When portable dock plates are considered, dock bumper spacing must allow for the dock plate's vertical support legs to fit between the chosen bumper spacing. With the truck/trailer spotted solid against the dock bumpers, the 4" to 5.5" bumper projection will allow for the insertion of the portable dock plate support legs.

Note: Confirm dock plate's vertical support legs spacing with client and/or dock plate manufacturer.

There are multiple ways to mount dock bumpers to the loading dock. The drawings below show several examples of installed dock bumpers; first example shows dock bumpers mounted to an open dock application and second example shows multiple details on dock bumper mounting for recessed dock levelers.

Dock bumpers can be affixed by several means of anchoring to a well constructed loading dock, as noted below;
A) Lag bolts or sleeve anchors with minimum 4" length.
B) Welded - plug weld, stitch weld and/or continuous weld (all welds to be cleaned and receive touch-up paint, as required).
C) Cast in anchors (anchor projection from dock face requirement to be suited to bumper(s) selected).