The service life of attic style shelves is greatly affected by material quality, load-bearing design, usage environment, and maintenance conditions. The conventional service life is 10-15 years, and with some high-quality products or proper maintenance, it can be extended to more than 20 years. The specific differences are mainly determined by the following factors: 1、 Core influencing factors: key variables determining service life Material quality and structural strength Steel quality: Shelves made of Q235 or Q355 high-strength carbon structural steel (load-bearing main) and cold-rolled steel plates (platform panels) have stronger resistance to corrosion and deformation, and a service life 3-5 years longer than ordinary low-carbon steel shelves. Welding/connection process: The structure is fixed with full welding process (instead of spot welding) and high-strength bolts (grade 8.8 or above), which is less likely to loosen or break due to long-term load-bearing and has a more stable foundation life. Matching degree between load-bearing design and actual load If the shelves are overloaded in actual use for a long time (such as a light attic carrying more than 200kg/㎡), it will cause the main beams to bend and the columns to tilt, and the service life may be shortened to 5-8 years; Strictly following the designed load-bearing capacity (such as controlling it within 200-500kg/㎡ for medium-sized attic), the structural loss rate is slow, and the service life can be stable at around 15 years. Use environment and corrosion factors Dry and ventilated indoor environment (such as e-commerce warehouses and archives): Steel rusts slowly, and the shelf body can be maintained for 15-20 years without significant damage; Damp, dusty, or corrosive environments (such as food processing workshops and chemical raw material storage areas): If rust prevention treatment is not carried out, steel is prone to rusting, structural strength decreases, and the service life may be shortened to 8-12 years (regular rust prevention maintenance is required to extend the service life). Maintenance frequency and quality Regular maintenance (monthly inspection of connectors, annual rust prevention treatment): can promptly repair loose bolts, apply rust proof paint, reduce structural wear, and extend service life by more than 30%; Lack of maintenance: Loose bolts without reinforcement and untreated rust may cause structural hazards and even lead to premature scrapping.
