its a 12awg wire. Before you ask the box is one of those very deep 4-11/16” junction box. Its the neutrals that all have to be together. I suspect I need to strip more than 1” and use one of those very big wire nuts? Any special rules/instructions?

 

Use as large a wire nut as needed. You can even put half in one wire nut and run a pigtail from the first wire nut to a second wire nut with the other half of the wires.

 

A 6 port push-in connector will be much easier for you to deal with.

 

I thought those push in connectors were unreliable and also very hard to use when you have to remove one of the wires. Are the ones homedepot sells good or do you recommend a specific brand?

 

Well, it got more wires than I anticipated. 7 ground wires and 6 neutrals and 4 hots and 2 hots to be exact. I used the big blue wirenuts, and I'm also glad back in the day when this project was nothing but 2 NMB cables, I told myself "meh, use the big junction box, one day it might come handy" and I'm glad I didn't use the 4" one.

Oh and I did try to find a push in connector, but the most I found was 4 wire connector. Nothing that would accommodate 6 or 7 wires.

I thought about the jumper idea to group them, but that would actually make the box more crowded. How do I know exactly how much is too much as far as how crowded the box is getting? Technically I am only using 6 out of 12 possible knockouts.

 

The box size determines the number of conductors allowed Inmit, not the number of knockouts . Some boxes may have the capacity stamped on the back. Others you would use the code tables to find the maximum number.

The push in connectors do not use the same clamping means as a receptacle .

 

This is what mine looks like. Not sure if its detailed enough.