This is a single S.R. Smith heavy-duty plastic replacement ladder tread with a center to center measurement of 17-7/8 inches. This ladder tread is designed for older model S.R. Smith residential ladders and is made of heavy-duty plastic. Hardware is not included. Compatible hardware, if required, is item #AQ5006 (sold separately).
Our ladder tread width measurements are from center to center. Please measure the center-to-center dimensions of your rails before ordering.
