The difference between the SolidStep Manual Fold-Down Steps # LC791573 and # LC791572 is that # LC791572 is narrower and will fit into a doorway width range of 25- 28-7/8", while # LC791573 will fit doorway widths ranging from 29" - 36".
Both of these steps have a rise/drop of 8", will work with an entry height range of 27" - 36", and can support up to 400-lbs. view full answer...