2 panels
-- 2 panels options: 18 x 36 in 2 panels of 9 x 36 18 x 38 in 2 panels of 9 x 38 20 x 40 in 2 panels of 10 x 40 20 x 42 in 2 panels of 10 x 42

3 panels
-- 3 panels options:

4 panels
-- 4 panels options: