Abstract In membrane systems, force measurements and traditional light scattering studies have proven difficult in practice. Dynamic force data are virtually nonexistent. The tools of statistical crystallography are applied here to polymerized chitin networks and their membrane behavior is compared with electron microscopy data for liposomal networks (Blagoi et al., Biophysics 25, 1017 (1980)). In all cases, Aboav-Weaire's and a perimeter law are verified. Lewis's law shows poor agreement for liposomal and chitin networks with carbon-black particles. Results suggest that statistical disorder in network coarsening can remain persistant on a time scale long compared to light scattering experiments and that in these membrane systems short-range ordering forces play a subsidiary role compared both to long-range (dipolar, electrostatic, etc.) effects and to the purely mathematical requirements of completely filling available space.