No. Do not put you ladder feet on concrete. Always try to put the ladder on soil if at all possible. Make sure it is not leaning-- shim the footing platform is you have to.

I want three runs above the edge. I have the last step 4-5 inches below the gutter and tie it of with a bungie to the gutter spike.

Not tie-ing off the ladder at a spike and placing the base of the ladder on concerete or pavers is asking for a ride in the ambulance followed by someone waiting on you hand and foot for a bout a month(minimum).

RR

__________________
"If con is the opposite of pro, is Congress the opposite of progress?"
Richard Rushing, HCRI
Duncanville, Tx.