Posted by john foster on Monday, April 17, 2006 at 7:18PM :
In Reply to: not a doctor posted by keithmerk on Monday, April 17, 2006 at 7:06PM :
40 foot span supported on each end. Using 2 I beams or 4 I beams where 2 on each side are stitched together. Need to know what size I beam to carry 10,000, 20,000, and 30,000 pound vehicle. Beams will be braced to prevent twisting. Thanks John