Hey Dave, span is 12 feet between bearing surfaces. I'm wondering what loading I should aim for. I've seen numbers for garages before ( I think 50 and 10) and my guess is that it would be sufficient for my shop. All my machines together will weigh more than an SUV, but they will be fairly evenly spread out over the whole 24x42' surface, and never all be resting on the space between two 12' sills.
