I need a step up ( ;
I need to make a 12-18 degree ramp to my patio/shed enterance. The area keeps washing away, due to pooling water from rain and the gutter drip line. - leaving a 3-4 step down/up - I have old thick pessure treated steps or concrete to work with. Wood would be easier for me - but I don't know if it will hold up -- also nned suggestions on what sustrate I need to put under the ramp.