Tips for searching site

site links




Complete Powerpoint slide presentation for forklift instructors. Ready made training course

Aisleway dimension calculations for reach trucks

reach truck side viewIt might be useful to read the section on counterbalanced forklift truck's aisleway dimensions before reading this page.

Reach trucks can work in much smaller aisleways than counterbalanced trucks saving maybe as much as a third on aisleway space.

The aisleway dimension calculations are similar to the counterbalance ones but the truck's reach distance must be taken into consideration. The calculation is shown as:



Wa = The forklift truck's outer turning radius

LLC = Reach truck's lost load centre

R = The reach distance

L= Length of load

(The lost load centre is the horizontal distance from the centreline of the reach leg wheels to the front face of the forks with the mast fully reached out).

As with counterbalanced forklift trucks whilst this gives the theoretical minimum ninety degree stacking aisle dimension it does NOT take into account any room for real life operator clearance.

Again many manufacturers do not allow for this on their specification sheets so a clearance must be added for the operator. The ABA test uses 23 cm, (9 ins) and this should be regarded as a minimum for trained and skilled operators. Larger dimensions will increase productivity and lead to safer operation.

To recap, the minimum distance between racking uprights should be:

WA = Forklift truck outer turning radius plus

LLC = forklift truck's lost load centre minus

R = Reach distance plus

L = Length of load plus

23 cm, (9 ins)

Click here for counterbalanced forklift truck aisleway calculations.

Disclaimer: The legislative information contained on this web site is my interpretation of the law based on many years in the health and safety business. A definitive interpretation can only be given by the courts. I will therefore not be held responsible for any accident/incident/prosecution arising as a consequence of anyone using any information obtained from this web site.

Translate this website