The nosing on treads, believe it or not, has a code minimum and maximum of how far the nosing projects over the next stair. Nosings are required to overhang a minimum of ?-in. to a maximum of 1-?-in. Also the maximum nosing radius cannot exceed 9/16 of an inch.

Remember to Include Flooring
All of these measurements include the finished flooring, so don’t forget to take those thicknesses into account when planning your stair dimensions.

New anti-slip, non-pinned, self weighted reinforced plastic trench cover
This new Oxford Plastics trench cover has an innovative Flexi-Edge system which greatly reduces trip hazards for pedestrians.

The underside and edge of the Oxford Low Pro are made from a soft flexible material which grips the surface underneath the board and helps to reduce any unwanted movement.

These rubber edges can be replaced and recycled, so you can extend the life of your Oxford Low Pro.

Its innovative design reduces installation time as there is no need to bolt the product down, but is still very stable.

FEATURES AND ADVANTAGES
Heavier that traditional trench covers thanks to its PVC anti slip edge

Central section made from glass reinforced composite

http://www.greaty-grating.com/steel-grating/