Every time we sand anything at all we find that the dust is just too much to deal with and takes hours to clean the shop. So I decided a downdraft sanding box is needed. I’ve read how some say they don’t work very well but I see plenty of how-to videos so someone must like them. Even if it only helped 25% it would be better but after building it and using it I can safely say it is catching at least 75% of the dust, if not more.

So nothing new or secret here, just a video documentation of how I built mine plus the slightly entertaining value of watching us work with a 4×8 sheet in a small shop.