I never found the time to write down the exact measurements. But as so many people as for informations I have some pictures for which might help to build the drawer.
You need:
enough wood
a pair of telescopic bar > we bought this one https://www.amazon.de/gp/product/B06X1GDQDJ/ref=ppx_yo_dt_b_asin_title_o08_s00?ie=UTF8&psc=1
screws
some tools (saw, drill, ...)
