| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall outer dimensions | 2000 x 1000 x 800 mm | |
|---|---|---|
| Seat height from floor | 450 mm | |
| Seat cushion thickness | 120 mm | |
| Backrest total height above seat | 350 mm | |
| Backrest thickness | 150 mm | |
| Individual module width | 670 mm | |
| Seat usable depth per position | 650 mm | |
| Base plinth height | 330 mm | |
| Backrest arc length | 2400 mm | |
| Seat front edge radius | 1000 mm | |
| Backrest outer radius | 850 mm | |
| Floor contact clearance | 1 mm | |
| Back Cushion Thickness | 160 mm | |
| Leg Height / Floor Clearance | 160 mm |
Net weight / load capacity / users / durability
| Total sofa weight | 120 kg | |
|---|---|---|
| Per-seat static load capacity | 150 kg | |
| Recommended seated occupant count | 3 | |
| Seat foam density | 40 kg/m³ | |
| Seat foam rebound rate | 55% | |
| Back foam density | 30 kg/m³ | |
| Fabric abrasion resistance (Martindale) | 50000 cycles | |
| Design service life (commercial use) | 8 years | |
| Seam tensile strength | 180 N | |
| Seat Foam Density / Rebound | 40 kg/m³ / 60% |
Core acceptance fields · Panels / hardware / frame / upholstery
| Seat upholstery | Woven polyester commercial fabric, blue color | |
|---|---|---|
| Backrest upholstery | Woven polyester commercial fabric, gradient dark brown/coffee/beige color | |
| Seat cushion core | High-density polyurethane foam, wrapped in polyester batting | |
| Backrest cushion core | Medium-density polyurethane foam | |
| Internal structural frame | Kiln-dried hardwood and engineered plywood composite frame, 18mm panel thickness | |
| Base plinth structure | Solid upholstered plinth with integrated internal bracing, no exposed legs | |
| Upholstery stitching | Reinforced polyester thread, 8mm seam pitch | |
| Base bottom protection | Non-slip polypropylene floor glides | |
| Seat support system | 70mm wide elastic webbing, 50mm spacing across seat deck, fastened with galvanized steel staples | |
| Module interlocking hardware | 1.5mm thick galvanized steel connecting brackets, 2 brackets per adjacent module joint | |
| Timber Frame Section / Moisture | Primary section ≥30 × 50 mm; recommended moisture 12% | |
| Spring / Webbing Specification | Sinuous spring wire 4 mm; elastic webbing 70 mm wide |
Adjustment / rotation / tilt / mobility / storage features
| Modular configuration | 3 interlocking seat segments that combine to form a 180-degree half-circle seating unit | |
|---|---|---|
| Backrest configuration | Partial 180-degree curved low backrest spanning 3 seating positions, positioned against the rear wall | |
| Layout application | Suitable for placement against flat walls in lobbies and open waiting areas | |
| Seating orientation | All seats face inward toward the open half-circle center | |
| Floor protection | Hidden bottom glides prevent scuffing and scratching of hard floor surfaces | |
| Upholstery maintenance | Tight woven fabric surface allows regular vacuuming and spot cleaning for daily commercial maintenance | |
| Custom layout flexibility | Segments can be combined with matching curved modules to create full circular or extended serpentine seating runs | |
| Structural stability | Freestanding design meets anti-tipping requirements for 10-degree lateral tilt without overturning, evenly distributed base weight eliminates rocking on level hard floor surfaces | |
| Cushion Service Configuration | Recommended 2removable/replaceable cushion methods |
Verified carton / gross weight / assembly / loading data
| Carton count | 3 | |
|---|---|---|
| Individual carton dimensions | 700 x 1050 x 850 mm | |
| Total gross shipping weight | 145 kg | |
| Total shipping volume | 1.87 m³ | |
| On-site assembly time | 30 minutes | |
| 40ft HQ container loading quantity | 52 units | |
| Reference Package Count | 1 set / 2 cartons | |
| Reference Assembly Time | 40 minutes per set | |
| Reference Module Carton Dimensions | 2200× 1050× 850 mm | |
| Reference Packaging Volume | 1.8 m³/item |
Recommended spaces / users / usage modes
| Commercial office lobbies | Suitable for corporate reception areas, placed against feature walls to provide casual waiting seating for visitors, compact footprint avoids blocking circulation paths | |
|---|---|---|
| Public institution waiting areas | Appropriate for hospital outpatient waiting zones, government service hall waiting areas, durable construction withstands high daily user turnover | |
| Retail and exhibition spaces | Fits in shopping mall atriums, exhibition show rest areas, curved profile creates natural gathering points for visitors without occupying excessive open floor space | |
| Education campus common areas | Suitable for university library lounges, student activity center public zones, conversational layout supports casual group discussion and individual rest | |
| Hospitality public areas | Applicable to hotel lobby corners, airport and rail station premium waiting lounges, low-profile design complements modern interior decor schemes | |
| Recommended surrounding configuration | Pairs with matching round low coffee tables placed at the open center of the half-circle to create complete functional seating groups | |
| Floor surface compatibility | Designed for use on polished tile, terrazzo, laminate and low-pile carpeted hard floor surfaces, no permanent floor fixation required |
EU Market Access Requirements* EN Standards
| EN 1022:2018 | Domestic furniture - Seating - Determination of stability, applicable to anti-tipping stability testing for freestanding curved seating | |
|---|---|---|
| EN 12520:2015 | Furniture - Strength, durability and safety - Requirements for domestic seating, applicable to static load and fatigue testing benchmarks | |
| EN 1021-1:2014 | Furniture - Assessment of ignitability of upholstered furniture - Part 1: Ignition source smouldering cigarette, recommended fire safety standard for public space upholstery |
US and Canada office-furniture standards
| ANSI/BIFMA X5.4-2022 | Lounge and Public Seating standard, applicable to commercial grade structural durability, load capacity and stability verification for high-traffic lobby use | |
|---|---|---|
| ANSI/BIFMA X7.1-2021 | Standard for Formaldehyde and TVOC Emissions of Low-Emitting Office Furniture Systems and Seating, recommended low-VOC material requirement for indoor air quality in commercial spaces |
Standards applicable to China-market projects
| GB/T 3324-2017 | General technical requirements for wooden furniture, applicable to structural strength and dimensional tolerance verification for this sofa | |
|---|---|---|
| GB 20400-2006 | Limit of harmful substances in leather and fur, applicable to formaldehyde and heavy metal content limits for upholstery materials if leather variants are selected | |
| GB/T 19001-2016 | Quality management system requirement, recommended supplier qualification for consistent commercial furniture production | |
| GB 8624-2012 | Classification of burning behavior for building materials, recommended B1 flame retardant grade for upholstery fabrics in public commercial spaces | |
| GB 18584-2001 | Limit of harmful substances in wood furniture, applicable to formaldehyde emission limits for plywood and hardwood frame components |
This product must meet the following technical requirements: 1. GB/T 3324-2017: General technical requirements for wooden furniture, applicable to structural strength and dimensional tolerance verification for this sofa; 2. GB 20400-2006: Limit of harmful substances in leather and fur, applicable to formaldehyde and heavy metal content limits for upholstery materials if leather variants are selected; 3. GB/T 19001-2016: Quality management system requirement, recommended supplier qualification for consistent commercial furniture production; 4. GB 8624-2012: Classification of burning behavior for building materials, recommended B1 flame retardant grade for upholstery fabrics in public commercial spaces; 5. GB 18584-2001: Limit of harmful substances in wood furniture, applicable to formaldehyde emission limits for plywood and hardwood frame components; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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