A support platform for use in automated storage and retrieval systems is generally a planar board having an upper support surface. The board further includes opposing end edges and opposing side edges. The end edges each include first and second interlocking members formed therein. The support platform is placed on the racks in the automated storage and retrieval system with items or containers of items placed thereon. Several support platforms are placed on each rack, one behind the other. The end edges of each support platform are interlocked with each adjacent support platform, with each first interlocking member interlocked with one of the second interlocking members of an adjacent support platform.