Introduction: DIY 3ft. Halfpipe
please comment if you dont have an account just make one it's awesome!
this is good to refer to.
Step 1: The Foundation
if your planning on using this on level cement you wont need to use this step.
for on the grass select a somewhat level aria of ground.
plot out a rectangle that is 8 ft wide 20 ft long.
level it all out make some footers out of bricks the bricks should in the ground so the half pipe will also rest on the ground but the bricks help it a ton.
It's very important that it will be level when it's done. and stay level for a long time.
Step 2: The Transitions
follow the pictures and the notes on the pictures. :) and happy building.
Step 3: Finish the Transitions.
for an eight foot half pipe you need to cut every board 3 ft 11 inches!!
pic 1 in all you need to make 4 of these!
pic 2 do this to each frame
3 you'll end up with 2 of thees.
Step 4: Flooring
you build the final large piece in this step.
you can build this part as long as you want but it sa to be 8 ft from side to side.
mine is 4 ft.long ,yours can be 6 or so but I wouldn't go over that.
the cross beams have to be 7ft 9in.
Step 5: Construct
arrange your built stuff like this and ,put a 3 inch screw every red dot alternating in directions.
they might be hard to get in you might want to take off the closest beam to get your drill in there.
Step 6: Surfacing
the surfacing.
you will need 6 sheets of 1/4 inch ply wood.
and 1 sheet of 1/2 inch ply wood if you are using the 4 ft. flooring witch I think you people with small pocket books should use.
Step 7: Copeing
the coping is the grind rails that go in the notches I told you to cut.
Some people use big bolts that will go all the way through the wood and then use nuts and washers to hold them in place. ***recommended***
big wood screws would also work. *Works*
Step 8: Platform Gaurd Rail.
coming soon.... just look at my quarter pipe instructable it has a nice one but it would be wiser to fully enclose it.
38 Comments
Question 4 years ago on Introduction
What type of wood and how much is each I need a supply list
Question 4 years ago on Step 3
Is the half pipe 8ft wide or long
Question 4 years ago
What are the measurements for these pictures
Question 4 years ago on Step 2
What are the measurements for these pictures? Cheers
6 years ago
What thickness ply are you using to cutt the transitions from
7 years ago
Approximately how much did this cost you?
8 years ago on Introduction
hi just wondering can i leave this out in the winter is it waterproof?
8 years ago on Introduction
how do u cerve the flooring?
12 years ago on Step 5
about how much did this cost in all?
12 years ago on Introduction
I (with the help of my uncle) built a 4ft quarter pipe that was so sturdy that you could probably drive a car over it, and it would be fine. I was think of building a half pipe in my woods, but was also thinking of adding in things like stairs and grind rails to build a mini skate park. Any suggestions on how to go about this sort of thing?
Reply 12 years ago on Introduction
Sure! first draw out what you want, then get google sketchup and start making some plans :D you'll have to play with google sketchup for a but before you get it. but it will work great.
12 years ago on Introduction
how much did this cost you?
12 years ago on Introduction
yo so i got a question. how many 2x4's will i need for this if im making it 4 feet wide. also when i put the 2x4's on the plywood how do i screw it on? into the edge of the ply? and lastly what size screws work best 2 or 3 inch
Reply 12 years ago on Introduction
2 or 3 inch will be fine might go with both and use the 2inch for the surfacing and the 3 inch for the frame. when you screw the 2x4's in you just go right through the ply wood. if you wanna spend some money on metal hangers be my guest. I'm sure they help.
well if 2x4s are 8 ft long you'll need 15, 16 just to be safe.
13 years ago on Introduction
How do u bend the wood
-M
Reply 13 years ago on Introduction
It's only a 1/4 inch thick so it's easy to bend just put your weight on it and screw it on a screw at a time.
Reply 13 years ago on Introduction
cool thx.
-M
14 years ago on Introduction
I'm planning on making one, but i live in a place where its super humid and it rains so so much and its really hot. do i have to do anything on the surface? cause in the other tute, the website with the video in it, it says to use skatelite, which costs a BOMB. is there any other alternative? cause i live on the other side of the planet and wood does not come cheap. so i wanna make sure it doesn't get wrecked easily. the tute awesome by the way!
Reply 13 years ago on Introduction
hmm.. well I don't know for sure. but if you put tar paper under and over the first layer of the surfacing it will prevent a lot of water from getting in. then if you weather strip the wood and paint it it will help a lot.
Sorry for the late reply.
14 years ago on Introduction
can u use a bmx bike on this