18 Gallon 15 x 23 Open Top Office Wastebasket 29 Designer Colors. A conservative, dignified appearance that requires very little maintenance. These decorative wastebaskets will enhance any decor, indoors or out. The heavy gauge, beautifully finished, rolled sheet aluminum construction will withstand years of use in even the most demanding environments. These receptacles have a permanent rolled on non-corrosive, non-rusting aluminum bottom for lasting floor protection.