I bought a Greenlee 24x24x48" "job box", also known as a "gang box", at a garage sale for $20. I added Faultless rubber casters to it, all four casters swivel.
The box is going to be used for long term storage of Signode Cu-30 steel/plastic cutters for strapping and banding. I have about 625 of them and at the rate of one per week, they will take 12 years to sell! So I need a good arrangement for storing them for the long haul.
After adding the casters, I lubricated the casters with marine grease, and liberally applied LPS-3 corrosion treatment to the underside of the box.
I also plan to add desiccant bags and maybe even heating to the box, so that the signode banding cutters would not rust from moisture.
The last set of pictures shows the Raychem 5W/ft 208-230v cable wired in. I used a regular electrical strain relief. The cable is nice because it is self regulating and it reduces output if it senses that it becomes too hot. So it will not cause a fire. I used plenty of heat shrink tubing around al electrical joints and ends. The Raychem cable is both crimped as well as soldered to the supply cable.
I tried measuring the power with a Kill-A-Watt meter. I used about 20-25 ft of the cable. It started off with about 60 watts, and soon dropped off to about 22 watts (it is a hot summer day). Very nice. Seems very safe to use. The cable is armored with rubber outer insulation, then a layer of steel wrap, then thick plastic.
Here's a video explaining how Raychem's self regulating cable works.