Product Catalog: Knoll: Government/GSA: Files and Storage Categories Accessories Divide and Define. Knoll storage accessories celebrate the way you work. Lateral Files Well-built. Rugged. Diverse. Knoll lateral files maximize vertical space while supporting drawer sized that allow for personalized filing and storage. Other Storage Well-built Rugged. Diverse. Knoll storage offers design flexibility, personalizing workspaces with style. Towers Well-built Rugged. Diverse. Knoll storage towers offer design flexibility, personalizing workspaces with style.