Box top sheet and coping

fouldsys

fouldsys

Active member
my box has vertical supports(2x4s broad side up) every 2'4" and im going to put 1/2" ply wood over that. what do you suggest the thickness of the top sheet material should be? im getting either hdpe or uhmw. is 1/4" sufficient?

and i was planing on puting some pvc coping on the side. how high should the coping be in relation to the top sheet and how can i attach it to the side of my box? i thought of screwing the pvc into some 2x2s or something and then screwing the 2x2 to the box frame. would that work? heres a pic of what im thinking.

boxcrosssection.jpg
 
with that type of construction for the coping liquid nails should work good, and 1/4 inch will be fine on top of the plywood, but i would go with more supports then every 2' 4", like every 1' 6", And the coping should be just a little bit higher then the topsheet.
 
1/4" topsheet should be fine. a way i was thinking for the coping would be to cut the sides of the topsheet/plywood a little so it fits in there. the coping should be flush with or if you have to, a little below the topsheet, just sand the edges down a little. if you have 1/2" plywood and 1/4" topsheet id say get 5/8" pvc piping (im pretty sure the diameter is the inside of the hole, not the outside)

rains.jpg
 
i c. well the problem now is that im an idiot and didnt think of it becore but my box is 14' long and they do not make pvc in that length so im gonna have to use two tubes together but that makes it sketchy. so i donno what to do now
 
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