Start with the room's material relationships
Place wood base office chairs with fixed-height backrests beside the surfaces they will accompany. Examine the actual base colour and finish instead of assuming that all wooden elements will coordinate. Timber species, surface treatment and visible appearance need individual confirmation where they matter to the interior brief. View the base from seated positions as well as from the room entrance. Check whether table supports or desk panels obscure it. This gives the office manager a realistic view of how much influence the wood base has within the complete furniture arrangement during everyday use of the space.
Give the fixed backrest a practical trial
Once the material relationship is understood, assess where the backrest contacts each intended user. Ask people to sit in the position they adopt for the relevant task, with work placed at its normal distance. Watch for users moving forwards simply to reach the table, then ask whether they can return comfortably against the backrest. Its height cannot be changed independently, so an unsuitable vertical contact point needs careful consideration. For office chairs used by several colleagues, include different torso lengths and seating habits rather than expecting one person's assessment to represent everyone using the room.

