Ergonomic Chair Adjustment Guide (2026)

Your Chair Is Only as Good as Its Adjustments

A $1,000 ergonomic chair provides no benefit if it's not adjusted correctly. Most people sit in their chair at factory settings. Follow this step-by-step guide to dial in every adjustment.

Step 1: Seat Height

Feet flat on the floor, thighs parallel to the ground. If your feet dangle, use a footrest. Your hips should be slightly higher than your knees (about 5 degrees).

Step 2: Seat Depth

There should be 2-3 fingers of space between the back of your knees and the seat edge. Too deep and it cuts off circulation; too shallow and your thighs aren't supported.

Step 3: Lumbar Support

Adjust the lumbar pad to sit in the natural curve of your lower back (about belt-line height). If your chair lacks adjustable lumbar, a small cushion or rolled towel works.

Step 4: Armrests

Elbows at 90 degrees, shoulders relaxed. Armrests should be level with your desk surface so your forearms transition smoothly to the keyboard.

Step 5: Tilt and Recline

A slight recline (100-110 degrees) reduces disc pressure compared to sitting upright at 90 degrees. Use the tilt lock at your preferred angle, or leave it free-tilting for movement throughout the day.