LapGenie comes in two sizes. The regular size is good for people whose thighs are up to 19 inches wide. If your thighs are more than 19 inches wide when sitting, you should order the Extra Large (XL) version. See better LapGenie size details below. LapGenie XL can open wider, and the desk can sit a bit higher. The desk portion is a bit bigger - it can accomodate a larger laptop if needed. See the difference in the XL - extra large (black) and the regular size (fuschia) below.

LapGenie Regular - desktop 10" X 14", maximum height from ground to round knob center 11.75", maximum spread from front leg to front leg 21.5", weight 1.7 pounds

LapGenie XL - desktop 11.5" X 15", maximum height from ground to round knob center 13", maximum spread from front leg to front leg 23.5", weight at 2 pounds