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the span is the distance between runway centers
for a top running crane the span is measured from the center to center of
runway ASCE rails
for an under running crane the span is measured from the center to center of
runway beams
in this example the span is fifty two feet zero inches
if you don't have a runway support system and we're quoting a new complete
system for you measure of the total distance across the span
the distance from the outer edge to outer edge of the building columns
or ideally give us the floor plan of your building
we'll make allowances for the support columns visit http://hoosiercrane.com/rfq/overhead-crane-request-for-quote.php for a free overhead crane quote