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Dark Gray Diamond-Tufted Curved Arm 3-Seat Leather Sofa Specifications

3S-TUF-DG-MT-2220

Code:PV28YLV1
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2026-09-09 16:26Popularity: 17
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3S-TUF-DG-MT-2220

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PRODUCT MODULE 01 / 06

Physical Dimensions

Automatic mm / inch conversion · Core engineering specifications

Overall dimensions2220 x 830 x 810 mm
Total seat width1790 mm
Individual seat cushion width600 mm
Seat depth (cushion front to back)620 mm
Seat height from floor to cushion top470 mm
Armrest height from floor to top edge710 mm
Backrest height from seat to top edge430 mm
Metal leg height from floor to base rail150 mm
Seat cushion thickness150 mm
Armrest width at outer widest point120 mm
Back Cushion Thickness160 mm
Leg Height / Floor Clearance160 mm
PRODUCT MODULE 02 / 06

Weight, Load & Performance

Net weight / load capacity / users / durability

Product net weight68 kg
Total static load capacity340 kg
Seat foam density45 kg/m³
Seat foam rebound rate60%
Seam stitch pitch8 stitches per 30 mm
Leather/PU upholstery abrasion resistance50000 Martindale cycles
Recommended service life10 years
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

Outer upholstery1.2 mm thick dark gray top-grain leather or high-grade PU
Seat cushion padding coreHigh-resilience polyurethane foam wrapped in 20 mm soft Dacron layer
Backrest padding35 kg/m³ density polyurethane foam with diamond tufting buttons
Armrest paddingMatching density foam wrapped in same dark gray upholstery as seat/back
Internal support frame30 mm thick kiln-dried solid pine and multi-layer plywood
Seat support system80 mm wide elastic webbing spaced 50 mm apart, paired with pocket coil springs
Support legs1.5 mm thick polished chrome-plated mild steel, tapered cylindrical profile
Tufting hardwareDark-finish metal buttons secured with polyester twine
Base rail upholsteryMatching dark gray leather/PU covering the lower front plinth
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 configurationFixed three-position seating with three individual non-removable seat cushions
Back support structureFull-height diamond button-tufted fixed backrest integrated with curved armrests
Armrest functionWrap-around flared curved armrests padded for forearm support when seated
Assembly requirementKnock-down leg attachment only; main sofa body ships pre-assembled
Floor protectionPlastic glides fitted to base of each metal leg to prevent hard floor scratching
Cushion retentionFixed seat cushions secured to frame to prevent sliding during regular use
Weight distributionFour-point metal leg support evenly distributes load across floor surface
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 three-person seating for formal or modern living room layouts, paired with matching armchairs and coffee tables
Office reception areaFormal guest seating for executive reception zones, waiting rooms or corporate lounge spaces
Executive private officeSecondary seating for meetings with small groups in senior management offices
Hospitality loungePermanent seating for hotel lobbies, premium club lounges and high-end restaurant waiting areas
Residential study/denStylish lounge seating for dedicated home study, media room or quiet reading spaces
Color compatibilityDark gray upholstery matches neutral, industrial, contemporary and modern classic interior design palettes
Recommended user capacityThree average-weight adults for regular daily seating use
STANDARD S1

EU Market Entry Requirements * EN Standards

EU Market Access Requirements* EN Standards

EN 1022:2018Domestic furniture seating, test method for stability applicable to this stationary sofa
EN 12520:2015Domestic furniture strength, durability and safety requirements for seating
EN 1334:1996Domestic furniture upholstered furniture bed and sofa flammability performance standard
STANDARD S2

North America Purchasing & Inspection Reference * ANSI/BIFMA Standards

US and Canada office-furniture standards

ANSI/BIFMA X5.4-2023Standard for lounge seating, applicable if specified for commercial reception use
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 strength
GB 18584-2001Limit of harmful substances in wooden furniture, applicable to formaldehyde emission of internal panels
GB/T 16799-2008General technical specification for polyurethane synthetic leather, applicable if using PU upholstery
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 strength;
2. GB 18584-2001: Limit of harmful substances in wooden furniture, applicable to formaldehyde emission of internal panels;
3. GB/T 16799-2008: General technical specification for polyurethane synthetic leather, applicable if using PU upholstery;
Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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PDF · 3S-TUF-DG-MT-2220

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Product Description

The Dark Gray Diamond-Tufted Curved Arm 3-Seat Leather Sofa blends classic chesterfield-inspired styling with streamlined modern design, defined by its continuous wrap-around flared curved arms that integrate seamlessly with a full-height fixed backrest. Diamond button tufting across the back creates a tailored, structured visual texture, while tapered polished metal legs lift the upholstered base rail for a light, refined silhouette. The fixed three-position layout includes individual non-removable seat cushions aligned beneath the tufted back, creating a balanced, formal profile that suits coordinated seating arrangements. Built for long-term regular use, the sofa features a kiln-dried solid pine and multi-layer plywood inner frame, supported by an elastic webbing and pocket coil spring seat system. Seat cushions are cored with high-resilience polyurethane foam wrapped in a soft Dacron layer, with matching density foam padding on armrests and backrest secured with dark-finish metal tufting buttons. Upholstery options include 1.2mm thick dark gray top-grain leather or high-grade PU, fitted to the lower front plinth for a seamless finish. Tapered polished chrome-plated mild steel legs are fitted with plastic glides to prevent hard floor scratching, and evenly distribute weight across four contact points. Fixed cushion attachments prevent sliding during use, while padded curved arms offer dedicated forearm support. The main sofa body ships pre-assembled, with only knock-down leg attachment required for setup. The dark gray finish pairs seamlessly with neutral, industrial, contemporary and modern classic interior palettes, making it suitable for both residential and commercial spaces. It works as primary three-person seating in formal or modern residential living rooms, studies and media rooms, as well as formal guest seating in office reception areas, waiting rooms, executive private offices, hotel lobbies, premium club lounges and high-end restaurant waiting zones. Procurement teams should note the product ships across two cartons, with leg assembly requiring roughly 40 minutes per unit, and plan for appropriate freight handling given the packaged weight and volume. Upholstery selection between top-grain leather and high-grade PU can be aligned with expected usage frequency and project budget, while the material’s abrasion resistance and rated load capacity support consistent performance across high-traffic and low-traffic installation sites.

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