Need Help Building 3' Cement Halfpipe Skateboard Ramp - Masonry - Contractor Talk

Need Help Building 3' Cement Halfpipe Skateboard Ramp

 
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Old 02-21-2009, 02:01 PM   #1
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Need Help Building 3' Cement Halfpipe Skateboard Ramp


Got the ok from the wife that I can build a halfpipe in the back yard (inside the wooded area). Already got the area cleared out.
I want to build a 3' high halfpipe. I want it 12' wide and 20' long (that's with 2 1/2' decks).
I know how to build the flat. But have no idea how to curve the transitions.
I want steel pipe sections for the "grind" rail at top of transition.

How would I mud the curves?

I got to get this done before she finds out I will die on this thing and shuts down operation.
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Old 02-21-2009, 02:06 PM   #2
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Re: Need Help Building 3' Cement Halfpipe Skateboard Ramp


Plywood forms braced to helll abd back and a ubber dry pour. just have your grind rail pre cut, i'd weld some sort of j bolt of bolts on the back side so the mud grabs hold of it so it cant be ripped out.

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Old 02-21-2009, 02:13 PM   #3
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Re: Need Help Building 3' Cement Halfpipe Skateboard Ramp


http://www.rickdahlen.com/hpplans/plans.html

http://www.rickdahlen.com/hpplans/Halfpipe.pdf

http://www.rickdahlen.com/hpplans/6ftpipe.pdf


http://www.xtremeskater.com/projects/Bobby.html






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Old 02-21-2009, 02:22 PM   #4
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Re: Need Help Building 3' Cement Halfpipe Skateboard Ramp


I was thinking cinder block stacks with rebar on top of footing to create 3' high x 2 1/2' long x 12' wide section on both ends of level slab (for the flat). Then use chicken wire for the curve.

Could this work?

mickey, those plans would be great if this was a wood ramp. But I want it to survive rain and ice.
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Last edited by MattCoops; 02-21-2009 at 02:25 PM.
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Old 02-21-2009, 02:30 PM   #5
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Re: Need Help Building 3' Cement Halfpipe Skateboard Ramp


No cement. Marine plywood.
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Old 02-21-2009, 02:35 PM   #6
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Re: Need Help Building 3' Cement Halfpipe Skateboard Ramp


I'd like to do it in cement. It's less maintanence when done.
The wife is starting to say wood. So if she wants me to take it down there is no jack-hammering.
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Old 02-21-2009, 02:46 PM   #7
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Re: Need Help Building 3' Cement Halfpipe Skateboard Ramp


I built a grind box out of wood that was half rotted from a shower demo we did a couple weeks ago. Just cut off the rot and mickey-moused it.
The top is 3/4" OSB with primed luan over it. I took an old piece of angle iron and countersunk holes for attaching.
I'll have to upload it to YouTube
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Old 02-21-2009, 02:51 PM   #8
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Re: Need Help Building 3' Cement Halfpipe Skateboard Ramp


Quote:
Originally Posted by MattCoops View Post
I'd like to do it in cement. It's less maintanence when done.
The wife is starting to say wood. So if she wants me to take it down there is no jack-hammering.
Plywood is much more forgiving when it meets the face, elbows, palms, knees, hip-bones and Occipital Bones.

It ONLY makes sense!!!!
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Old 02-21-2009, 05:39 PM   #9
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Re: Need Help Building 3' Cement Halfpipe Skateboard Ramp


I have to agree with MALCO - except the top layer is masonite

Try this link & go bigger

http://skateboardpark.com/rampplans/...ramp_plans.htm
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Old 02-21-2009, 05:49 PM   #10
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Re: Need Help Building 3' Cement Halfpipe Skateboard Ramp


Masonite is perfect! As long as the Grind Rails are Metal.
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Old 02-21-2009, 06:16 PM   #11
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Re: Need Help Building 3' Cement Halfpipe Skateboard Ramp


Hey, dig in the ground and have the Gunite guys show up.

If the wife yelps too loud fill it with water and call it a day
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Old 02-21-2009, 06:20 PM   #12
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Re: Need Help Building 3' Cement Halfpipe Skateboard Ramp


I had a half pipe in my drive way many years ago.
Actually it was two quarter pipes seperated by the drive way. they were built by me and my friends several years before I got paid to pick up a hammer. No masonite just three pieces of plywood. All day long you would here bump, bump bump......bump bump bump. Needless to say nobody got air.
We stole all the lumber and nails from a houses under construction. For the deck we used what I later learned were plywood forms. We had no idea why they were so slippery.
I remember this old Italian guy driving into my driveway yelling at us because we stole his forms.
Hope this helped.
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Old 02-21-2009, 06:22 PM   #13
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Re: Need Help Building 3' Cement Halfpipe Skateboard Ramp


Quote:
Originally Posted by Chris Johnson View Post
Hey, dig in the ground and have the Gunite guys show up.

If the wife yelps too loud fill it with water and call it a day

Dual purpose "Hole-in-da-Ground".

Smart!!!
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Old 02-21-2009, 06:22 PM   #14
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Re: Need Help Building 3' Cement Halfpipe Skateboard Ramp


Quote:
Originally Posted by MALCO.New.York View Post
Masonite is perfect! As long as the Grind Rails are Metal.
We nailed PVC for the coping.
Boy we were such A$$ holes.
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Old 02-21-2009, 06:24 PM   #15
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Re: Need Help Building 3' Cement Halfpipe Skateboard Ramp


i built the exact same size one when i was fourteen, four foot walls though, put it on wheels so we could move it to cut the grass.... it lasted 4 years in my yard , tarped in winter and i sold it for 800 to a local kid, who still used it he redecked it recently

one time my dad put it on a trailer and towed it down the road for canada day parade with me and my friends riding it ,
the good old days!
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Old 02-21-2009, 09:42 PM   #16
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Re: Need Help Building 3' Cement Halfpipe Skateboard Ramp


There's a local skate park here in Charlotte but the moms look at me like I'm a child molester.
Skateboarding helps relieve some of the stresses at work. If I fall down and go boom sometimes it only makes me smile bigger. As long as the "digger" don't break any bones all is well.
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Old 06-08-2013, 04:38 PM   #17
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Re: Need Help Building 3' Cement Halfpipe Skateboard Ramp


Do a true half pipe and use wood - make it large...we had major fun on this one...
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Old 06-08-2013, 05:32 PM   #18
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Re: Need Help Building 3' Cement Halfpipe Skateboard Ramp


wow, superseal went digging
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Old 06-08-2013, 08:03 PM   #19
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Re: Need Help Building 3' Cement Halfpipe Skateboard Ramp


Like those socks Dom
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Old 06-09-2013, 07:22 PM   #20
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Re: Need Help Building 3' Cement Halfpipe Skateboard Ramp


I have to agree with concrete not being forgiving.... I have plates and screws on both bones in my right arm to attest for this....

I would use skatelite.... Best stuff out there, it is very pricey though.. It looks like masonite, but not as slippery, and is built to withstand the elements.

http://skatelite.com/product/index.html

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