When investing in modular outdoor furniture from Hongyi Outdoor Furniture Factory, understanding weight capacity specifications becomes crucial for both safety and longevity. The factory engineers each modular piece with precise structural calculations, though specific weight limits vary across collections. Generally, standard residential modular sofas support 250-300kg distributed weight per three-seater configuration, while commercial-grade units withstand up to 500kg. These limits account for frame materials - whether reinforced aluminum, powder-coated steel, or tropical hardwood - alongside cushion density and joint construction. For corner modules, the weight tolerance typically reduces by 15% due to angular stress points. Hongyi's technical team recommends considering dynamic load factors: sudden impacts, movement frequency, and environmental wear. The factory provides customized load testing certificates for bulk orders, particularly for hospitality projects requiring enhanced durability. Always consult Hongyi's installation guidelines for proper weight distribution and maintenance practices that preserve structural integrity throughout seasons.