Review on Gardman R691 4-Tier Greenhouse Staging - 35" X 11" X 42" High (Discontinued) by Thomas Silva

This is perfect for my greenhouse. They are narrow and spacious. I don't find them flimsy at all. I anchor the wire shelves with zip ties. They give me versatile shelving options - they can be used individually or arranged across my greenhouse with wire closet shelving laid across the top of several of these units spaced 4' apart to give me spacious sq ft area. I've even suspended 4' flourescent grow lights under the shelves. They can be disassembled quickly and tucked away when not in use. My greenhouse is rigid not the plastic grow tents. Regardless of what these would be made of they are not nor are they intended to withstand some of the examples cited in negative reviews. They are not as substantial as my permanent greenhouse shelving, but they also didn't cost as much. I've recommended these to friends and if used properly with realistic expectations, they work great!