Yellow structural fiberglass stair treads and stair tread covers.

1 1/2″ x 1 1/2″ x 1 1/2″ PROGrid® Molded Stair Tread – 12″ x 144″

12" x 144" Panel | 68% Open
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Product Description Part Number Resin Color Length Location Pieces  

1 1/2″ x 1 1/2″ x 1 1/2″

1 1/2″ deep w/1 1/2″ x 1 1/2″ mesh size

Span
(inches)

250 lb

500 lb

Max lb

18

0.03

0.06

9644

24

0.07

0.13

6848

30

0.09

0.18

5555

36

0.15

0.31

4666

42

0.23

0.48

4063

Deflection values are based on concentrated loads of 250 lb and 500 lb applied at the center of span. Span and deflection values are in inches. Max lb represents maximum experimental failure load.

Technical illustration of 1 1/2 X 1 1/2 X 1 1 /2 inch PROGrid structural fiberglass molded stair tread, 12 X 144 ft.