Ferret Nation replacement bottom pans measure 34 1/2 X 22 1/2 and are available with 2.5" or 3" tall sides. Choose from a prime galvanized or stainless steel construction. Bass Equipment also offers urine guards that attach to the horizontal wire of the cage. These guards fit in behind the pans and extend the sides height another 3.5". This means you have an over side height of 6" to 6.5". These pans will fit models with the dimensions of 36" x 24" or 25". The guards come with C-rings to secure them to the cage. Add a pair of c-ring pliers for easy installation.