| Desk depth | 60–75 cm | Provides space for a monitor, keyboard, writing materials, and a comfortable viewing distance without making the desk unnecessarily deep. | Choose about 60 cm for compact setups and at least 70–75 cm when using a larger monitor, books, or multiple work materials. |
| Desk width | 100–120 cm for one user | Allows a computer setup and basic study materials to remain accessible without excessive reaching. | A width near 100 cm suits a laptop or single-monitor setup; 120 cm or more is better for a monitor, notebook, and desk accessories. |
| Desk height | Approximately 71–76 cm for many seated adults | Supports a neutral working posture when paired with a correctly adjusted chair. | Prioritize adjustable-height legs or a height-adjustable frame if several people will use the desk or if users vary significantly in height. |
| Monitor viewing distance | About 50–75 cm | Helps reduce excessive forward leaning and allows the eyes to view the screen comfortably. | Use the desk depth to position the monitor far enough away while keeping text readable without leaning toward the screen. |
| Monitor height | Top of screen at or slightly below eye level | Encourages a neutral neck position and limits prolonged upward or downward bending. | Place the monitor on a stable stand or adjustable arm when the screen is too low on the desktop. |
| Keyboard and mouse position | Close to the front edge; elbows near 90° | Helps keep the shoulders relaxed and the wrists in a relatively straight position. | Leave sufficient depth for the input devices without forcing the user to reach forward repeatedly. |
| Clear knee space | At least 60 cm wide and 45 cm deep where possible | Provides room for the legs to move and reduces contact with drawers, panels, or storage units. | Avoid placing fixed supports directly where the knees or feet need to move; check clearance before adding under-desk storage. |
| Legroom height | Approximately 60–70 cm beneath the desktop | Allows the user to sit comfortably with adequate space for the thighs and knees. | Measure the actual opening under the desk, especially when the desktop has a thick frame, drawers, or a crossbar. |
| Chair compatibility | Seat height adjustable to match the desk | A suitable chair helps keep feet supported, knees comfortable, and forearms close to level with the desktop. | Select a desk and chair as a pair; if feet do not rest flat after adjustment, use a stable footrest. |
| Surface thickness and stability | Rigid, level, and resistant to noticeable wobble | A stable surface improves writing comfort and prevents monitor movement during normal use. | Check the frame, joints, and support structure rather than judging stability by desktop thickness alone. |
| Cable management | Dedicated cable space or rear access | Keeps cables away from the user's legs and preserves usable desktop space. | Choose cable openings or a rear channel that can accommodate power, display, and charging cables without blocking ventilation. |
| Storage placement | Within easy reach but outside primary leg space | Frequently used books and supplies can be accessed without repeated twisting or excessive reaching. | Prefer side storage or upper shelving positioned safely; avoid filling the area directly beneath the main work surface. |