We bought aluminum fencing from greatfence.com. It's not cheap. We bought the "Style 9" fencing, 48" high in 6' panels for plus the posts, gate, lock, etc. Total with shipping was around $1600 to do 3 sides of the deck (the pool itself was high enough above ground level). That included 8 panels, so probably 18' on a side (3 panels each side) and 16' wide (2 panels plus gate).