This was the first grindrail I made.  Originally it didn't have the PVC pipe on the top and was just wood.  I learned ta do a boardslide on tha wood, but when i tried ta do a grind instead of a slide, the wood would get dented and i'd fall, so i added tha PVC pipe and drilled holes and added nails.  If your tryin ta build this rail, make sure you drill holes first before nailing the  pipe down cause the pipe can crack. (i learned this the hard way!!!)  Oh ya!  DON'T put too many nails on the pipe cause it makes for a really bumpy grind if u do.  If  your stumped on how i built this, all i did was make both halves first, then i nailed tha halves together.                     -PeAcE