I'm finally putting up a pen for the duckie. I read on the University of Florida website, to snake proof anything, that I should bury 1/4" hardware cloth, 6" into the ground at a 20 degree angle. Would making the whole bottom of the pen achieve the same result? I'm going to cover this with a shower pan liner and put rock that looks like mulch on top of that or I might do crushed shells because of the crushed oyster. The snakes I want to keep out, are mostly water moccasins and rat snakes.