Also in: Disaster Response and Recovery
Storage Position Count and Cube Utilisation
Counts pallet positions from the module pitch and bay layout, then divides occupied cube by building cube.
Example
You enter
- Building width (ft) 300
- Building depth (ft) 400
- Clear height (ft) 32
- Module pitch, two rows plus aisle (in) 201
- Rack row depth (in) 42
- Rack run length (ft) 360
- Bays per row 40
- Levels per bay 6
- Pallets per bay level 2
- Pallet width (in) 48
- Pallet depth (in) 40
- Loaded pallet height (in) 50
- Vertical beam pitch (in) 58
You get
- Building cube 3,840,000 cu ft over 120,000 sq ft
- Aisle floor (ft²) 59670
- Rack floor (ft²) 42840
- Aisle floor share (%) 49.725
- Pallet positions 16,320 positions at 55.56 cu ft each
- Pallet cube (ft³) 55.5556
- Occupied cube (ft³) 906667
- Cube utilisation 23.6% -- 906,667 cu ft of product
- Floor density 0.136 positions per sq ft
- Level clearance share (%) 13.7931
Checked against published worked examples from: Modern Commercial Real Estate.
Details, formula, and sources
ScopeThe worked 300 by 400 ft building reaches 23.6% with half its floor in aisle, which is a normal figure rather than a failing one. Slotting policy, not racking, decides the rest.
Formula or tableBuilding cube = footprint x clear height; positions = rack rows x bays x levels x pallets per bay level; occupied cube = positions x pallet cube; cube utilisation = occupied / building cube.
Source and editionThe facility's own layout drawings, the fire code's aisle and storage requirements as adopted, and its slotting policy.
Free accessGeometry only; no purchased standard is required to reproduce it.
What governsEstimate. AHJ and licensed professional govern.
API field namesbuilding_width_ft, building_depth_ft, clear_height_ft, module_pitch_in, rack_row_depth_in, rack_run_length_ft, bays_per_row, levels_per_bay, pallets_per_bay_level, pallet_width_in, pallet_depth_in, pallet_loaded_height_in, beam_pitch_in, building_cube_ft3, aisle_floor_ft2, rack_floor_ft2, aisle_floor_share_pct, pallet_positions, pallet_cube_ft3, occupied_cube_ft3, cube_utilization_pct, positions_per_ft2, level_clearance_share_pct
- Rack run length entered separately from building depth so cross-aisles and dock apron are not counted as storagefacility layout
- Honeycombing not modelled; it varies with slotting policy rather than with geometryspec-v1813 scope