Knaack has been building heavy-duty jobsite storage in the United States for over 60 years. Their chests, cabinets, piano boxes, and field stations are made from arc-welded 16-gauge steel and designed to live on active commercial jobsites. This storage can survive rough handling, outdoor exposure, and everyday abuse on a busy site. We carry the full range of Knaack storage, including their exclusive Jet Black powder-coat models.
Made Secure for the Jobsite
Every Knaack storage unit is built with fully arc-welded steel seams not bolted sheet metal that can loosen over time. The 16-gauge steel construction holds its shape under heavy loads and repeated relocation. Heavy-duty 4-way skids on most models allow forklift or pallet jack access from any direction, making it easy to stage units on a trailer, truck bed, or inside a staging area without manual lifting.
The patented Watchman IV lock system is a standout feature across the Knaack lineup. The lock housing sits recessed below the surface of the cabinet, keeping it out of reach of pry tools. The tumblers are interchangeable, so you can rekey a unit without replacing the entire padlock — a practical benefit for crews that rotate between sites or hand off equipment to new teams. Knaack units are also available with the Watchman locking system built in as a standard feature, not an add-on.
A Full Lineup for Every Operation Size
Knaack makes storage for operations of every size — from compact hand tool chests under 3 cubic feet to large field station cabinets over 120 cubic feet. Piano boxes give you wide, unobstructed bi-fold lid access for multi-trade crews storing large volumes of tools and materials. Upright cabinets with drawers and adjustable shelves work well for organized stationary storage in a shop or on a staging area. Field stations serve as a centralized hub for the largest commercial and industrial projects.
Knaack's Jet Black lineup uses the same steel construction and Watchman lock system as the standard models — just finished in an exclusive jet black powder coat that resists chipping and hides surface scuffs better than standard colors. Available in five models, the black collection covers piano boxes, upright cabinets, and field stations.
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Frequently Asked Questions
Knaack manufactures its storage products in the United States and backs them with a 3-year limited warranty.
The Watchman IV uses a recessed lock housing that sits below the cabinet surface, keeping the lock out of reach of pry tools. The tumblers are interchangeable, allowing rekeying without replacing the full padlock.
Knaack uses 16-gauge steel with fully arc-welded seams — not bolted-together sheet metal — for maximum structural strength under load.
Yes. Most Knaack models include 7-gauge 4-way forklift skids that allow access from any direction. Some larger models are also rated for crane lift with optional accessories.
The Jet Black models use identical construction and the same Watchman IV lock system. The only difference is the exclusive jet black powder-coat finish, which is more resistant to chipping and hides scuffs better over time.
