7L"  4 3/4W"  3H"
 
The flow of this quarter is perfect. Not too steep where you can't pop tricks off and not too mellow where it's not fun to ride. The coping on the ledge is the icing on the cake; this quarter pipe is honestly one of our most well-rounded obstacles that makes for a perfect desk piece. 
 
(SOLID CONCRETE)
 
This is a massive Quarter Pipe inspired by ideas from @doom.lagoon.