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Off-White Diamond-Quilted Arm Three-Seater Leather Sofa Specifications

3S-OFFWHT-QLT-ARM-001

Code:NTSAX4V1
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2026-09-21 16:15Popularity: 3
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3S-OFFWHT-QLT-ARM-001

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PRODUCT MODULE 01 / 06

Physical Dimensions

Automatic mm / inch conversion · Core engineering specifications

overall assembled dimensions2600 x 1000 x 910 mm
seat height from floor480 mm
seat depth per position610 mm
seat width per individual position730 mm
armrest height from seat surface250 mm
armrest width240 mm
backrest height from seat surface430 mm
base clearance height50 mm
cushion thickness (seat)200 mm
cushion thickness (back)150 mm
Seat Cushion Thickness180 mm
Back Cushion Thickness160 mm
Leg Height / Floor Clearance160 mm
PRODUCT MODULE 02 / 06

Weight, Load & Performance

Net weight / load capacity / users / durability

total product weight87 kg
static load capacity per seat150 kg
seat foam density40 kg/m³
foam rebound rate60%
seating capacity3 adults
upholstery abrasion resistance50000 cycles
seam stitch pitch30 mm
Seat Foam Density / Rebound40 kg/m³ / 60%
Upholstery Abrasion ReferenceFabric 60000 cycles; leather-class cover 1.4 mm
Per-seat Load Reference130 kg/seat
PRODUCT MODULE 03 / 06

Materials & Structure

Core acceptance fields · Panels / hardware / frame / upholstery

contact surface upholsteryTop-grain cowhide leather, 1.4mm thick
non-contact upholstery (sides/back/base)Match-grade synthetic leather
internal frameKiln-dried hardwood, 30mm thick sections, corner-blocked
seat suspension8-gauge sinuous steel springs, 120mm spacing
cushion fillHigh-resilience polyurethane foam wrapped with 20mm polyester fiber
armrest accent trimSolid walnut veneer, 20mm thick
arm panel quiltingDiamond-pattern stitched upholstery over 10mm foam padding
base panel coveringHorizontal stitched matching upholstery over wood frame
floor glidesHard plastic non-marking glides, 10mm height
Timber Frame Section / MoisturePrimary section ≥30 × 50 mm; recommended moisture 12%
Spring / Webbing SpecificationSinuous spring wire 4 mm; elastic webbing 70 mm wide
Leg Connector SpecificationReference M8-M10 with at least 1 mechanical fixing per leg
PRODUCT MODULE 04 / 06

Functions & Adjustment

Adjustment / rotation / tilt / mobility / storage features

seating configurationThree fixed individual seat positions with segmented backrests
recline functionFixed non-reclining backrest angled 10 degrees from vertical
cushion designTight fixed seat and back cushions, non-removable covers
arm supportWide padded rolled armrests with quilted side panels for side support
floor protectionIntegrated non-marking glides prevent floor scuffing during repositioning
back supportSegmented two-tier back cushions with built-in lumbar contour
modular extensionFixed straight three-seat unit, no built-in sectional connection hardware
Cushion Service ConfigurationRecommended 2removable/replaceable cushion methods
PRODUCT MODULE 05 / 06

Packaging & Logistics

Verified carton / gross weight / assembly / loading data

Reference Package Count1 set / 2 cartons
Reference Assembly Time40 minutes per set
Reference Module Carton Dimensions2200× 1050× 850 mm
Reference Packaging Volume1.8 m³/item
Reference Packaged Gross Weight110 kg/item
PRODUCT MODULE 06 / 06

Applications & Usage

Recommended spaces / users / usage modes

residential living roomPrimary seating for family rooms or formal living spaces, seats 3 adults
office reception loungeGuest seating for executive reception areas with contemporary aesthetic
luxury apartment common areasSeating for shared resident lounges with premium leather finish
hotel guest suite seatingIn-suite seating for high-end hotel rooms and boutique accommodation
configuration recommendationPair with matching leather armchairs and coffee table for coordinated seating sets
maintenance requirementWipe leather surfaces with neutral leather cleaner regularly to preserve finish
STANDARD S1

EU Market Entry Requirements * EN Standards

EU Market Access Requirements* EN Standards

EN 1022:2018Stability test standard for domestic and contract seating
EN 12520:2015Strength, durability and safety requirements for domestic seating
EN 13356:2009Upholstery leather performance requirements for furniture
STANDARD S3

Standards Applicable to China-Market Projects * GB Standards

Standards applicable to China-market projects

GB/T 3324-2017General technical requirements for wooden furniture, applicable to internal wood frame
GB 20400-2006Leather upholstery material safety limits for harmful substances
GB/T 1952.1-2012Mechanical performance test methods for upholstered sofas
Standardized tender description text
This product must meet the following technical requirements:
1. GB/T 3324-2017: General technical requirements for wooden furniture, applicable to internal wood frame;
2. GB 20400-2006: Leather upholstery material safety limits for harmful substances;
3. GB/T 1952.1-2012: Mechanical performance test methods for upholstered sofas;
Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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Product Description

This Off-White Diamond-Quilted Arm Three-Seater Leather Sofa delivers a refined, structured silhouette suited to elevated casual and formal settings alike. Its low block base supports a straight three-seat frame, with wide rolled padded arms trimmed in solid walnut veneer for subtle textural contrast. Diamond-quilted stitching defines the arm panels, while horizontal tailored stitching covers the base panel, creating a polished, cohesive visual profile. The tight fixed seat and segmented two-tier back cushions hold a consistent, tailored line, with a 10-degree fixed backrest angle that balances relaxed comfort and upright support. Each of the three individual seating positions offers a 250mm armrest rise from the seat surface and built-in lumbar contouring, aligning with a seat height of 480mm from the floor for easy, accessible seating. The sofa measures 2600 x 1000 x 910 mm when fully assembled, with 50mm of base clearance above the floor, fitted with hard plastic non-marking glides to prevent scuffing during repositioning. Built for long-term use, the frame uses 30mm kiln-dried hardwood with corner blocking for structural stability, supported by 8-gauge sinuous steel springs spaced 120mm apart beneath the seat. Contact surfaces use 1.4mm top-grain cowhide leather rated for 50000 abrasion cycles, while sides, back, and base panels use match-grade synthetic leather for consistent visual flow. Seat cushions are filled with 40 kg/m³ high-resilience polyurethane foam with 60% rebound rate, wrapped in 20mm polyester fiber, with arm panels padded with 10mm foam beneath the quilted stitching. Each seat supports a 150kg static load, with a total product weight of 87kg. The fixed non-reclining design does not include sectional connection hardware, operating as a standalone straight seating unit. It functions as primary seating for residential family rooms and formal living spaces, guest seating for executive office reception lounges, shared seating for luxury apartment common areas, and in-suite seating for high-end hotel and boutique accommodation. Coordinated layouts pair the sofa with matching leather armchairs and a coffee table for a unified seating group. Procurement teams should note the unit ships across 2 cartons with a packaged gross weight of 110kg, requiring 40 minutes of assembly per set. Regular care involves wiping leather surfaces with neutral leather cleaner to preserve the finish over time. Covers are non-removable, so routine spot cleaning as part of scheduled maintenance is recommended to retain the upholstery’s crisp, premium appearance.

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