DIY designer/fabricator Laura Kampf has made a habit of repurposing an unusual type of object into her personal workbenches. Here she reveals what it is: Stage elements, i.e. the modular support units that stages are made out of. The first reason for her choice is that the elements are height-adjustable:

Second reason, they're super sturdy. Third, they're relatively cheap if bought used.

They are, however, rather basic. Thus Kampf makes a series of clever modifications here to improve the workbench's UX:

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When I saw the lamp hack alone, I nearly smacked myself in the head. I've got the same arrangement of dog holes in my bench, I've got a lamp like that sitting in a closet somewhere, and am always in want of having a light source exactly where I need it.