- Location
 - Bremerton, Washington
 
- Occupation
 - Master Electrician
 
I prefer stranded as it  can be spliced with compression splices
	
		
			
		
		
	
				
			Yes, the OP was about solid or stranded GEC. Jaggedben threw in that solid #6 couldn't be used in conduit. I was just pointing out that it could for a GEC.
The OP used the term "for grounding" so it's really a guess as to what was implied. It could mean a GEC or bonding jumper or something else for that matter.
				