For those of you who like getting big air, the box jump is what you should build. This box jump is also portable, since it can separate into three main parts; The launch ramp, the flat box, and the landing ramp. The ramp in these instructions is 4' high, 4' wide, with an 8' gap, but these dimensions can be easily changed to suit your needs.
| MATERIALS CUT LIST | ||
| --- Description --- | --- Dimensions --- | --- Quantity --- |
|---|---|---|
| 3/4" treated PLYWOOD | 4' x 8'(for middle) | 2 |
| 3/4" treated PLYWOOD | (used for curves) | 2 |
| 3/8" treated PLYWOOD | (for surfaces) | 4 (1 layer, 8 for 2 layers) |
| treated 2x4 | 3' 10 1/2" | 37 |
| screws | 3" deck screws | 150-170 |
| screws | 1 1/2" deck screws (for plywood) | 100-130 |
First off, you will need to get 2 sheets of 3/4" plywood to be used for the middle section (table) of the box jump. You will then start to screw 2x4's across as shown in the picture below. For this you will be using 3' 10 1/2" (for a 4' wide box), with two 3" screws in each end of each 2x4.
*Tip: If you want to make the box jump wider (up to 8' wide) then all you have to do is use longer 2x4's. For example, if you want a 6' wide box jump, use 5' 10 1/2" 2x4's.
Now it is time to build the launch ramp. This step is fairly easy, and has been explained in The kicker plans. The first thing you will need to do is cut out 2 curves of radius 6'. You can find out how to Draw curves here. Once you cut the curves, you can start framing. The 2x4's should be spaced a minimum of 8 inches apart in order to maximize strength and smoothness.
This is jsut what I was looking for. I think I'm going to make mine a little wide thorugh..
MAKE 2 AND STICK THEM TOGETHER SO IT WILL MACK IT BIGGER :)
how wide are these
They are 4 feet wide.
how do you measure the length.from top of ramp to top of other ramp or from bottom of ramp to other bottom of ramp?
Hey I'm making one of these but using both your kicker ramps at 2 feet tall and 2 feet wide, I'm just wondering how long to make it (the deck part)
@moleman123: I would suggest anything from 4' to 6'
nice ;)
does anyone know if the transition for the launch ramp work on an MTB?
can you make a mini box jump
You should do one Launch to Flat, miles better and easier to make :}
i am going to building one of these very soon and i am not shore if it is worth making two of them then putting them together to make it 8'? Please login(right side) or Register to leave a comment.