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Blue plastic folding chair with black powder-coated steel frame, 18 inch seat height

National Public Seating

National Public Seating 604 Folding Chair 18" Blue Black 500 lb 4/Carton

SKU CH-W9KA-ZBCXB MPN 604

Heavy-duty folding chair with 19-gauge steel frame, tested to hold 500 lb, contoured blue seat and back, 18" seat height, weighs 11 lb, sold in cartons of four

  • Product typeChair & Furniture Accessories
  • Product colorBlue
  • Supports up to 500 lb static load tested by Bureau Veritas
  • 19-gauge steel frame with metal underbracing for durability
  • Two cross braces and single hinges add stability
  • Contoured seat and back designed for comfort
  • Lightweight 11 lb chair suits indoor or outdoor use

18-Inch Blue Folding Chair

The National Public Seating 604 is a heavy-duty plastic folding chair built for commercial and event use. Its 19-gauge steel frame includes metal underbracing and two cross braces for structural strength. Single hinges on each side add stability while the powder-coated finish resists wear. The chair weighs 11 lbs for easy transport and storage.

Suited for High-Capacity Seating Needs

This model supports a 500 lb static load capacity verified by Bureau Veritas testing, making it appropriate for users requiring reinforced weight limits. The contoured blue seat and back provide comfort during extended indoor or outdoor events. Buyers needing upholstered padding, armrests, or a lower weight rating for lighter-duty applications should consider alternative seating styles.

500 lb Static Load Capacity

The defining specification is the tested 500 lb static load capacity, which determines whether this chair meets the safety requirements for your intended occupancy. The 600 Series construction with 19-gauge steel and cross bracing delivers this rating in a lightweight 11 lb frame. Verify that this capacity aligns with your venue regulations before purchasing.

How it compares

Measured against everything we stock in Office Desks, Chairs & Monitor Arms, at today’s prices. Recalculated every night.

Price $255.99
Typical for this category: the median of 5,255 items is $235.99.

Specifications

Product
Brand nameNPS
Model name604
Product typeChair & Furniture Accessories
Product colorBlue
Size & build
Shipping weight22.23 kg
Package size1118 × 483 × 305 mm

Questions about this item

Should I choose the blue seat with black frame or the other available colour combinations?

The blue seat and back with powder-coated black frame is one option; light grey seat and back with grey frame or red seat and back with black frame are the alternatives listed.

What does the 500 lb static load rating mean when the chair is used daily?

Bureau Veritas tested the chair to hold a 500 lb stationary load; the 19-gauge steel frame, metal underbracing and two cross braces are designed to meet that rating in regular indoor or outdoor use.

How does the single-hinge design affect the chair's stability and folding action?

Single hinges on each side combine with the cross braces to keep the frame rigid when open and allow the chair to fold flat for storage.

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