I should take pictures of my case, but this is a general question too. Someone else already built this way and I'm trying to understand if it's okay or not:2x4's vertical for the 4 posts of the shelving unit2x4's horizontal just screwed into the post ones across the front2x4's horizontal screwed into the front horizontal 2x4's and screwed in the back into exposed studs (it's a garage).wafer board placed on top of the grid of horizontal 2x4'sIt seems pretty sturdy but this one thing bugs me:The only transfer of weight from the grid of 2x4's to the posts is the fact that they are screwed in. There's no place where anything but air is below any of the horizontal 2x4's. Shouldn't they have something like some 2x4 vertical posts directly below to support their weight? Or are screws like that really strong enough to hold up the whole shelf even under hundreds of pounds of stuff?If necessary, I'll add photos, but I really want to understand this general question: Are good screws strong enough to hold large amounts of weight when we're talking about screwing 2x4's together and such? via /r/DIY http://ift.tt/2n47vLg
