Hi Ryan.....Sorry, but I am not very techno savey (pictures), but I can tell you!
First, refer to the Modification section; Increasing cooking capacity...I used:
- (4) pieces of 1/4" all-thread that I cut from a long piece to about 4" - 4.5" [you could use bolts]
- (16) fender washers - 2 top & 2 bottom per stud
- (12) 1/4" nuts - 2 bottom & 1 top per stud
- (4) 1/4" wing nuts for easy attaching - 1 each top
I sent for another bottom grate from Weber. To that I attached the studs tightly to the new grate [nut, fender washer, grate, fender washer, nut]. Do this to make 4 corners. I added handles to the grate that I normally use and that goes on top for easy handling. Then attach the 2nd grate in the same manner useing the wing nuts on top. To take appart, just remove the wing nuts and the top fender washer, lift off top grate and replace fender washer & wing nut on stud to keep from losing.
My 4th grate, I found one that would fit inside the WSM dome, and attached it in the same way. The original grate has the handles, and the extra one goes on top. I hope that this is helpful.