Lego created a specific series of bricks in the 1960's for this exact purpose, called Modulex. Originally designed for architects etc, it's still going. https:

Lego created a specific series of bricks in the 1960's for this exact purpose, called Modulex. Originally designed for architects etc, it's still going. https://youtube.com/watch?v=I_OUxVuoxjk https://youtube.com/watch?v=I_OUxVuoxjk