I have a small workspace and so I attempt to put everything on wheels. In an attempt to make better use of my, low to the ground, wood storage space, I decided to build a rolling wood rack. Hardwood would be stored on the front, and sheet goods on the back. I can wheel it out from the wall when needed.
A few specs before I get to my question.
Its build of 2x6 pine and 4x4 fir. The pine is the body and the cedar is the bracing.
Each leg and post is 3x2x6 with an actual dimension of 5x4.5 or so. I used lag replacement screws for tensioning the frame. I used SPAX screws to reinforce. The frame joints are assembled with 4 4x28x140 mm dominos. The uprights are assembled with 2 of the same dominos along with a 6" lag replacement bold through the back side to the base frame to support the dominos. The front bracing is also assembled with a combination of lag replacement screws and SPAX #8's in various lengths.
The arms of the storage rack are 13 ply Russian birch 3/4" with 2x6 pine blocking. The pine blocking is also against and screwed into the the uprights for additional support. They are mounted to the upright with 8x1.5" SPAX #8's.
I have somewhere between 500 and 700bf of white oak on it.
My concern is, now that I have it assembled and the wood loaded on, is how strong those arms are going to be. I put the highest weight closest to the upright. Looking at it, I can see a cascade collapse happening etc. Thus far, it seems rock solid, i see no flexing of the shelves or anything else. Incidentally, it rolls easily too.
My thought is, I'll give it about a week to settle with all the weight and see if anything sags, or if it collapses or cracks. With that much wood and weight, it would be hard to see surviving it falling on you.
Thanks for any opinions!