Canary Closets & Cabinetry offers two types of drawers, Zargen and doweled vinyl. It has three different configurations, the company says. The Zargen drawer box by Grass America offers 80% extension in a white epoxy coated steel side with a "ramp-in" self-closing feature and 100 lb. load capacity. Available in white only. The vinyl drawer box - BHK drawer sides doweled together with 5/8-in. thick hardrock maple vinyl wrapped components with two slide choices: full extension ball bearing slide rated at 100 lbs. or a Blum concealed undermount slide with self-closing feature.