ACI 302.1R-04: Guide for Concrete Floor and Slab Construction describes how to produce high-quality concrete slabs-onground and suspended floors for various classes of service. It emphasizes aspects of construction such as site preparation, concreting materials, concrete mixture proportions, concreting workmanship, joint construction, load transfer across joints, form stripping procedures, finishing methods, and curing. Flatness/levelness requirements and measurements are outlined.