Glossary

Approximately 700 species of tiny, malicious pests that tend to gather in a cloud over your head — also known as gnats, punkies, and midges. They prefer damp places, calm, humid days, and are more active at twilight and early evening. They are strongly attracted to artificial light. No-seeums require insect screen of at least 20 mesh or smaller.

Accessories attached to the leading edge of a stair tread to provide additional slip resistance and support to the tread.

The color of the nosing area of a molded stair tread cover.

There are two sizes of Grip Strut_R Stair Treads available that have been designed with a nosing "Shelf" built into the plank. This shelf is a flat surface at the leading edge of the tread where a strip of cast abrasive nosing is usually mounted.

This characteristic designates the type of nosing, such as Corrugated, Checkered Plate or Cast Abrasive.