is known for its high-impact strength and superior resistance
to the corrosive environment found in sewers. The steps are
offered in 10", 12" and 13" on center widths, several leg lengths
All Lane Polypropylene Steps meet the requirements of ASTM C-478
and AASHTO M-199. The polypropylene conforms to ASTM D-4101.
The 1/2" Grade 60 deformed reinforcing bar meets ASTM A-615.
Once the concrete is cured to 3,000 PSI minimum, the steps can
be driven into two 1" diameter parallel preformed or drilled
holes, 10", 12" or 13" on center, 3-1/2" deep. We recommend
using a 6 to 10 lb. sledge hammer to install the step.