CAD image of a Concast Fibercrete PT Cover

Link to the trench photo albumTrench Photos

Ventilated
Rib W.
(Inches)
Width
& Length
Weight
(Pounds)
8021PTV 21.75 26 X 48 31
8025PTV 25.75 30 X 24 35
8031PTV 31.75 36 X 24 40
8041PTV 41.75 46 X 24 72
8051PTV 51.75 56 X 16 60
*Rib width corresponds to top of the channel inside width.