Right-Angle Stacking Aisle Width
Builds the right-angle stacking aisle for counterbalanced, reach, and turret trucks.
Example
You enter
- Load length along the forks (in) 48
- Operating clearance (in) 6
- Counterbalanced outside turning radius (in) 78
- Counterbalanced load face to centre (in) 14
- Reach truck outside turning radius (in) 55
- Reach truck load face to centre (in) 8
- Turret / VNA clearance past the load (in) 12
- Rack row depth (in) 42
- Building width available (ft) 300
You get
- Counterbalanced aisle 146 in (12.2 ft)
- Reach truck aisle 117 in (9.8 ft)
- Turret / VNA aisle 60 in (5.0 ft)
- Modules across the building 15 counterbalanced, 17 reach, 25 turret
- Reach modules 17
- Turret modules 25
- Rack rows the turret adds 20 more rows, 67% more than counterbalanced
- What the reach truck buys 13.3333
- Reach share of turret gain (%) 20
Checked against published worked examples from: Toyota Material Handling (Toyota Forklifts).
Details, formula, and sources
ScopeBuilds the right-angle stacking aisle for counterbalanced, reach, and turret trucks, then repeats the module of two rack rows plus an aisle across the building. The worked turret layout fits 25 modules against 15, adding 20 rack rows from a truck choice alone. Manufacturer stack data and the fire code govern.
Formula or tableRight-angle stacking aisle = outside turning radius + load length along the forks + load face to turning centre + operating clearance; the turret / VNA case reduces to load length + clearance; module pitch = 2 x rack row depth + aisle.
Source and editionTruck manufacturer right-angle stack data at the actual load and mast, and the fire code's aisle requirements as adopted.
Free accessThe geometry is public; right-angle stack figures come from each truck manufacturer's published specification sheet.
What governsEstimate. AHJ and licensed professional govern.
API field namesload_length_in, operating_clearance_in, counterbalanced_turning_radius_in, counterbalanced_load_center_in, reach_turning_radius_in, reach_load_center_in, turret_clearance_in, rack_row_depth_in, building_width_ft, counterbalanced_aisle_in, reach_aisle_in, turret_aisle_in, counterbalanced_modules, reach_modules, turret_modules, turret_additional_rows, reach_gain_pct, reach_share_of_turret_gain_pct
- Truck dimensions entered per type; a manufacturer's right-angle stack figure at the actual load and mast supersedes the build-uptruck manufacturer
- Module fit whole modules across the entered width; cross-aisles, columns, and egress are not deductedspec-v1812 screening idealisation