beam 96 when the adjustable freight stacking support is deployed a securing plate 158 abuts the side of the cradle shaped recess that is closest to the locking edges 142a 144a of the cradle brackets mounting base 138 the securing plate 158 prevents longitudinal movement of the adjustable support beam 96 when it is deployed cradle bracket securing post 159 is affixed to the cradle shaped recess 154 and passes through a slot not shown in the cradle bracket end 156 of the adjustable support beam 96 to secure the beam against longitudinal movement when deployed the adjustable beam 96 is secured against vertical movement when deployed by a pivotal latch 160 a pivot end 161 of the pivotal latch 160 is pivotally secured within a notch 162 in a notch side 163 of the upper body portion 152 of the cradle bracket 98 by a pivot rod not shown and spring 164 a latch end 165 of the pivotal latch 160 is inserted into a latch slot 166 in a latch side 167 of the upper body portion 152 of the cradle bracket 98 the latch slot 166 is directly opposite the notch 162 the spring 164 pushes the pivot end 161 of the pivotal latch 160 toward the securing plate 158 when the pivotal latch 160 is in an upright or vertical position not shown the cradle bracket end 156 of the adjustable support beam 96 is dropped into the cradle shaped recess 154 of the cradle bracket 98 the operator then pushes the pivotal latch 160.