Keel Block for On Land Dry Storage - 2006 Bavaria 46 Cruiser

[Danmark]

I need to know the maximm width of the keel on my 2006 Bavaria 46.  I have the standard non-lead(iron) keel which flares at the base to a flat bottom.

I am having a Keel Block Stand made to support my yacht on Dry. 
If anybody can send me the answer to this question quickly, I would sure appreciate it.