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Table top sag calculation5/29
Unless this table will be doubling as a dance floor, what you've spec'd in your drawing should more than adequate. I'd make those aprons at least 1" thick so you can get good purchase when you screw through the steel.
Also, Id use cold rolled angle vs hot rolled.
Why do you need steel?
If you think the table inadequate in support, add one or two 5/4 thick x 3" or more down the center from rail to rail, no breaks.
My first thought when I see steel added in where it is not needed is that a novice did not have any knowledge he could trust.
I prefer dancing on tables with a solid wooden response. I'd let duster go first, though.
Thanks all. I was wondering when you’d show up David. For the record, I’ve been at this for 25 years now so certainly not a novice but definitely not an engineer.
MDF as we all know, likes to sag. It has a hard time supporting itself. So you can't count on it to help with things.
Wood may sag under enough weight, but readily springs back, therefore lending to your solution. Adding wood - beefier cross section- adds to its ability to stay straight. I also am no engineer, but I do know that I prefer a wooden solution.
Why not build it as a torsion box? It would self support without issue.
Thanks Bruce. Because they want it to feel like solid.