How to use this result
Use complete usable positions and the intended system type. The formula is designed for scope comparison, not structural selection.
Unit allowance
Each system uses a different broad component allowance per position.
Complete project view
Protection, professional work, installation and contingency remain visible rather than hidden in a steel-only rate.
Important: This calculator does not determine rack capacity, beams, frames, anchors, aisle width, fire protection or compliance. Obtain an approved site-specific design.