UK Office Chair Safety Standards Explained: BS EN 1335 & Gas Lift Rules

BS EN 1335 defines what a UK office chair has to be across three published parts covering dimensions, safety requirements and test methods, and a chair that has been tested to Part 3 is offering evidence rather than an adjective, according to a new explainer from UK furniture retailer Furniture in Fashion. The 2026 report sets out what the standard's Type A, B and C classifications mean, clarifying that the letters describe adjustment provision rather than build quality, and explains how BS EN 1022 underpins the five point base found on castor chairs. On gas lifts, it describes the sealed cylinder as a component whose normal failure mode is a slowly sinking seat, and one that is replaced rather than repaired. The guide also covers the Display Screen Equipment Regulations, the fire safety labelling that applies to upholstered chairs bought for home use, and castor selection by floor type....