In some embodiments an adjustable continuous shelf mounting system may comprise a wall standard comprising a plurality of upper slots and a plurality of lower slots. A support bracket comprising: a first support wing coupled to a first upper tongue configured to engage an upper slot of a wall standard and a first lower tongue configured to engage a lower slot of a wall standard; a second support wing coupled to a second upper tongue configured to engage an upper slot of a wall standard and a second lower tongue configured to engage a lower slot of a wall standard; and a shelf lip receiving valley formed between the first support wing and the second support wing. A shelf comprising a load bearing surface and a perimeter lip. The perimeter lip of the shelf is configured to be received in the shelf lip receiving valley of the support bracket.