desk shelf desk wire-wrap board multi-layer storage shelf layered rack household desk bookshelf computer riser

white + wood color [separate elevated rack]] black + deep walnut [separate elevated rack]] white + wood color double layer [elevated rack + shelf]] black + deep walnut two-layer [elevated rack + storage rack]] white + wood color three-layer [elevated rack + shelf]] black + deep walnut three-layer [elevated rack + storage rack]]

orderly storage on desktop