How large does a chase need to be for (8) 2-1/2"C

[LarryFine]

Rock86,
Where do I find such a chart? Thanks.

If you can't find one, use the dimensions of the connectors and locknuts, and add a spacing distance, like 1/2".

 

[Rock86]

Rock86,
Where do I find such a chart? Thanks.

I've seen old posts about conduit spacing where someone had one... also a quick google search for "conduit spacing chart" will give you something. Its not an NEC chart