Options for running wires from panel to attic area

[Raisedonadeere]

Is it possible (legal) that I could surface mount panel in my detached garage new stick build and run two 2” conduits out top of panel through ceiling into attic. Service enters bottom of panel. I would run 5 or 6 nm cables through each 2” conduit. It is 3’ from top of panel to ceiling material. I need to avoid drilling so many holes in top plate as this area is a structural stress point in gable end between garage door and corner of building.

If not copacetic to run multiple cables to attic through conduit I could frame the surface mounted panel and create a chimney through the ceiling and fire stop it somehow once wires are run if that is a concern but is it accepted practice?

My 40 slot panel has most of the 1/2’ and 5/8” holes on the sides and only big holes out the top and bottom. It is a new Square D homeline 100 amp main breaker panel. It would be a real pain to run individual conduit out the sides for all my circuits.

It may seem that I asked this same question in another thread but there I was trying to figure out where panel needs to be located.

My question here is what are some options for how to get wires from top of panel into attic. I hope the chimney idea or the two large 3’ long conduits will do for this application.

 

[78SC4X4]

I'm trying to understand why a 2" hole through the top plate is better than a few smaller holes. Also, are you sure about not having 1/2" holes in the top?The vendor information would indicate otherwise.
https://www.se.com/us/en/product/HO...0-240-v,-1-ph,-mb,-pon,-20-sp,-n1,-combo,-vp/

You could make a 90-degree turn after you exit the panel and then go up through the top plate at a better location.

 

[Raisedonadeere]

I'm trying to understand why a 2" hole through the top plate is better than a few smaller holes. Also, are you sure about not having 1/2" holes in the top?The vendor information would indicate otherwise.
https://www.se.com/us/en/product/HO...0-240-v,-1-ph,-mb,-pon,-20-sp,-n1,-combo,-vp/

You could make a 90-degree turn after you exit the panel and then go up through the top plate at a better location.

Surface mounted on wall. Conduit would go inside top plate an through hole in ceiling dry wall or whatever ceiling cover I use.

Panel is just as I described.

If I can’t run the two large conduits, I would like to bring the individual circuits out the sides as the box was designed to do and go up across inside edge of top plate, staple them there, and building whatever protective structure is needed to pass inspection.

 

[Raisedonadeere]

Surface mounted on wall. Conduit would go inside top plate an through hole in ceiling dry wall or whatever ceiling cover I use.

Panel is just as I described.

If I can’t run the two large conduits, I would like to bring the individual circuits out the sides as the box was designed to do and go up across inside edge of top plate, staple them there, and building whatever protective structure is needed to pass inspection.

By inside top plate I mean it would be interior to the top plate, missing top plate and going through ceiling material.

 

[Dagny]

In Wisconsin we do it all the time. We call it the stuffing rule.

 

[yeldogt]

It must be possible as I see it all the time on block buildings -- there must be some rule on how many Romex you can have in each based on size of pipe.

I know there is a limit on how long the pipe can be

 

[Terry D]

I'm taking that you are dry walling the garage. Since you are surface mounting the panel and not recessing it, it would look cleaner to stub up conduits. As long as if they are only a few feet , any thing over 24" you have to be concerned about derating. And I understand about only one knock out on top for a 2" pipe. There is a large knockout on the sides up at the top, you could ****** a small wireway or trough maybe a 4x4x12 to the panel and come out of that with your conduits. Make sure you get a wireway without knockouts

 

[yatg]

I've boxed around the panel to the ceiling with 1x4's and plywood front pieces. Run cables through the top or out the sides into the troughs. Use cable stackers to keep things neat.
Attic entrance is done with a 1x4 attached to the ceiling, predrilled with multiple size holes based on what's needed now and what might be needed later. To add a cable, pick a hole and drill through the sheetrock.

 

[Raisedonadeere]

I've boxed around the panel to the ceiling with 1x4's and plywood front pieces. Run cables through the top or out the sides into the troughs. Use cable stackers to keep things neat.
Attic entrance is done with a 1x4 attached to the ceiling, predrilled with multiple size holes based on what's needed now and what might be needed later. To add a cable, pick a hole and drill through the sheetrock.

That sounds like a plan.Now just still wondering why I have been unable to find information on requirements for how many in a bundle one can pass through large conduit into ceiling as Dagny says the do often in Wisconsin. It may be don a lot here in KY and I just have not taken notice.

Probably under my nose in the derating tables. My 3’ run put me over the 24” several have mentioned as permissible.

 

[sberry]

There are small ko in the top of panels. I have made a raceway cover, nothing wrong with that but on some cut some drywall where it's easy to fix and go sideways. What goes up got to come done too, main reason to go up is lights but they are from switches not the panel or to go.over door ways.

 

[sparky 1971]

It may be one of the new Homeline panels that have the plastic inserts in the top and bottom. They have romex slots kind of like the stackers. I accidentally got one once and thought it was going to be a *****. It turned out to be not so bad. If it is indeed one of these panels, I think I would build the chase with some pvc sleeved into the attic, but leave it empty for the future and use the slots for now.

 

[Raisedonadeere]

It may be one of the new Homeline panels that have the plastic inserts in the top and bottom. They have romex slots kind of like the stackers. I accidentally got one once and thought it was going to be a *****. It turned out to be not so bad. If it is indeed one of these panels, I think I would build the chase with some pvc sleeved into the attic, but leave it empty for the future and use the slots for now.

I like the idea of leaving the sleeve into the attic empty and available for future use.