LilGiantsConstrCo

[steamer]

Joe the formula is rise divided by the length of run x 100 to give you the percentage. Don't know what your looking at but say your rise to the floor was six feet and the length of your of the tunnel was 20 feet from the basement wall it would still be a 30 degree rise in that distance starting the ramp in the house. I think your best bet would be to build a dumb waiter at the shop end with one of the cheap Princess auto hoists.