Pave Tool offers WeberMT's Full Line of Plate Extensions ranging from the CR3, CR5 - CR9 and extensions for the SRV.

Here is a Full List of Extensions Available:

Weber CR-3  24" Extension
Weber CR-3 28" Extension
Weber CR-5 28" Extension
Weber CR-6 (15) 29" Extension
Weber CR-7 (14) 32" Extension
Weber CR-8 (13) / CR-9 34" Extension
Weber SRV Extension Shoe 12in. high x 6" wide
Weber SRV Extension Shoe 12" high x 4" wide