How to Construct a Mini Ramp

	This ramp has been designed to be cut out of whole sheets of ply wood with out extra cutting or waste. A sheet of ply wood is typically 2.4m long by 1.2m wide. You will need a space of about 4 meters wide by about 9 meters long for this ramp. The ground will have to be made as level and flat as possible. These construction details have been over simplified some what. Some working out for yourself will be required at connection points like at the flat base and the copeing to ensure correct surface heights aligning up etc.
	I used 200X38 bearers leveled out and laid flat. I spaced them out at about 1.2m apart in key load bearing positions as shown in the second picture. The detail top left shows 3 thin layers of surface material on the transitions. 2 sheets of 7mm ply and one surface sheet of 11mm WeatherTex This makes it easy to bend the sheets onto the radius. The copeing protrudes 5 to 7mm from the riding surface. The bottom diagram shows how you can cut two transition pieces from one sheet. The notches are spaced a little closer in the high impact spot of the ramp.
	I also managed to cut a 100mm wide strip to screw to the external transition to support the timber joists. The internal ones were notched out. Showing basic framework together. 100x45mm flat bottom joists All pieces were painted prior to assembly to help with weather protection.
	We found cheap paint from the paint shop that had paints that had been mixed up wrong for customers. Transition close up showing notched internal transition pieces. 75mmX38mm joists in position Notice 200X48mm bearers on flat leveled into the ground.
	Pic showing 2 layers of 7mm ply sheets screwed down to transition and base sheets of 18mm ply. We screwed a straight plank across the top of the sheets to use as a guide for the power saw when we had worked out the height to cut the ply sheets to match the copeing height.
	We used 100x100 treated pine for the handrail posts. 100X45mm frame work for the decking with 18mm ply on top. The top surface was of 11mm WeatherTex laid in a 45 degrees angle. This helps to stop the ends chipping up as well as making it a fast and bump free ride. Smooth as!
	Lights were added to party all night

Cutting and materials list.

11 sheets of 1.2m X 3.6m 11mm WeatherTex Surface sheets.

4 sheets of 1.2m X 2.4m 15/18mm Ply. Transition profiles..

6 sheets of 1.2m X 2.4m 18mm Ply. Platform and flat base.

12 sheets of 1.2m X 2.4m 7mm Ply. Transition surface.

36 lengths of 75mm X 38mm X 3.6m timber. Transition joists. Important to get as straight as you can.

7 lengths of 100mm X 45mm X 2.4m timber. Flat base frame.

3 lengths of 100mm X 45mm X 3.6m timber. Flat base frame.

4 lengths of 100mm X 45mm X 3.6m timber. Decking frame

8 lengths of 100mm X 45mm 1.2m timber. Decking frame.

2 lengths of 100mm X 38mm X 3.6m timber. Handrails

6 lengths of 100mm X 100mm X 2.1m timber. Posts handrails.

2 lengths of 48mm int Dia X 3.6m Galvanised pipe. Copeing

6 X 100mm X 8mm gal bolts. Weld to copeing to fix in position.

Bags and bags of screws, 35mm and 45mm.

Decide on what you are going to sit the entire structure on to keep it up off the ground to stop the timber from rotting prematurely. I used 200X38mm bearers on the flat, you could use bricks or Besser blocks.

To vary the size of this ramp, remember to make the flat a little longer for a bigger/higher ramp and the transitions/radius a little bigger. If you want to make it smaller reduce the length of the flat bottom and reduce the radius of the transitions to make it a little 'tighter' You need some angle on the top of the transitions to 'Push' off to get speed.

A small 600mm high ramp with 2.4m radius transition would be too 'Flat' and you would not be able to 'push' on it to get any speed. So finding the correct ratios with height/radius/flat is crucial to your ramp 'working'.

A full vert ramp would typically have a min of a full 3m radius/transition with 300mm of vert at the top with a flat base of at least 3m.

Hope we have helped you out here. Skate hard.