I HAVE SOME GOOD ADVICE FOR THOSE WISHING TO BUILD HALFPIPES THAT ARE 4 TO 5 TIMES STRONGER THAN YOUR RIB METHOD. THE METHOD EMPLOYS THE RIB METHOD BUT EXPANDS THE METHOD TO TAKE ADVANTAGE OF EVERY LITTLE BIT OF POWER. CUT OUT NOTCHES WHERE THE RIBS GO. THIS WILL ALLOW THE RIB TO DISTRIBUTE THE PRESSURE THROUGHT THE STRUCTURE. IN ADDITION, USE VERTICAL BRACES ON THE BOTTOM 3 FT OF TRANSITION, THIS WILL EXTEND THE LIFE OF THOSE RIBS BY THREE FOLD. LASTLY, USE PACK DIRT UNDER THE FLAT BOTTOM AND THE FIRST 2 FT OF TRANSITIONS. THAT TRICK WILL DEAD SOUND AND ALSO MAKE THE RAMP 5 TIMES STRONGER. IF THE RAMP IS TO BE A LIFELONG STRUCTURE, THEN REPLACE THE DIRT WITH CEMENT.

sorry for the short list of ramps or things for u to build i will be updating

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