Define The Seating Role First
Start by separating spaces according to the activity they support. A chair used during a scheduled meeting has a different purpose from seating at an assigned desk or in a lounge. This selection extends across meeting, task, executive, multipurpose and lounge seating, as well as stools and ergonomic office chairs. Those descriptions help organise an initial comparison, but they do not establish dimensions or adjustment capabilities. Write a short brief for each location, identifying the users, typical activities and surrounding furniture. Then assess how each proposed configuration answers that brief.
Read The Standard Alongside The Configuration
The EN 16139 Level 1 designation concerns the stated strength, durability and safety assessment for general non-domestic seating. It does not describe every feature needed at a workstation. Request supporting documentation for the chair and configuration under consideration, and keep it with the specification. Review any stated limitations rather than assuming the designation answers questions about individual fit, upholstery performance or movement. Where a workplace requires a particular assessment, have the relevant person review the evidence against that requirement before treating the seating brief as complete.

