Jet Top Step

Manhole steps that are safe and simple

These manhole steps were developed to make moving in and out of sewers safe and smooth.

This revolutionary original product incorporates many features, including caution reflectors.


Born in the USA, defining a new era in manhole steps

The revolutionary Jet Top Manhole Step was born from the cooperating research and development efforts of Lane International Corporation in the U.S and Okajima Group Corporation.


Material Guarantee

All Jet Top Step Products meet all ASTM (*1) C-478/AASHTO (*2) M-199 standards, using polypropylene in accordance with ASTM (*1) D-4101 and the deformed bar used in the core (12.5-grade 60), fulfills ASTM (*1) A-615 standard.

(*1) American Society for Testing and Materials

(*2) American Association of State Highway and Transportation Officials


The core material has no exposure, being completely coated in copolymer PP resin. (Refer to [Cross Section Diagram].) It can be fastened by implanting or fore mounting.


Highly safe, visibly functional, used out of sight


Classified by use

  • Grating for Floor in Factory
  • Countermeasure product for torrential rain
  • Various anti-theft devices for galvanized grating
  • Gratings for places of sightseeing and commercial area
  • Best fit grating for architecture
  • Grating for outdoor facilities
  • Gratings for regions with heavy snowfall
  • Safe and simple Manhole steps

Product Showcase

  • 2013 Stainless products features
  • Design Pit
  • High Grip Grating
  • Pressure Welded Grating
  • Jointer Pit
  • Rare metal surface
  • Super Galva Plated Gratings
  • Expanded Metal Grating
  • Water inlet frame box
  • Ecological Wood
  • Ecological plastic recycling products
  • FRP Grating
  • Jet Top Step
  • Okagrate Hand rail Bracket
  • Under Hole Nut
  • Boshin