A good mini ramp is something that almost every skateboarder, BMXer, etc. wishes they had in their back yard. Well now you can build one on your own with these instructions. The dimensions for this ramp are: 4' high, 16' wide, 4' deck, 7'9" curve radius.
| MATERIALS CUT LIST | ||
| --- Description --- | --- Dimensions --- | --- Quantity --- |
|---|---|---|
| 3/4" treated PLYWOOD | 4' x 8' (used for sides) | 4 |
| 3/8" treated PLYWOOD | 4' x 8' | 30 |
| 1/4" hardboard | 4' x 8' (for top layer) | 16 |
| treated 2x4 | 7' 10 1/2" | 56 |
| treated 2x4 | 7' 9" | 24 |
| treated 2x4 | 7' 7 1/2" | 20 |
| treated 2x4 | 3' 11 1/4" | 16 |
| treated 2x4 | ~6' (for cross braces) | 16 |
| treated 2x6 | 8' | 4 |
| treated 4x4 | 8' | 8 |
| Deck screws (for studs) | 3" deck screws | 1000-1300 |
| Deck screws | 1 1/2" | 4500 approx. |
This particular ramp has a curve radius of 7'9" but this can be changed slightly depending on your preference (keep in mind that if you change the curve radius, you will have to alter other dimensions slightly). You can see our helpful page, Smooth Transitions page for instructions on how to plan out and cut a smooth curve. You will need to make 8 of these curves, so that means you will need 4 full sheets of 3/4" plywood since you can get 2 curves out of one sheet.
*Tip: Save the scraps so you can use them to build a small extension or box for your mini ramp.
For this ramp, you will be needing 4 identical 8' wide sections so it will be much faster if you construct them at the same time. The first 2x4's you should attach are the ones that will be holding the coping, and the very bottom one. These 2x4's should be 7' 10 1/2" and each 2x4 should have 2 3" screws holding in each end. (The layout of the top 2x4's can be seen more closely in the second picture.
This part is very simple. Just remember that the spacing of the 2x4's should be 8" in order to achieve maximum strength. Next, just attach the two deck supports (3/4 screws in each).
To frame the deck, you will need to use 7' 7 1/2" 2x4's spaced 8" apart. You will need to put 2 screws in each end of each 2x4.
A person riding on a mini ramp can create a lot of force. This force will make the ramps want to disconnect from the flat bottom. This is why it is important make sure you attach the flat bottom the strongest way possible. It isn't necessary to use lag bolts, but it is recommended. You can purchase 3/8" lag bolts from any hardware store for really cheap (you will need 2 washers and 1 nut per bolt).
Using Bolts: To attach the bolts, just drill a hole through where you want to place the bolt (the size of the hole should be slightly larger than the size of the bolt), and then slide the bolt through, making sure you have a washer on either side, and tighten the nut with a wrench. You should only need approx 1 bolt every 3 to 4 feet.
Using Screws: You can also attach the flat bottom using screws [This method is not as strong as using lag bolts so it is not highly recommended]. You should be using ~3" deck screws for this and placing one screw ever foot. You can also apply screws from both sides for more strength.
sweet im starting this ramp today!
@Sk8master53: Nice! You should take lots of pictures and send them in! :)
I love this site. How could I make this an 8 ft instead of a 4 ft ramp
nevermind I see the six foot version, my bad
@skaterdad: Ah, ya! Glad you found that. If you have any questions don't hesitate to ask!
~Gregory
whats the height, length and width of this ramp, and thanks for all the plans! :)
it's approx 30'x16'x4'
do you have halfpipe plans that arent as long as 30 feet??
or do you know where i can find some
Well it really depends what you're looking for. If you made the decks on this ramp shorter it would take off a lot of length. Your only other option would be to build a shorter ramp (example 3 feet high instead of 4 feet).
what would i have to take off the supply list to make it shorter? Please login(right side) or Register to leave a comment.