#5D BIM

BIM quantity take-off extracts measurable quantities from models for estimating and cost control. Accuracy depends on modeling rules, classification and exclusions. This guide explains the method, limits and how buyers should brief QTO work.

4D BIM links model elements to time. 5D BIM links them to cost. Both depend on a coordinated 3D model and disciplined coding. This guide explains uses, limits, workflows and how to brief specialists without treating 4D and 5D as automatic.