How to build a box and a rail

[ThunderousFilms]

http://www.facebook.com/photo.php?pid=415453&l=75cd0dcdd2&id=1315682163
I just finished mine and thanks a ton wouldn't of done it without the thread

 

[tilem]

How large each pvc pipe should be ?

 

[tilem]

Edit:If I want 2 pvc pipes on a 2x4.

 

[hanksy]

if the 2x4 you're putting the pvc on is so the 4 in part is on top (which i'm assuming) then use 2 2" pipes.

 

[tilem]

But on the picture of the rail at the top, each pvc pipe looks like 1" or 1 1/2" large.

 

[tilem]

The pvc pipe need to be ABS ?