Join Date: Jun 2009
Location: Grants Pass, Oregon
Technically speaking, it's the same thing. As planalp mentioned, it is a product. A product is simply a multiplication. In torque's case, it's a distance (ft) times a force (lbs) and you get ft*lbs, more commonly expressed as ft-lbs.
In math land it doesn't mater if you reverse the order of the two when obtaining a product (multiplication), the result is the same. Example: 2x10 = 20 or; 10x2 = 20. Given this, ft-lbs is the same as lbs-ft.