Hi Robert, The required length is one foot for every inch of rise.
So, if the height you have to rise is 39 inches, then your ramp has to be 39 feet long. I would assume that you would cut that in half, and create a 20 foot ramp, then place a landing half way down, and turn the ramp 180 degrees to come down the other 19 or so feet. Alternatively, you could ramp it down for 13 feet, turn it around for another 13 feet, and finish it off at the final 13 feet. Just keep in mind that the landings have to be wide enough that the wheelchair will be able to manoeuvre freely without getting caught, and that, at least, one hand rail follow the entire length of the ramp, save for the landings, although this may be different for your building codes down there. In any case, here are a few options for you. Victor Co-moderator Blind Movie Buffs List Guidedogs List
