| Submitted | Field | Original | Note / Status | |
|---|---|---|---|---|
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Automatic mm / inch conversion · Core engineering specifications
| Overall dimensions | 3400 x 1100 x 780 mm | |
|---|---|---|
| Seat height | 440 mm | |
| Seat depth per position | 680 mm | |
| Armrest height | 530 mm | |
| Backrest height above seat | 340 mm | |
| Floor clearance under base | 30 mm | |
| Armrest width | 280 mm | |
| Throw pillow size | 450 x 450 mm | |
| Cushion thickness (seat) | 250 mm | |
| Seat Cushion Thickness | 180 mm | |
| Back Cushion Thickness | 160 mm | |
| Leg Height / Floor Clearance | 160 mm |
Net weight / load capacity / users / durability
| Total static weight capacity | 545 kg | |
|---|---|---|
| Seat foam density | 45 kg/m³ | |
| Foam rebound rate | 60% | |
| Upholstery Martindale abrasion resistance | 50000 cycles | |
| Seam stitch pitch | 30 mm per 100 mm | |
| Net product weight | 150 kg | |
| Recommended maximum occupancy | 4 adults | |
| Seat Foam Density / Rebound | 40 kg/m³ / 60% | |
| Upholstery Abrasion Reference | Fabric 60000 cycles; leather-class cover 1.4 mm | |
| Per-seat Load Reference | 130 kg/seat |
Core acceptance fields · Panels / hardware / frame / upholstery
| Internal frame | Kiln-dried solid wood frame, 30 mm section thickness | |
|---|---|---|
| Seat support system | Sinuous spring suspension, 3.8 mm wire gauge | |
| Seat cushion core | 45 kg/m³ high-density polyurethane foam with 30 mm soft down wrap | |
| Back cushion filling | 35 kg/m³ foam with fiberfill topper | |
| Upholstery fabric | Matte charcoal black performance tech fabric, 350 gsm weight | |
| Armrest construction | Integral padded curved arm over wood frame, same upholstery as body | |
| Base structure | Low-profile upholstered block base with hidden plastic glide feet | |
| Throw pillows | Matching fabric covers, fiber-filled inserts | |
| Hardware | Zinc-plated steel connection hardware, anti-rust coated | |
| 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 | |
| Leg Connector Specification | Reference M8-M10 with at least 1 mechanical fixing per leg |
Adjustment / rotation / tilt / mobility / storage features
| Seating configuration | Fixed four-position straight layout with two divided deep seat cushions | |
|---|---|---|
| Armrest function | Wide flat padded armrests support resting items and arm weight for all seated positions | |
| Cushion design | Loose reversible seat and back cushions for even wear over service life | |
| Base glides | Hidden non-marking floor glides prevent floor scuffing on hard surfaces | |
| Assembly requirement | Two-section knock-down assembly connecting left and right sofa segments | |
| Accent pillow positioning | Four included throw pillows can be repositioned for lumbar or neck support | |
| Edge support | Reinforced seat edge prevents sagging during long-term entry/exit use | |
| Cushion Service Configuration | Recommended 2removable/replaceable cushion methods |
Verified carton / gross weight / assembly / loading data
| 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 | |
| Reference Packaged Gross Weight | 110 kg/item |
Recommended spaces / users / usage modes
| Primary residential use | Open-plan living room main lounge seating for family and guest use | |
|---|---|---|
| Contract lounge use | Modern office reception areas, lounge zones and creative studio waiting spaces | |
| Studio apartment use | Open loft and studio spaces as the primary seating anchor for entertainment zones | |
| Recommended pairing | Pair with low-profile glass or stone coffee tables at 400 mm height for ergonomic access | |
| Placement requirement | Position against solid wall to support low back profile, leave 50 mm rear clearance for air circulation | |
| User suitability | Suitable for adults up to 135 kg per seating position for daily long-duration use |
EU Market Access Requirements* EN Standards
| EN 12520:2015 | Furniture strength, durability and safety requirements for domestic seating | |
|---|---|---|
| EN 1021-1:2014 | Upholstered furniture flammability test for smouldering cigarette ignition resistance |
US and Canada office-furniture standards
| ANSI/BIFMA X5.4-2020 | Lounge seating durability and safety standard for non-task residential/contract seating | |
|---|---|---|
| ANSI/BIFMA X7.1-2022 | Standard for formaldehyde and VOC emissions from furniture components |
Standards applicable to China-market projects
| GB/T 3324-2017 | General technical requirements for wooden furniture, applicable to internal frame construction | |
|---|---|---|
| GB 20400-2006 | Leather and fur safety limits; apply for fabric formaldehyde and harmful substance limits | |
| GB/T 1952.1-2022 | Test methods for sofas, used for structural strength and durability validation |
This product must meet the following technical requirements: 1. GB/T 3324-2017: General technical requirements for wooden furniture, applicable to internal frame construction; 2. GB 20400-2006: Leather and fur safety limits; apply for fabric formaldehyde and harmful substance limits; 3. GB/T 1952.1-2022: Test methods for sofas, used for structural strength and durability validation; Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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