It features a tubular steel frame and has four wire shelves.
Brad's Deals Editor Candace,
This Castlecreek Compact Walk-In Greenhouse drops from $59.99 to $50.99 at The Sportsman's Guide. Plus activate this free 3-Month Buyer's Club Trial Membership to drop the price further to $45.89 and get free shipping. This is the lowest price we could find for any comparable greenhouse by $13. It is made of tubular steel, has two shelving frames with two wire shelves each, and has a roll-up zippered front door. It measures 57"L x 29"W x 77"H. There is no sales tax (except MN and CA).