I saw Jim's height adjustable project. Yes his has some craftmanship, and I'm sure he took more than 10 minutes to build it. Now several years ago I was in need of a table. I was too old to kneel to cut the tile I was installing in a house we no longer lived in, so I needed something fast to do the job at hand.
At that time height adjustable wasn't something I needed, but with the roller stands I was using as my base it was doable. In years since this stupid thing has been in constant use holding one tool or another, sometimes high, sometimes low, but that feature has been used a bunch. For assemblies, especially on taller pieces it allows you to reach without being on a ladder as you may need to be if you were working on a standard height bench, so low probably more than high, but as a tool stand higher is it's most used position.
Not really much to see, but it is functional, just not pretty. I couldn't find the pic of it's bottom, but it has some crossing 2x4 material that frames it around the tops of the rolling supports, so the top isn't shifting back and forth, as it is on rollers.
I'm not sure if those roller stands are still being made, but when I bought them, ehhhhh, maybe 35 years ago at Sears they were on sale for Christmas for something cheap apiece. I thought I could use them on jobs, so I got a pair of them. I believe they have been in constant use since then, Sort of made them a budget buy.
In use doing that first tile job. All of the wood for the top, and frame had been in my truck bed, and was just days away from a fire, everything was warped from being rained on, and laying on top of a bunch of stuff I had been hauling around for way too long. So if it looks kinda dodgy, well it was, and still is, but it is sound, and does what it needs to do. Doing anything wet, like the tile saw, or finishing, I usually throw a piece of plastic over the top. That poor plywood has seen enough wet stuff already.
Showing the range of the height adjustability. Roughly 22" to 37 or so, from memory, also kinda dodgy.
This is it without the tile saw on it. Doesn't everyone have some pristine plywood like that, you should see the 2x4's look like a dogs hind leg, bent and twisted they were. Only thing making them straight is a lot of nails, and several screws.
I am suggesting you make one like Jim did, this one is functional, that is all I'll say about it. Born of desperation for a work table, all of the ingredients were in the truck, and it took all of 10 minutes to knock it together. I was doing the cutting in the basement, in case you are trying to figure where it is. Mess was well contained down there, as it was around 15 degrees outside. My original plan was to do the cutting on the tailgate of my truck, Saw was acting weird, like it was too cold. That is what put me in need of a flat work table after a couple of cuts on the floor.