DBM Supplies came first. It was set up as a retail building supplies business in NSW, and ran that way for years. When the time came to build something at scale, it became clear that a retail counter operation could not run on a portal-driven, drop-ship, wholesale-only model. The two models are structurally incompatible.
So Discount Building Material was set up as a separate entity from the ground up. Wholesale only. Portal driven. No retail counter, no walk-in trade. DBM Supplies continued under its own operations as a retail business and today buys stock from DBM on the same wholesale terms as any other reseller. Different model, different operations, different customers.