This document reviews parameters for designing diaphragm walls in cohesive and cohesionless soils. It discusses two types of diaphragm walls - temporary and permanent - and typical wall thicknesses ranging from 600mm to 1100mm. The review examines past research on diaphragm wall design specifications, analysis of diaphragm wall behavior, the effect of anchor rods, and the design of an anchored diaphragm wall. It concludes that diaphragm wall design could benefit from more clarification and simplification of design parameters and procedures.