 

[acrwc10]

block all four sides for the drywall and it will look fine when its done.

 

[rc/retired]

block all four sides for the drywall and it will look fine when its done.

No reason to. The OP said there is no dwelling above the box.

Ron