Shreiner Matrix is sold by the box, with no minimum order.  There are price breaks available at the quantities of 5 and 26 boxes.
Imperial, Plus, and Jazz with a channel width of 3.0 or less are sold in boxes containing 82.7 feet with 36 strips.
Imperial, Plus, and Jazz with channel widths larger than 3.0 are sold in boxes containing 48.2 feet with 21 strips.