The stores that sell replacement shelves for computer workstation under $40 are Target, London Drugs, Canadian Tire, Home Depot, Super Store and many more.
The server.
You can find replacement kitchen shelves at Home Depot, either in the store or online. There is also shelving available at Bed Bath and Beyond, Kitchen Source, and Walmart. You can go online and look on the listed stores websites and see the shelving they have available.
I'm Not Really Sure What You Mean By 'Their Stores' Or 'Their Shelves' But The Are On The Shelves
from the shelves
Ikea shelves can be purchased exclusively at Ikea stores. Ikea is currently available in multiple countries and has dozens of stores in the United States.
One can purchase black wall shelves from many different online stores. Some examples of these online stores that provide these black wall shelves include Target, Ikea, and AliExpress.
Stores that order them from manufacturers and put them on the shelves
Cube shelves can be purchased in most department stores that carry furniture, stores such as IKEA, Walmart, Target, Big Lots and Argos all carry these items.
You can find floating shelves at a myriad of retailers. Retailers of floating shelves include Menard's, Wal-Mart, and Target. Most hardware stores or home improvement stores will carry a variety of floating shelves.
Portable office workstations are available from a variety of office supply stores. One interesting store to check out would be the selection at Global Total Office.
Stainless steel shelves can be purchases at furniture stores, home renovation stores and hardware stores. Some stores that could carry them are IKEA, Home Depot, Lowe's, Rona and Canadian Tire.
Bookcases and shelves can be purchased from many general-purpose stores such as Wal-Mart or Target. They can also be bought online from Amazon, or found at furniture stores like Ikea.