On Aug 4, 6:44*pm, Wayne Whitney wrote:
On 2008-08-04, Steve Barker DLT wrote:

the same 8' x 5/8" rod is required. *be advised, 1/2" rods will not
pass if you're subject to inspection.

Actually, a ground rod can be only 1/2" in diameter, as long as it is
listed (by an NRTL, such as UL). *So the OP should check the rod for a
listing mark.

Cheers, Wayne

I stand corrected-- Home Depot does have 5/8" and 1/2" 8' grounding
rods. I checked when I picked up my acorn clamp. Didn't read about
the UL listing or I would have checked when I was there. All the
markings on the one I have are underground now.

John