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[quote]QUOTE: Originally posted by Ken Mackay REX How do you check the grade?? [/quote] Good Morning Ken: I use a 24" plastic level from Lowes Home Improvement; 1) prop the level up level with the high end on the track, 2) measure the distance from the level to the track on the low end, 3) divide the height by 24, 4) multiply the answer by 100, 5) percent of grade. Say that when you get the leveling all done and the measurement is 1/2 inch, divide .5 by 24 and that equales .0208333. When multiplied by 100 it comes out to 2.083333, that means that for all practial discussion you have a 2% grade. You can use a 12" level just take step "3" and divide by 12 instead of 24. All measurements have to be in the same measurement IE: inches, feet, mm, or whatever. When I lay sub roadbed I use two pieces of cork roadbed under the down side of the level and it gives me pretty close to a 2 % grade. Have a blessed day and remember SANTA FE ALL THE WAY Bob
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