Sitmatic Chair Adjustments – Getting the Perfect Fit

Sitmatic's CustomFit system is the most comprehensive chair adjustment toolbox in the industry. Unlike standard office chairs with two or three controls, Sitmatic chairs offer up to six inches of seat height range, independent seat depth adjustment, lumbar positioning, and backrest angle fine-tuning — all accessible via fingertip levers.

The CustomFit Adjustment System

Begin by measuring upper leg length from knee to buttocks to select the correct seat depth. Use padded binders under your elbows to determine proper seat width and arm positioning. Set seat height so feet rest flat and thighs are parallel to the floor. Adjust the backrest angle until the lumbar support fits snugly into the curve of your lower back.

Step-by-Step Fit Guide

Sitmatic provides full video tutorials and written adjustment instructions for every model at its Adjustments resource page. USA-based factory experts are available by phone to guide users through proper setup. Correct chair adjustment is the foundation of total body ergonomics and long-term musculoskeletal health.