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ULC-CS01

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C-Shaped Upholstered Lounge Chair with Matching Round Ottoman Set Key Specifications 2026-08-02 20:15

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ULC-CS01

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PRODUCT MODULE 01 / 06

Physical Dimensions

Automatic mm / inch conversion · Core engineering specifications

Overall chair dimensions850 x 850 x 720 mm
Seat height420 mm
Seat diameter500 mm
Backrest height300 mm
Backrest thickness175 mm
Ottoman diameter380 mm
Ottoman height400 mm
Seat opening gap width180 mm
Overall chair base diameter850 mm
Seat cushion thickness150 mm
Ottoman cushion thickness80 mm
Backrest wrap angle270 degrees
Finished Seat Cushion Thickness90 mm
Backrest Padding Thickness70 mm
Lumbar Support Zone Height240 mm
Clear Width Between Armrests540 mm
PRODUCT MODULE 02 / 06

Weight, Load & Performance

Net weight / load capacity / users / durability

Chair static load capacity120 kg
Chair net weight range18 kg
Foam indentation load deflection (seat)35 kg/m³
Fabric abrasion resistance (Martindale)30000 cycles
Foam resilience rate (seat)60%
Seat foam compression set10%
Seat Foam Density / Rebound Reference45 kg/m³ / 65%
Back Foam Density Reference38 kg/m³
Upholstery Thickness / Abrasion Reference1.4 mm / 50000 cycles
Five-star Base Static Load ReferenceAcceptance target ≥120 kg; chair reference load 150 kg
PRODUCT MODULE 03 / 06

Materials & Structure

Core acceptance fields · Panels / hardware / frame / upholstery

Outer upholstery (chair & ottoman)Woven polyester blend fabric, matte finish
Seat & backrest paddingHigh-resilience polyurethane foam, layered structure
Internal support framePlywood solid wood composite frame, curved to match cylindrical shape
Chair base bottomNon-slip fabric or felt glide base, no exposed legs
Ottoman internal structureCylindrical plywood shell with foam wrapping
Fabric stitchingColor-matched lockstitch seams on vertical joint lines
Seat cushion base supportPlywood deck panel under foam cushion
Ottoman base supportSolid fiberboard bottom panel with felt glide ring
Foam fire retardant treatmentFire-retardant impregnated polyurethane foam core
Seat Internal Support Board Thickness14 mm bent plywood or equivalent support board
Backrest Internal Frame Thickness14 mm bent plywood/composite reinforced frame
Gas-lift Engineering SpecificationRecommended Class 4; outer tube 50 mm; stroke 100 mm
PRODUCT MODULE 04 / 06

Functions & Adjustment

Adjustment / rotation / tilt / mobility / storage features

C-shaped entry designFront gap allows forward seating access without rotating the chair, fixed non-adjustable backrest wrap-around support
360-degree static seating orientationChair remains stationary on floor; users can face any direction by adjusting position on the round seat
Matching ottoman functionServes as footrest, extra guest seat, or small side table with a tray on top
Modular grouping capabilityMultiple C-chairs can be arranged in clusters, semicircles, or facing configurations for lounge or waiting areas
Fully upholstered exteriorAll outer surfaces are padded and fabric-covered for impact safety in public spaces; no sharp exposed edges
Fixed non-adjustable seatSeat height, back angle, and cushion position are fixed at factory settings, no user-adjustable mechanisms
Quiet floor protectionFelt glide base prevents scuffing of hard floor surfaces and reduces noise during position adjustment
Semi-enclosed privacy support270-degree wrapped backrest creates a semi-private seating nook suitable for focused reading or short one-on-one conversations
Recline Angle / Lock Reference125° with 3 suggested lock positions
Tilt Tension User-weight RangeReference adjustment coverage 120 kg
Height Adjustment Stroke100 mm continuous travel
Rotation / Mobility Configuration360° swivel with 5-caster multidirectional movement
PRODUCT MODULE 05 / 06

Packaging & Logistics

Verified carton / gross weight / assembly / loading data

Packaging units (chair + 1 ottoman)2 cartons
Chair carton dimensions900 x 900 x 770 mm
Ottoman carton dimensions430 x 430 x 450 mm
Chair gross weight21 kg
Ottoman gross weight6 kg
Total volume per set0.708 CBM
Assembly time0 minutes
20ft container loading quantity (sets of 1 chair + 1 ottoman)32 sets
40ft HQ container loading quantity78 sets
Warranty period for commercial use3 years
PRODUCT MODULE 06 / 06

Applications & Usage

Recommended spaces / users / usage modes

Office break-out areasSuitable for open-plan office rest zones and casual meeting areas, offering flexible informal seating for short conversations
Hotel lobby seatingSuitable for hotel lobbies, lounge bars, and waiting areas, arranged in clusters to accommodate solo guests or small groups
University & library common spacesSuitable for student lounges, library reading nooks, and collaborative study areas, with color options to match campus interior schemes
Exhibition & showroom waiting zonesSuitable for brand showrooms, exhibition halls, and event spaces as temporary or permanent visitor seating, with customizable fabric colors to match brand identity
Residential living & study roomsSuitable for home living rooms, reading corners, or children's play areas as decorative casual seating with soft fully-upholstered safety features
Co-working space focus nooksSuitable for co-working office silent zones as semi-private individual seating, supporting 2 hour focused work sessions with partial acoustic isolation
Shopping mall rest areasSuitable for shopping mall public rest zones and department store customer waiting areas, supporting high-frequency daily use by mixed visitor groups
Recommended Matching Desk Size2.4 m executive desk
STANDARD S1

EU EN Standards

European market access and chemical requirements

Safety of upholstered furnitureEN 1022:2018 applies to static load and stability testing of single-seat seating
Foam flammabilityEN 1021:2014 cigarette test and EN 1021:2014 match test apply to upholstered foam assemblies
Office furniture stabilityEN 1335:2018 stability test methods are applicable for lounge seating used in office break areas
Upholstered furniture durabilityEN 15202:2013 applies to strength and durability testing of upholstered seating for non-domestic use
STANDARD S2

North America ANSI/BIFMA Standards

US and Canada office-furniture standards

Seating performanceANSI/BIFMA X2017 static load and durability tests apply to commercial lounge seating
STANDARD S3

China GB Standards

Standards applicable to China-market projects

Upholstered furniture safetyGB 28007 applies to safety requirements for upholstered furniture intended for public use
Formaldehyde emissionGB 18580 E1 level limit applies to internal wood-based panel components
Flammability of upholstered furnitureGB 20286 Level 1 flammability rating is recommended for public space lounge seating
Soft furniture fill material safetyGB 18401 Class B safety standard applies to upholstery fabric and foam fill in direct skin contact products
Standard Tender Description
This product must meet the following technical requirements:
1. Upholstered furniture safety: GB 28007 applies to safety requirements for upholstered furniture intended for public use;
2. Formaldehyde emission: GB 18580 E1 level limit applies to internal wood-based panel components;
3. Flammability of upholstered furniture: GB 20286 Level 1 flammability rating is recommended for public space lounge seating;
4. Soft furniture fill material safety: GB 18401 Class B safety standard applies to upholstery fabric and foam fill in direct skin contact products;
Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.
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Product Overview & Construction Details

This C-Shaped Upholstered Lounge Chair with Matching Round Ottoman Set, model ULC-CS01, is an unbranded lounge seating solution defined by its distinct rounded, cylindrical visual profile. The chair features a 270-degree wrapped C-shaped backrest that curves around a circular seat, with a front entry gap that creates a cohesive, soft-lined silhouette. The coordinating round ottoman mirrors the chair’s upholstered, rounded form for a unified aesthetic. Both pieces have fully padded, fabric-covered exteriors with no exposed hard edges or legs, giving them a seamless, approachable appearance. Color-matched lockstitch seams run along the chair’s vertical joint lines, adding subtle structural detail to the smooth outer surface. Constructed with a plywood solid wood composite internal frame curved to match the chair’s cylindrical shape, the set is built with high-resilience polyurethane foam padding in a layered structure for supportive cushioning. The chair’s seat rests on a plywood deck panel, while the ottoman uses a cylindrical plywood shell wrapped in foam and a solid fiberboard bottom panel for stability. Both pieces are finished with woven polyester blend fabric in a matte texture, and their bases are fitted with felt glide elements to protect flooring. The foam core features fire-retardant impregnation, aligning with commercial public space safety requirements for upholstered furniture. Functionally, the C-shaped front gap allows users to sit forward without rotating the chair, while the fixed wrap-around backrest delivers partial lateral and rear torso support, creating a semi-private seating nook suitable for focused tasks or casual conversations. The chair remains stationary on the floor, with no swivel mechanism, and users can adjust their seating orientation by shifting position on the round seat. The matching ottoman serves as a footrest, extra guest seat, or small side table when paired with a tray, with no built-in storage. Multiple chair units can be arranged in clusters, semicircles, or facing configurations for flexible space planning, as each piece is free-standing with no connecting hardware. The fixed seat design requires no user adjustments, and the felt glide base prevents scuffing and reduces noise when repositioning. This set is suited for a wide range of commercial and residential settings. In commercial spaces, it works well in office break-out areas, hotel lobbies, co-working focus nooks, university and library common spaces, exhibition waiting zones, and shopping mall rest areas, where its durable, stain-resistant fabric option supports high-traffic use, and its rounded form reduces collision risks in busy pedestrian zones. For residential use, it fits seamlessly in living rooms, reading corners, or children’s play areas, with a compact footprint that works for small to medium spaces, and soft padded exteriors that enhance safety. For procurement planning, the set arrives fully assembled with no assembly required, and is packaged in two separate cartons for the chair and ottoman. Commercial use comes with a standard warranty period, though exact terms should be confirmed with the supplier. Material specifications including exact foam density, fabric grade, frame thickness, and glide material require supplier bill of materials confirmation to align with project-specific performance and durability needs.

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