this s a design i have drawn up for a customer. i am pricing this out for them. These are the specs 4250 block 4"x12"x8" and 4"x12"x16" H x L x D H x L x D There are three sets of stairs one set 9 foot run and 6 feet high 8 inch steps with 1' tread depth 9 stairs one set 3 foot run and 2 feet high 8 inch steps with 1' tread depth 3 stairs one set 6 foot run and 4 feet high 8 inch steps with 1' tread depth 6 stairs I will be making these as stairs not as landings one wall 110 foot long 4 feet high one wall 120 foot long 4 feet high one patio surround 25' by 15' by 1' high (i am not doing the patio stones as they are getting stamped concrete) one patio surround 12' by 20' by 2' high (same as first patio for the stones) I have to clear out the whole hill of debris and weeds. The hill will take 3 days to clean up and prep for wall trenches and patios still pricing the job for them. i have an idea of what i am charging but want to go over the numbers a few more times. So look at it and let me know what you guys think about the design and if you think anythings could be changed.