easy to make tiered shelving?

[SheilaJ]

I actually have a wire shelf unit like you describe, and I like it a lot. But I also have an HID over a banquet talbe that I used to use for tropical hibiscus over the winter. I got tired of the hibiscus (too many bugs, not enough light) and switched to phals and minicatts instead. I'm looking for a way to stairstep to make the most of the limited growing space I have.