Four poster beds often disassemble with subtly different hardware per corner, so labeling first is what separates a smooth reassembly from a frustrating one.
Pro tip: Photograph each post's base connection before removing it, four poster bed hardware frequently differs slightly between the head and foot posts even on the same bed.
Watch out: Four poster beds often disassemble in a specific order dictated by internal cam bolts, forcing a piece before its neighbor is released can strip the fitting.