Big-box store
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A big-box store, a hyperstore, a supercenter, a superstore, or a megastore is a physically large retail establishment, usually part of a chain of stores. The term sometimes also refers, by extension,
A Walmart Supercenter, a general merchandise big-box hypermarket in Onalaska, Wisconsin
A Barnes & Noble, a specialty big-box store, in Ann Arbor, Michigan
Interior of Mitre 10 MEGA, a big-box hardware store in Australia
A ParknShop superstore at the Tai Po Mega Mall in Hong Kong
Costco
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Costco Wholesale Corporation is an American multinational corporation that operates a chain of membership-only big-box warehouse club retail stores. As of 2025, Costco is the third-largest retailer in
Big-box store
…in 1975. Bunnings followed in 1995 and Mitre 10 adopted the model with the "Mitre 10 Mega" stores first opening at Beenleigh, Queensland, in 2004. Costco has since expanded across Australia since opening its first store in 2009. Apart from major American big-box stores such as Walmart Canada and briefly…
Building 1 at Costco's headquarters campus in Issaquah, Washington
A Costco in Tlalpan in Mexico City
Australia's first Costco, located in Docklands, Victoria, Australia
A Costco Wholesale store in Hashima, Gifu, Japan