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Stair Tread

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Stair Tread

Checkered Plate Nosing

Checkered Plate

Checkered plate nosing is the most commonly used in industrial projects. It is made of a raised pattern that offers slip resistance, and can be furnished with different finishes depending on what the project calls for.


Stair Tread

This nosing is made from molten metal that is sprayed onto a surface to create a slip resistant surface, free of resin, tapes, or paints. This offers more durability and flexibility for project uses.


Stair Tread

Abrasive Aluminum Nosing

Abrasive Aluminum Nosing

Abrasive Grit nosing is the next most common type of nosing used. It, like checkered plate, is a raised pattern, but while the checkered plate is a diamond pattern, the surface on this nosing looks gritty.


Stair Tread

When carrier plates are used, the bearing bars and the nosing in the front five inches shall be welded to the carrier plate as shown.


Stair Tread

On treads over 9 3/4" wide, weld end of center bar also. Note: Length of tread is the distance between outer faces of carrier plates or back to back of carrier angles.



Product parameters
* Treads spanning 4 ft. or more shall have two welds, located at the third points.
Stair Tread


Stair Tread
Number of
Bearing Bars
Bearing Bar Thickness"A" Dimension"B" Dimension"C" Dimension
1/8"3/16"
For Grating Depth 1 1/2" to 1 3/4" "B" Dimension = 2 1/4" and "C" Dimension = 3"
**Aluminum Grating is Usually 2 1/4" Regardless of Grating Depth
66 1/16"6 1/8"2 1/2"1 3/4"2 1/2"
77"7 1/16"4 1/2"1 3/4"2 1/2"
87 15/16"8"4 1/2"1 3/4"2 1/2"
98 7/8"8 15/16"4 1/2"1 3/4"2 1/2"
109 13/16"9 7/8"7"1 3/4"2 1/2"
1110 3/4"10 13/16"7"1 3/4"2 1/2"

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