lets say im digging a trench 1 foot deep and 18 inches wide
or i need to know how much gravel to use at 4 inches for a 400 sq foot patio
i guess its .333 but were do i find the formula so that i can calculate inches in my head
I appologize if this is the dummest question.
i know once somebody tells me the formula i will remember it
what an awesome sight, its so nice to see people helping people