I am building an outdoor kitchen using standard 8"x8"x16" concrete blocks on a concrete patio which slopes away from the house. The length of kitchen is 120" and the slope of the patio is about 3" over the 120". In order to have a level kitchen, I will need to a leveling agent of some sort. I believe a 3" mortar bed would be a bad idea. Should I build a form and pour concrete leveler? Is there any other methods you would recommend?
Some additional information regarding replys below... Thank you for the quick replies. I am also a do it yourselfer and have rarely worked with mortar or CMUs. I should have been more precise in describing my plans. I was planning to lay a mortar bed for only the first row. Thereafter, I was planning to use landscape adhesive between blocks. There will only be five rows. I also plan to add a concrete countertop on both sides of the grill which will add to the stability.