FreeCAD: Parametric Table Driven Desk, TV stand, cabinet,

Parametric Table Driven Desk, TV stand, cabinet. A 1000 different ways you could do this. One mistake I made is the sketch constraints on the lap cuts of the box, it kept flipping over, constraints worked that way too. And the depth extrudes should not have + - values, all should come off the spreadsheet, they would've messed up if I had changed the sheet thickness values. This is a design exercise on how I'd go about building a good model, not a tutorial on modelling.
I used at least one shapebinder. But better than shapebinders, I find, is dragging sketches out of their body into the part containing it. Then you can pick up any geometry needed from any other bodies in that part, with external geometry command. It's a powerful sketch technique, I highly recommend it.