I have large and occasional use items that I would like to store correctly in my garage.

Can you buy extra feet for building side-by-side instead of on top of each other?

Is the space between the shelves fixed or can the space be changed (ie adjustable shelf)?

I purchased 4 sets of the 5-shelf 18" wide shelving unit. The room where I plan to use the shelves has a lower ceiling so I can only utilize 4 of the shelves, leaving me with 4 extra shelves to assemble into another unit. However I'd like to be able to buy another set of feet and top caps for it. Are they sold separately or can I get the manufacturer's name/contact to see if I could buy it directly? Thanks.

I bought this shelving unit and it only came with 8 posts. I need the other 8 posts that it was supposed to come with. Do I have to return the entire unit or can 8 posts be ordered to rectify this?

You really should always have this information as part of the description or quick view.

I wanted to know if the shelves were one flat piece or if in fact there are slots or holes in the shelves? I currently have a metal shelving system with the wire shelves. I don't like them because everything falls through the slots. Thanks!

In the specifications it lists assembled height 72 inches
and item height 72 inches.

But I would like to know the individual height of each shelf so that I can judge what type of items are able to go on each shelf.

Thanks