Does a screw pile's helix size affect its load capacity?

Yes, genuinely — a larger helix (the screw plate) spreads load over more soil area, generally increasing bearing capacity, one of several factors (alongside shaft diameter and installation torque) your engineer considers when specifying the right pile for your loads.

This is a genuine engineering selection, not a one-size-fits-all component chosen without calculation.

Related Questions, Guides & Calculators