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Products > Jobsite-Storage-Equipment > Jobsite Storage > Chest > Model 42 JOBMASTER® Chest, 9 cu ft

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Model 42 JOBMASTER® Chest, 9 cu ft


The Model 42 KNAACK® JOBMASTER® Chest measures 42 in long and has a capacity of 9 cu ft. It is versatile, portable and can hold anything from hand and power tools to compressors and features a full lenth piano hinge, stacked and welded to resist break-in attempts. The size is ideal for a personal box on a jobsite or added security inside a trailer.


  • Uses Accessory Tray Model 41
  • WATCHMAN® IV Lock System with recessed lock housing for protection against theft
  • Additional reinforcement between the lock and the side housing
  • Bigger, better hinges offer stronger protection against pry-ins
  • Power Pass® Electrical Pass-Thru grommet provides easy, weatherproof power cord access
  • Heavy-duty 16-gauge steel construction with fully arc-welded seams
  • Powder-coat finish for superior durability and corrosion resistance
  • Four-way skids allow access from any side, making it easier and faster to transport.
  • Closed height 23-3/8 in
  • Open height 39-3/8 in
  • Caster-ready 14-gauge steel skids to accommodate optional casters
  • Recessed handles for positive gripping even with gloves on


FeatureSize / Details
Height23-3/8 in
Width19 in
Length42 in
Approx. Shipping Weight Lbs.114
Approx. Cu. Ft. Per Unit9
Closed Height23-3/8 in
Electrical AccessPower Pass® Electrical Pass-Thru
Lock SystemWATCHMAN® IV Lock System
Powder Coat FinishYes

Package Contents

Part NumberQtyDescription



Additional Chest Models

Model No.HeightWidthLengthApprox. Shipping Weight Lbs.Approx. Cu. Ft. Per UnitClosed Height Buy Online
101036 in30 in66 in4003136 in
203218-1/4 in19 in32 in77518-1/4 in
204828 in24 in48 in1451628 in
206028 in24 in60 in1802028 in
247228-1/4 in24 in72 in21624.528-1/4 in
306828 in30 in60 in2253128 in
3218-1/2 in19 in32 in84518-1/2 in
3621-1/2 in19 in36 in97721-1/2 in
4223-3/8 in19 in42 in114923-3/8 in
482428-1/4 in24 in48 in1581628-1/4 in
483034-1/4 in30 in48 in19425.2534-1/4 in
4830-D35 in30 in48 in2541734-1/4 in
6028-1/4 in24 in60 in19020.2528-1/4 in

Model 42 Inside Dimensions

What are the inside dimensions for the Model 42 box? Thank you
Asked by: Anonymous
Here are the following ​dimensions:​ The height from bottom to the ​top end it is 18 1/8".​ The width between the end ​panel hem return is 39 27/32".​ The width between the end ​panel handle recess is 39 ​1/8".​ The width of the inside of ​end panels is 42".​ The width between front and ​back end panel is 17 1/8".​ The from the back to lock ​system is 16 1/6".​
Answered by: Werner Customer Care
Date published: 2017-07-08

do you offer this item without the skids?

Asked by: Anonymous
Unfortunately we do not offer the box without skids.
Answered by: Werner Customer Care
Date published: 2015-09-30

I have generator that is 24 l x 18.5h x 18.5 deep. What is smallest box that will work for me?

Need minimum interior dimensions on all boxes.
Asked by: Anonymous
The 42 only has a height of 18" so we would not suggest using this model. The 4824 is 23" high, 24" deep, and 48" long.
Answered by: Werner Customer Care
Date published: 2015-05-13

Which model MasterLock

Which MasterLock fits this model?
Asked by: Anonymous
This is designed to be used with a Masterlock No. 1, Masterlock No.5, or American Lock No.50 padlock
Answered by: Werner Customer Care
Date published: 2017-07-09

Where is it made?

What country is it manufactured?
Asked by: Anonymous
Answered by: Werner Customer Care
Date published: 2017-07-08

Lid Gas Strut

Does the model 42 come with a gas strut? The photo shows one but when I look this same model up on Home Depot website as well as other websites, it shows a manually operated lid holder.
Asked by: Anonymous
The model 42 does come with a gas strut.
Answered by: Werner Customer Care
Date published: 2017-04-09

Can I order a box in white.

I plan to mount it in the bed of my Ford Lariat. I'm not a contractor & want a nice looking safe storage box.
Asked by: Anonymous
Unfortunately we only manufacture this box is the Knaack trademark tan.
Answered by: Werner Customer Care
Date published: 2016-12-22
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