Gardj is an online retailer focused on products for gardens, outdoor living, and home wellness. Its range includes greenhouses in polycarbonate and foil-covered designs, greenhouse accessories, irrigation systems, and raised garden beds made from galvanized metal, polymer, or WPC. The store also offers garden saunas and outdoor wellness products, with models such as QUADRO and barrel saunas available with either wood-burning or electric stoves. Customers can also shop for sauna accessories, including heaters, stones, and lighting, and Gardj lists a sauna installation service.

Other categories include massage chairs, garden sheds, biological toilets, and garden furniture, including furniture sets. The website presents product details, customer ratings, prices, and delivery estimates, with many listed items showing delivery within seven working days. Gardj promotes seasonal offers and discounts, including savings on selected saunas, and provides information and shopping options in multiple languages. Its catalogue brings together practical gardening equipment and products for creating a more comfortable outdoor space, whether customers are growing plants, furnishing a garden, or adding a sauna at home.