09 Hinge Top.jpg 10 Hinge Bottom.jpg 11 Prop 1.jpg 12 Prop 2.jpg

I'm also considering splitting the table down the middle into two halves that would be bolted together in order to make it more manageable for relocation. This adds even more complexity to an already complex problem, but I'm afraid the weight of the assembled unit will be too much to easily handle when moving.

13 Tie In.jpg

I have tried to educate myself about beam calculations and I have a formula that gives me information about the moment at the fixed center.

Moment = 500lbs (40") = 20,000 lb/in = 1667 lb/ft

But now I don't know what to do with that. I checked some websites for steel suppliers and they don't appear to offer the kind of specs on their products that I would need to utilize that equation.

The problems I am trying to solve are:

Material type, size and amount to adequately support the loadA brake mechanism that will hold firmly and also allow the table to rotate a few degreesA hinge/stop that will hold the table completely flat when in the non-stowed positionA way to prop each hinged section in the stowed position (independent from the other)A way to attach the two halves together if I decide the weight is too much to leave in one section

I confess that I'm in over my head. I'm not even sure what discipline is most appropriate to ask these questions of. I've looked around on this forum and there appears to be some very knowledgeable people here. If nothing else, maybe someone can point me in the direction of who better to ask. If I can get at least some of these questions answered I will be very happy.