Workstation Chair Breakdown: Specifications, Materials & Why Upholstered Chairs Still Win

Introduction

The chair shown is a classic upholstered workstation chair: fully covered fabric seat and back, loop-style molded armrests, a 5-star base with twin-wheel casters and a right-side lever for pneumatic height adjustment and tilt control. It’s a simple, durable design widely used in offices, training rooms and institutional settings. Below you’ll find a tender-style technical specification, construction & materials breakdown, mechanism details, upgrade options, a comparison chart vs net (mesh) back chairs, typical customer pains this design addresses — and a clear call to action.

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Key features (at a glance)

• Upholstered seat and back (fabric) with high-density foam

• Fixed loop molded armrests (plastic)

• 5-star nylon base with twin wheel casters (mobility)

• Pneumatic height adjustment with tilt/lock and tension control

• 360° swivel

• Simple, cost-effective to produce and repair

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Technical Specification 

1. Scope

This specification describes the materials, construction, performance and test requirements for a traditional upholstered workstation chair suitable for office and institutional use.

2. Standards & Compliance

• Materials to comply with applicable BIS/ISO norms where relevant for chair safety and mechanical fittings.

• All metal components to be free from burrs and sharp edges; finishes to be corrosion-resistant.

3. Construction & Materials (detailed)

3.1 General

• Chair type: Upholstered, medium-back workstation chair with fixed loop armrests and gas height adjustment.

• Color/finish: Fabric upholstery (customer selectable), black base and armrest finish as standard.

3.2 Frame & Internal Structure

• Seat & back Shell: Back in Polymer Composite inner and outer and seat in multilayer ply with T nuts and Alen bolts with MS Flat for Seat and back.  

• All joints should be reinforced and protected from vibration loosening.

3.3 Upholstery & Foam

• Fabric: CRAP fabric, abrasion resistant (≥ 30,000 Martindale rubs recommended for office use).

• Foam: High-density moulded PU foam; seat density 35–45 kg/m³ (HR foam preferred). Minimum seat foam thickness: 40–60 mm depending on comfort grade.

• Back foam: 20–40 mm high-resilience foam contoured for lumbar support.

3.4 Armrests

• Type: Fixed loop armrests moulded from reinforced injection moulded polypropylene. Ergonomic profile with rounded edges.

• Secured to seat/back with M6 or higher-grade fasteners and fittings.

3.5 Base & Casters

• Base: 5-star nylon base (injection moulded) with reinforced ribs; optional polished aluminum base upgrade.

• Casters: Twin-wheel nylon castors suitable for office flooring; optional soft rubber castors for hard floors.

3.6 Gas Lift & Mechanism

• Gas lift: Pneumatic gas cylinder compliant with Class 2/3 specifications; stroke/height adjustment range approx. 85 - 100 mm (typical). Rated to support at least 110–120 kg working load.

• Mechanism: Single-position Synchro tilt mechanism with tension control and tilt lock. 360° swivel on sealed ball bearings

4. Tests & Acceptance Criteria

• Static load test on seat and back per relevant standard (no permanent deformation at specified loads).

• Cycle test for mechanism and casters (recommended minimum 50,000 cycles).

• Visual & dimensional inspection against tender drawings.

5. Finish, Packing & Warranty

• All painted / metal parts to be powder coated or polished.

• Chairs to be packed in corrugated cartons with protective foam.

• Minimum warranty: 12 months for manufacturing defects (mechanics & gas lift 12–24 months recommended).

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Construction & Materials — What’s happening inside

Seat and base

• The seat with moulded plywood cushioned with foam bonded on top and fabric cover stappled to form with polymer cover.

• The 5-star base distributes loads, reinforced ribbing increases fatigue resistance.

Backrest

• Polymer inner and outer Upholstered full back with foam for lumbar comfort; provides continuous contact area—good for pressure distribution.

Fasteners & fittings

• Use of metric fasteners (M6/M8), nylon washers for vibration dampening and lock nuts or thread locker in high-stress joints.

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Mechanism, Gas-Lift & Mobility

Mechanism (tilt & recline)

• Tilt tension control: Adjusts resistance when leaning back (usually via a knob under the seat).

• Tilt lock: Locks chair at upright position (and/or at multiple recline positions if a synchro mechanism is supplied).

• Swivel: 360° rotation on sealed bearing.

Gas lift

• Type: Pneumatic gas lift (DIN/EN rated).

• Stroke/Travel: Typical travel ~85 - 100 mm for seat height adjustment.

• Load rating: Designed for normal office duty (≥ 110 kg); heavy-duty variants use higher rated cylinders.

Mobility

• Casters: Twin-wheel casters for smooth movement; choose Nylone casters for hard floors to avoid scuffing.

• Floor protection: Consider soft casters or chair mats for delicate floors.

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Optional Upgrades & Variants

• Adjustable armrests (height/width) — for improved ergonomics.

• Synchro tilt mechanism — back and seat tilt together for better posture.

• Inbuild lumbar support — for prolonged seating.

• Nylone base — aesthetic and higher load capacity.

• Heavy-duty gas lift for 150–200 kg rating.

• CRAP upholstery for executive finishes.

• Fold-down writing pad / under-seat wire shelf for training room variants.

• Caster upgrades — soft PU for tile/wood; all movable casters for revolving.

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Comparison Chart — Traditional Upholstered Workstation Chair vs Net (Mesh) Back Chair

Feature / Criteria	Traditional Upholstered Chair (this chair)	Net / Mesh-Back Chair
Breathability	Lower — fabric holds heat	High — ventilated mesh
Seat cushioning	Thick foam cushion — softer, pressure distribution	Often thinner foam or waterfall seat — firmer
Lumbar contouring	Foam can be sculpted for continuous support	Mesh offers flexible contouring but depends on frame
Durability (upholstery)	Fabric can wear, but can be re-upholstered	Mesh may sag over years; harder to repair
Maintenance / Cleaning	Fabric needs periodic cleaning; stain more visible	Mesh easier to wipe, but traps dust in weave
Temperature comfort	Warmer in hot climates	Cooler in hot climates
Formal / executive aesthetic	Often more formal and plush	Modern, technical look
Cost	Typically lower entry cost	Can be pricier at similar ergonomic levels
Repairability	Easier to repair/replace foam or fabric	Harder to replace mesh panels
Suitability for long sitting	Very comfortable if high-quality foam used	Excellent if high-quality mesh and ergonomics present
Weight capacity	Can be designed for higher loads by upgrading components	Depends on frame; mesh can be limited

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Why choose this traditional upholstered chair over a net (mesh) back chair?

1. Cushioned comfort for long sessions — High-density seat foam offers pressure relief during long working hours.

2. Warmer & cozier feel — Preferred in cooler environments or for users who dislike the “firm” feel of some mesh seats.

3. Easier to re-upholster & repair — Fabric and foam can be replaced; mesh panels usually need full replacement.

4. Cost-effective — For comparable basic ergonomics, upholstered chairs are often less expensive.

5. Formal appearance — Better suited to conference/executive interiors or institutions that prefer a traditional look.

6. Quieter & solid feel — No tension-creak of mesh; a well-built upholstered chair feels substantial.

7. Customizable padding — Foam densities, seat profiles and upholstery options give flexibility for special needs.

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Customer Pains (common) & How this chair addresses them

Pain: Lower back pain and poor posture

This chair: Contoured foam back with ergonomically designed + tilt lock help maintain proper posture.

Pain: Seat sagging after months of use

This chair: High-density moulded foam resists sagging and can be replaced when worn.

Pain: Wheels that don’t glide or damage floor

This chair: Twin wheel casters; option to upgrade to soft PU casters for hard flooring.

Pain: Too few adjustments (one-size-fits-all)

This chair: Basic ergonomic adjustments (height, tilt, tension). For more adjustability choose variants with syncho mechanisms & adjustable armrests.

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Frequently Asked Questions (FAQ)

Q — Is this chair suitable for 8+ hours of daily use?
A — Yes, if specified with high-density cushioning, correct seat depth and a supportive back. For intensive 8+ hour usage, opt for the higher-spec variant with adjustable lumbar and synchro tilt.

Q — What is the maximum user weight?
A — Standard designs support ~110–120 kg. Heavy-duty variants are available for higher ratings (≥ 150 kg).

Q — How do I clean the fabric?
A — Vacuum regularly; spot clean with mild detergent and damp cloth. For heavy soiling, professional upholstery cleaning recommended.

Q — What warranty is typical?
A — Manufacturers usually offer 12 months minimum; mechanical parts (gas lift / mechanism) sometimes covered for 12–24 months. Confirm with supplier.

Q — Can the fabric be customized?
A — Yes — select from polyester, blended fabrics, or premium PU/leatherette options for bulk or corporate orders.

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Call to Action

Interested in samples, bulk pricing or custom colour/finish options?
WOODBINE — Built to Last
Phone: +91 98109 86205
Website: https://woodbine.co.in
Request a quote, ask for technical drawings, or get a demo sample to test comfort and durability before placing a tender or bulk order.