Seat height, seat depth, tilt, lumbar support and armrests - the five numbers that hold the rest of the desk together.

1. 01Seat height: the measurement everything else is built onSeat height sets your knees, and your knees set your shoulders.2026-08-12
2. 02Seat pan tilt: the 5 degrees that decides whether you fidget or acheA seat pan that tilts forward 5 degrees opens your hip angle and lets the lumbar curve hold itself.2026-08-27
3. 03Seat depth: the measurement that decides whether your back gets support at allSeat depth is the one chair number almost nobody checks, and it silently cancels out every other adjustment.2026-09-21
4. 04Lumbar support height: find it by measuring your belt line, not your waistMost adjustable lumbar pads are set 5 cm too low, because people aim them at the sensation of 'lower back' rather than at the actual inward curve.2026-09-23
5. 05Armrest height: how high before they start lifting your shouldersArmrests are the feature most often set too high, because raising them feels like support.2026-09-25
6. 06Backrest angle and tension: the two settings people never touchRecline angle and recline tension are separate adjustments, and on most chairs they are confused with each other.2026-09-27