Posted by MoparNorm [71.110.251.13] on Monday, February 28, 2011 at 00:23:30 :
In Reply to: Re: Four post freestanding lift posted by dogfoot [205.188.116.76] on Sunday, February 27, 2011 at 19:21:58 :
The Lift specs will tell you the requirements and most lifts have specs on-line, in fact Rotary has everything in PDF format on line.
IIRC, the minimum thickness is 4".