yes, this is what all the box rails in your park are made out of. it will work great as long as you use metal coping on the sides. rows of smaller 1/4-1/2 inch pvc lined up on a 2x10 piece of lumber works great and is cheaper. you can always use your desired box width and pvc diameter just know that the smaller pvc pipes tend to be more brittle and prone to cracks and chips. hope this helped, have fun on a dope new rail either way!