The 36-Bin Storage Cabinet unit provides ample storage space while maintaining a narrow 18" width that would allow this cabinet to fit almost anywhere. Each of the 36 Bins in the Storage Cabinet unit measure 4"W x 11 7/8" D x 4 1/2"H, which provide ample storage space for tools and parts of small to medium size. Cabinets are made of interlocked heavy-duty welded steel with a gray powder coat finish. All bins have a spill resistant 1 1/8"H lip preventing items from falling out. Entire cabinet measures 18"W x 12"D x 42"H.