I saw this early video on you tube yesterday and taking into account the camera perspective he looks like a giant either that or he works with short musicians. :-)  
 
http://www.youtube.com/watch?v=4vYzwUd1eAM&feature=youtu.be
 
However when I met him very briefly after his gig in London a few years back he seemed shorter than I expected him to be.  
 
So do you have any idea on how tall he actually is?
Jazzyvee

Judging from his body in relation to the size of his bass I would say he's well over 6 feet tall! I'm 5' 11 & my SCSD doesn't look nearly that small in my hands!

He's definitely over 6 feet by at least a couple of inches based on the few time we've met.  
 
Keith

The afro adds a few inches as well.

He's 6'6.

I shook his hand at that gig jazzy and it was huge so if everything is in proportion i'd say he's at least 7'6 :-)
 
Graeme

I always have to laugh.  SC is certainly a 'full grown man', and yet plays that slap style on shaved necks not much bigger than a broom stick, yet you see all these posts about guys having to have these w-i-d-e fingerboards so they'll have room to slap.  Takes all kinds to make a world, I suppose.
 
J o e y