The Model OFS-311-WD-BLK-01 3+1+1 office leather sofa set delivers a polished, formal seating solution for professional public and commercial spaces, with a cohesive visual profile defined by sleek black upholstery contrasted by warm reddish-brown solid wood framing. Its fixed layout includes one three-seat sofa and two matching single armchairs, sized for balanced, symmetrical arrangement that creates an organized, welcoming impression for entry and meeting zones. A consistent 940mm total back height across all pieces creates a unified sightline, with tailored armrests and structured cushions lending a refined, professional aesthetic suitable for formal business environments. Constructed for sustained commercial use, the set features a kiln-dried solid hardwood inner frame built with 30mm thick structural members, rated to support a 470kg static load across the three-seater, with per-seat static load capacity of 156kg. Exposed lower frames and legs are finished with polished reddish-brown solid wood coated in a stained lacquer, fitted with non-marking plastic glides to protect floor surfaces. Upholstery uses 1.2mm thick black PU faux leather tested to 50000 Martindale abrasion cycles, stitched at a consistent 8 stitches per 30mm for durable seam integrity. Seat cushions are filled with 35 kg/m³ high-density polyurethane foam wrapped in polyester fiber, delivering 60% rebound rate, while backrests use dual-layer high-density foam topped with soft fiber for supportive, structured comfort. All seat and back cushions are fixed in place to maintain neat, consistent positioning over time. Designed for fixed, non-reclining formal guest seating, the set offers ergonomic proportions including a 430mm seat height, 510mm backrest height above the seat, and 180mm armrest height above the seat to support comfortable extended waiting. The three-seater provides 580mm seat depth and 620mm width per seating position, while each single armchair offers 680mm seat width for generous personal space. It is ideally suited for executive office reception areas supporting guest waiting and small visitor meetings, as well as corporate lobby waiting zones built to handle high daily public foot traffic. For procurement planning, note the unbranded set ships primarily pre-assembled, requiring only leg attachment for knock-down units, with a reference assembly time of 40 minutes per set. Each set is packed across 2 cartons, with a reference packaged gross weight of 110kg per item and 1.8 m³ total packaging volume, to support accurate delivery and installation scheduling.