Table deflection vs size. I looked up some engineering formulas. If a
given weight deflects a beam .005" and you double the length of the beam,
the deflection goes up a factor 8 to 0.04. I.E. it is important to supply
support close to the weight as it is a 3rd power law.













Or you could just make it extra stiffy underneath.

UA100, extra stiffy underneath...