Height is very important as tall human beings need longer running surface in a treadmill for a comfortable and smooth stride.
For Example: For a person with 5.7 Ft’ height– running surface of minimum 48 inches in Length & 16 inches in width is idle.
For a 6 feet person, ideal running surface should be minimum 54 inches in Length x 19- 20 inches in width
Example for 5ft .7 inch Person – TDM-150 Length - 49.6 x Width - 17.7 inch & for 6 Ft person- TDA 330- Length 54 X Width 20 inches.