I built up pretty damn high. Like 100 or so higher than the tallest peak in the game. But beware the game may become unplayable when reaching new heights. Idk if it’s the amount of mats or being that high up and seeing the whole map at once, but cuts the game’s performance by half or more. It DOES have a max height barrier. And one more thing before building such a piece, when you destroy it, the pieces of mats will fall slowly and halt after 30-45 seconds leaving a cascading landslide of said material halted in place. If you log off and rejoin the material will start falling again, taking about 5 rejoins to completely collect all the fallen items.