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Low-Profile Biscuit-Tufted Black Leather Four-Seat Linear Sofa Specifications

SOF-L4-BLK-LTHR-3500

Code:332YZ1V1
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2026-08-09 10:24Popularity: 32
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SOF-L4-BLK-LTHR-3500

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PRODUCT MODULE 01 / 06

Physical Dimensions

Automatic mm / inch conversion · Core engineering specifications

Overall dimensions3500 x 1100 x 900 mm
Seat height from floor450 mm
Seat depth (clear sitting surface)700 mm
Seat cushion thickness220 mm
Backrest total height550 mm
Armrest width (each end)280 mm
Armrest height from seat surface180 mm
Base plinth height120 mm
Single seat cushion width980 mm
Back Cushion Thickness160 mm
Leg Height / Floor Clearance160 mm
PRODUCT MODULE 02 / 06

Weight, Load & Performance

Net weight / load capacity / users / durability

Total static load capacity400 kg
Product net weight200 kg
Seat foam density60D
Seat foam rebound rate60%
Leather abrasion resistance50000 cycles
Frame structural service life20 years
Seam stitch pitch30 mm
Individual seat static load120 kg
Seat Foam Density / Rebound40 kg/m³ / 60%
Upholstery Abrasion ReferenceFabric 60000 cycles; leather-class cover 1.4 mm
PRODUCT MODULE 03 / 06

Materials & Structure

Core acceptance fields · Panels / hardware / frame / upholstery

Upholstery contact surface2.2mm thick top-grain black full-grain leather
Internal structural frameKiln-dried solid pine wood with glued/nailed corner blocking
Seat support system80mm sinuous springs paired with 50mm elastic webbing
Seat cushion core fillMulti-layer high-resilience foam with 4cm natural latex top layer
Backrest cushion fill30D high-resilience foam wrapped in 200g soft polyester fiber
Base plinth structurePine wood frame wrapped in matching black leather
Armrest internal structureSolid pine framing padded with 40mm high-resilience foam
Upholstery stitching threadHigh-tenacity bonded polyester thread
Base bottom contact layer5mm thick anti-slip felt pads applied across full plinth contact area
Backrest tufting hardwareCorrosion-resistant zinc-plated steel tufting buttons with leather covers
Timber Frame Section / MoisturePrimary section ≥30 × 50 mm; recommended moisture 12%
Spring / Webbing SpecificationSinuous spring wire 4 mm; elastic webbing 70 mm wide
PRODUCT MODULE 04 / 06

Functions & Adjustment

Adjustment / rotation / tilt / mobility / storage features

Recline adjustmentNo reclining mechanism, fixed backrest angle at 105 degrees
Seating configurationFixed linear four-seat layout with three segmented seat cushions
Assembly requirementFully assembled factory-finished unit, no on-site assembly needed
Cushion designRemovable seat and back cushions for cleaning access
Structural stabilityLow center of gravity from grounded block base, anti-slip felt pads on base bottom
Customization compatibilitySupports custom length and full-wrap leather upgrade options
Floor protectionFull-surface anti-slip felt pads prevent floor scuffing and sliding
Leather maintenanceSurface-compatible with standard leather conditioner and cleaning products
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 room primary seatingServes as main four-person seating for open-plan modern living spaces
Luxury home lounge / media roomLow-profile deep-seat design supports extended relaxed seating use
High-end executive office reception areaPremium black leather finish matches formal professional reception spaces
Modern minimalist interior design schemesClean linear silhouette complements monochrome contemporary decor styles
Large open-plan apartment seating3.5m length fits wide wall spaces for multi-person casual seating
Recommended pairingMatched with low-profile marble or wood coffee table 400mm seat pitch
Open-plan residential living room primary seatingServes as main four-person seating for modern minimalist living spaces
Luxury home lounge or media roomLow-profile deep-seat design supports extended relaxed seating for viewing
STANDARD S1

EU Market Entry Requirements * EN Standards

EU Market Access Requirements* EN Standards

EN 12520:2015Applicable for domestic seating strength, durability and safety requirements
EN 1021-1:2014Applicable for upholstered furniture cigarette ignition resistance testing
EN 1334:2022Applicable for upholstered furniture seam strength performance requirements
STANDARD S3

Standards Applicable to China-Market Projects * GB Standards

Standards applicable to China-market projects

GB/T 1952.1-2012Applicable for sofa mechanical safety and durability performance acceptance
GB 20400-2006Applicable for leather upholstery harmful substance limit acceptance
GB/T 3324-2017Applicable for wood frame structural dimension tolerance acceptance
GB/T 16799-2008Applicable for furniture leather material quality and grading acceptance
Standardized tender description text
This product must meet the following technical requirements:
1. GB/T 1952.1-2012: Applicable for sofa mechanical safety and durability performance acceptance;
2. GB 20400-2006: Applicable for leather upholstery harmful substance limit acceptance;
3. GB/T 3324-2017: Applicable for wood frame structural dimension tolerance acceptance;
4. GB/T 16799-2008: Applicable for furniture leather material quality and grading acceptance;
Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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Product Description

This low-profile biscuit-tufted black leather four-seat linear sofa features a clean, minimalist contemporary silhouette defined by a grounded block base, straight end armrests, and a fixed non-reclining backrest detailed with subtle biscuit tufting. Its linear four-seat layout uses three segmented seat cushions paired with matching back cushions, finished entirely in uniform black upholstery for a streamlined visual presence suitable for monochrome and modern design schemes. Built for long-term use, the sofa is constructed with a kiln-dried solid pine internal frame reinforced with glued and nailed corner blocking. Upholstered in 2.2mm thick top-grain black full-grain leather on all contact surfaces, it uses high-tenacity bonded polyester thread with a consistent seam stitch pitch for durable construction. The seat support system pairs sinuous springs with elastic webbing, while seat cushion cores feature multi-layer high-resilience foam topped with a natural latex layer; back cushions use softer high-resilience foam wrapped in plush polyester fiber, and armrests are padded with high-resilience foam over solid pine framing. The low pine plinth base is wrapped in matching black leather, fitted with full-surface anti-slip felt pads along its bottom contact layer to prevent floor scuffing and unwanted sliding, supporting a low center of gravity for stable seating. The fixed backrest is set at a relaxed angle, and both seat and back cushions are removable to allow easy cleaning access. The sofa is delivered as a fully assembled factory-finished unit with no on-site assembly required, and supports custom length adjustments as well as full-wrap leather upgrade options for tailored specifications. This piece works effectively across both residential and commercial spaces: it serves as primary four-person seating for open-plan modern living rooms and large open-plan apartments, supports extended relaxed use in luxury home lounges and media rooms, and pairs seamlessly with formal professional environments as premium seating for high-end executive office reception areas. It is ideally matched with low-profile marble or wood coffee tables for cohesive layout design. When planning procurement, note the unit ships across two cartons, with sufficient clearance required at delivery points to accommodate its overall length. Its substantial finished weight requires appropriate lifting support during placement, and selected installation surfaces should accommodate the sofa’s full footprint for optimal stability. Teams seeking tailored specifications may request custom length modifications or leather upholstery upgrades to align with specific project design requirements.

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