So you have a great idea for a new product or service. Congratulations! You’ve taken a major step, but you’re still a long way from getting it out into the world—and even further from doing so ...

Then, determine the preliminary access ramp length. A gentle 1:20 slope (1 in. of rise requires 20 in. of run length) is best for ease of use but requires a longer, more expensive ramp. If your yard ...