This 3-piece cognac leather square arm living room sofa set offers a streamlined minimalist modern aesthetic for refined seating spaces, built with a fixed 1+2+3 seater conversational configuration anchored by black powder-coated tapered steel legs. The coordinated layout features clean, straight square track arms integrated directly into the frame, with elevated leg profiles that create a light, open visual presence rather than a bulky, floor-heavy look. Each piece shares consistent depth and height lines for a cohesive, curated look across the full set, with tight, tailored cushioning that maintains a crisp, structured silhouette over time. Constructed for long-term residential and light shared-space use, the set features a 30mm thick kiln-dried solid larch wood frame with corner-blocked, screwed and glued stress points, paired with a 6mm hardboard back panel and fabric dust cover. The seat support system uses 3.8mm diameter manganese steel serpentine springs with balance wires, topped with 45D high-resilience polyurethane foam cushions wrapped in 200g polyester batting, designed for even weight distribution to prevent permanent indentation. Upholstery is 1.4mm thick top-grain cognac full-aniline leather, stitched at 8 stitches per inch with matching bonded nylon thread for durable, seamless finishes. The 20mm diameter tapered cold-rolled steel legs include integrated non-marking plastic foot glides to protect floor surfaces, and require simple knock-down assembly with the included hex key hardware, taking 40 minutes to complete across the two-carton set. Fixed non-reclining cushions offer supportive, consistent seating for extended use, with a 490mm seat height, 570mm seat depth, 180mm thick seat cushions, 150mm thick back cushions, and 160mm armrest height measured from the seat surface. The leather surface cleans easily with a dry microfiber cloth and pH-neutral leather cleaner, with upholstery rated for 50000 Martindale abrasion cycles, 60% foam rebound, and a total static load capacity of 363kg for the 3-seat sofa. The frame carries a 10-year warranty, with upholstery and components covered for 3 years. This set is well suited for residential living rooms arranged around a central coffee table for family and guest gatherings, open-plan luxury apartment lounges, high-end residential lobby waiting areas, auxiliary home theater seating, designer show home displays, and executive home office guest seating. When procuring, note the total set net weight of 145kg, 1.8 cubic meter packaging volume, and tight-attached cushions without removable covers, and account for clear access to accommodate the largest shipping carton measuring 2200 by 1050 by 850 mm.