I wrote a bit more above...... You could also do something like in the picture with 40mm multiplex, as a bench of any depth with 250cm length or more (sawmill/wood trade, not a hardware store). Then you just put something underneath from time to time. I once saw a leftover glued laminated timber at the sawmill and had it cut into about 4 cubes (€20) and put them under the board. You don’t even have to fix them. Underneath, for example, baskets from Ikea etc. You can choose or divide the height as you like. I always like it when you "misuse" something, meaning nothing from the standard range and therefore usually very inexpensive but stylish. A friend used Ytong blocks and painted them, another placed nice bricks or natural stones. That puts some expensive design pieces in the shade, is absolutely valuable, and costs just a few euros.