What I was looking for.
Your review: The shelves are loaded to 150-300# each and are very sturdy.
Pros: With shipping reasonably priced. Much sturdier than standard big box and DIY centers. Unused shelf space can be used for a workbench or shop desk. Both of which I have set up.
Cons: The shelves would be easier to use for long and obtuse shapes if there wasn't cross bracing; which I know needs to be in place for the lateral stability(a small problem).