Teardrop style pallet racking uprights are easily adjustable and are interchangeable between major manufacturers.
Frames have one or more diagonal braces. Standard color is green.
Footplates add stability and strength to the structure. Seismic areas will use bigger footplates. Anchor bolts are used to secure racking.
Teardrop beams typically use a 3-pin connector keep them secured to uprights. Two beams are required to form a shelf.