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Home > Bags, Buckets, & Storage > Tool Boxes & Chests > Knaack Model 90 STORAGEMASTER 57.5 Cubic-Foot Piano Box

Model#: 90

Stock#: WRC-90


Knaack Model 90 STORAGEMASTER 57.5 Cubic-Foot Piano Box



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Knaack Model 90 STORAGEMASTER 57.5 Cubic-Foot Piano Box


  • Piano box features patented WATCHMAN IV Lock System with 3-point latch and 7-gauge reinforced lock housing for best-in-class theft prevention
  • Heavy-duty 16-gauge steel construction with fully arc-welded seams
  • Spring guards prevent shifting loads in the piano box from damaging gas springs
  • Piano box lids are supported by dual gas springs that assist in the operation of the lid
  • 4-way skids with 7-gauge construction allow access to the tool storage box from any side, making it easier, faster, and safer to transport
  • Pre-punched skids allow easy installation of casters (available as optional accessories)
  • Heavy-duty recessed side handles allow for enhanced mobility of jobsite box and protection against damage in transport
  • Heavy-duty hinges are extra durable and resist pry-ins
  • Steel storage box features a powder-coat finish for superior durability and corrosion resistance
  • Power Pass Electrical Pass-Thru grommet provides easy, weatherproof power cord access to the piano box


The Knaack Model 90 STORAGEMASTER 57.5 Cubic-Foot Piano Box provides a complete storage solution for tools, supplies, and other materials. Measuring 72in wide and 78in high when open (49in when closed), this job box offers 57.5 cu ft of storage for all trades. Full-width interior shelves enable you to organize and protect tools, and the bi-fold cover opens upwards and folds completely out of the way for unrestricted access. A tan, powder-coat finish provides durable protection against corrosion, while a heavy-duty piano hinge protects against pry-ins and theft. A Watchman IV Lock System aids further in this protection, featuring a recessed, 7-gauge lock housing and a 3-point latch system. Handles are also recessed to avoid damage during transit. Run power to the interior of the gang box with a grommeted, weatherproof Power Pass Electrical Pass-Thru. Spring guards prevent damage from shifting loads during transport. You can access this jobsite storage box from any side thanks to 7-gauge, 4-way skids.


Color: Tan
Width: 72"
Depth: 30"
Finish: Powder Coating
Height (Generic): 49"
Manufacturer: Werner
Material: 16 Gauge Steel
Style: Piano Box
Warranty?: 3 Year
Weight: 380.00