Anything vertical standing in a traffic aisle gets hit eventually. The guards and pads on this page protect building columns, structural columns and I-beams, and one is built specifically for the columns under gantry and jib cranes.
Materials and duty vary across the group. There is a polyethylene I-beam protector, protective pads for building columns, and a hexagonal column guard made from 1/4 inch steel in a 48 inch height. Which one fits depends on the column and on what is moving around it.
Downspout and pipe guards here cover 2 to 12 inch pipe, for the drain lines and exposed pipe that end up in the way near dock doors. If the column or pipe you need covered is an odd size, send the dimensions and what is moving near it and we can match a guard to it.