Most of our order picker platforms have a base built up to minimize any trip points between our platform and the operator platform.
Dimension "A" is the needed information to make this smooth transition happen. Typically that ranges from 4" to 6" depending on the manufacturer of the order picker. It is also possible to have different heights within a brand, particularly between straddle/non-straddle/furniture designs.
Often we are requested to extend the flap on our Fork Sox product, while the material is very stiff, the addition of Velcro straps enhances the functionality. These forklift fork covers can be outfitted with as many straps as the end user feels are necessary.
This form tells us where you want them:
http://forklift-accessories.indoff.com/media/FRK/Fork_Sox_flap_dimensions.pdf