Separate Base Material From Whole Chair Performance
An aluminium base is a concrete construction detail, but it does not establish the weight, load limit or durability of the complete chair. Those characteristics depend on more than the named material and require their own evidence. When comparing aluminium base office chairs without armrests, ask for the dimensions and relevant usage guidance for each chair. Examine how the base relates to the seat and supporting components. Avoid ranking office chairs by material alone; use the material as one part of an assessment that also covers fit, movement, maintenance and the intended working environment overall.
Establish A Workable Forearm Position
Without armrests, attention shifts towards the desk arrangement and the user's posture during specific tasks. Observe a person using their normal keyboard and pointing device, then check how they handle documents or other equipment. The assessment should establish an appropriate place for the arms without forcing the person closer to, or farther from, the desk than the task requires. Aluminium base office chairs without armrests need this same practical scrutiny as any other seating arrangement. Record the desktop height and equipment positions during a successful trial so that the setup can be reproduced consistently afterwards.

