Choose the keys you use
A full-size keyboard’s case can be centred while its letter keys sit to one side. Start with your next task: writing, number entry or frequent mouse use. OSHA’s workstation guidance recommends placing the keyboard so shoulders can stay relaxed and elbows near the body. It does not mean you must hold one fixed position all day.
Try one small change
Type two ordinary sentences, then enter a short column of numbers. Notice where your hands work and whether the mouse still fits beside the keyboard. Move the keyboard a little and repeat. Leave its height and the other equipment unchanged during this comparison. Keep the surface stable and the cables loose enough. Compare usefulness, not how symmetrical the desk looks.
Keep a task note
Write three items: task, change and observation. For example: “Writing; letter keys closer to my working centre; mouse still within easy reach.” A number-entry task may need another arrangement. Keep a layout that works with your usual keys and accessibility needs. If the furniture prevents a usable setup, ask whoever manages the workspace for help. This is a practical layout experiment, not a treatment or a promise to prevent pain.