We perform a detailed numerical study of the distribution of conductances P (T ) for quasi-onedimensional corrugated waveguides as a function of the corrugation complexity (from rough to smooth). We verify the universality of P (T ) in both, the diffusive ( T > 1) and the localized ( T ≪ 1) transport regimes. However, at the crossover regime ( T ∼ 1), we observe that P (T ) evolves from the surface-disorder to the bulk-disorder theoretical predictions for decreasing complexity in the waveguide boundaries. We explain this behavior as a transition from disorder to deterministic chaos; since, in the limit of smooth boundaries the corrugated waveguides are, effectively, linear chains of chaotic cavities.