The Modular Curved 5-Seat Upholstered Sectional Sofa (model SEC-MOD-CURV-001) is an unbranded residential modular seating piece defined by a low-profile, soft rounded block-style form. Its smooth continuous curved silhouette is anchored by a matching upholstery-wrapped plinth base with no exposed legs, creating a streamlined, grounded visual presence that balances structured construction with gentle, inviting curves. An integrated walnut-veneer side table with rounded edges sits seamlessly between seat modules, complementing the sofa’s soft lines with warm natural wood tone, while three included matching upholstered throw pillows add layered visual comfort and coordinated finish. Built for long-term regular use, the sofa features a 30mm thick kiln-dried solid pine internal frame engineered to meet 20000 structural durability cycles. The seat support system uses 4mm thick sinuous springs paired with polypropylene webbing, topped with 180mm thick seat cushions cored with 45 kg/m³ high-resilience polyurethane foam wrapped in a 20mm down layer. The 160mm thick back cushions use blown polyester fiber with a 10mm foam wrap, and curved plywood armrests are padded with 20mm foam for soft edge comfort. The exterior is finished in matte off-white performance fabric or leatherette rated for 30000 Martindale abrasion cycles, with heavy-duty zinc-plated steel clips securing each modular section. Designed for flexible use, the sofa supports custom layout rearrangement to suit evolving space needs, with a semicircular ottoman that functions as both a footrest and standalone auxiliary seat. The integrated side table offers a stable hard surface for drinks and personal items, while removable seat and back cushions simplify routine cleaning and replacement. Non-slip felt pads fitted to the base bottom protect flooring from scuffs and scratches, and the three included throw pillows provide targeted lumbar support during extended seating. Each individual seat position supports a 150kg static load, for a total rated capacity of 5 people, with the full sofa carrying a 220kg net weight. This sectional is recommended for open-plan living rooms 25㎡ or larger, and fits seamlessly into modern, wabi-sabi, or minimalist residential spaces, ideal for casual lounging, family gatherings, and daily entertainment. It pairs naturally with low-profile rounded coffee tables and textured area rugs, and is also suitable for high-end commercial lounge areas and boutique hotel lobbies. For procurement planning, note the sofa ships as one set across two cartons, with a packaged gross weight of 110kg per carton, total packaging volume of 1.8m³ per item, and a reference assembly time of 40 minutes per set. When selecting upholstery, choose between the matte off-white performance fabric or leatherette option to align with intended use frequency and existing decor palettes, and confirm available entryway and placement space meets the minimum 25㎡ requirement to accommodate the curved footprint and flexible layout adjustments.