Most IRIS 5-shelf (5-tier) organizers use plastic-based shelves—commonly polypropylene or recycled plastic. Some cube-style IRIS organizers use a wood frame with MDF panels.
IRIS 5-tier organizers are suitable for many home and utility areas, including the garage, pantry, basement, closets, entryway, shed, patio, utility rooms, and laundry rooms.
The plastic IRIS shelves are described as rust‑proof, waterproof, and fully washable. Many models have snap‑together parts that make disassembly and cleaning easier.
Overall dimensions vary by model. Example sizes shown include: 67.5″ H × 17.88″ W × 35.88″ D; 73.38″ H × 17.88″ W × 35.88″ D; 62.62″ H × 11.75″ W × 23.87″ D; 63.62″ H × 11.75″ W × 23.88″ D; and a smaller cube-style option at 29.8″ H × 27.2″ W × 10.4″ D.
Listings highlight durable recycled-plastic or resin construction, strong per-shelf capacities (which vary by model), fixed-height designs for versatile garage or home use, and easy cleaning. Many descriptions also note snap-together or tool-free assembly and materials described as rust‑proof, waterproof, and fully washable.