This document discusses the design of concrete forms. It outlines principles for designing forms to withstand lateral pressure from concrete pouring. Key components like sheathing, joists, and stringers are analyzed as beams for bending, shear, and deflection. Tables provide design equations and material properties. Examples demonstrate how to calculate maximum span for sheathing and design lateral bracing for walls, columns and slabs. The goal is to produce forms with adequate strength to resist failure and minimal deflection during pouring.