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Up to 20% OFF plus FREE shipping until 1/19

Knaack Job Site Storage Chest Box 57.5 Cu Ft 72" Storagemaster Model 90

by Knaack
We currently have 100 in stock.
Save 13% Save 13%
Original price $1,767.99
Original price $1,767.99 - Original price $1,767.99
Original price $1,767.99
Current price $1,536.99
$1,536.99 - $1,536.99
Current price $1,536.99

The Model 90 STORAGEMASTER® 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.


  • 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 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 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 powder-coat finish for superior durability and corrosion resistance
  • Power Pass® Electrical Pass-Thru grommet provides easy, weatherproof power cord access to piano box


Powder Coat Finish Yes
Style Piano Boxes
Material Steel
Steel Gauge 16-ga body, 7-ga skids
Approx. Cu. Ft. Per Unit 57.5
Approx. Product Height (in) 49
Approx. Product Width (in) 72
Approx. Product Depth (in) 30
Approx. Shipping Weight (lb) 380
Warranty 3-Year
Closed Height 49in
Color Tan
Lock System WATCHMAN® IV Lock System
Max. Open Extended Height 78in
Number of Handles 2

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