Ferret Nation replacement bottom pans measure 34 1/2 X 22 1/2 and have 3" tall sides. Choose from a prime galvanized or stainless steel construction. Bass Equipment also offers urine guards that attach to the side wire of the cage. These guards fit in behind the pans and extend the side height another 3.5". This means you have a side height of 6" to 6.5". The guards come with hardware to secure them to the cage. The FP-UG and FP-UG-SS come as a 5 piece set; one long piece for the back, 2 pieces for the sides and 2 pieces for the door. These pans will fit models with the dimensions of 36" x 24" or 25". Please note galvanized metal will eventually rust, stainless steel will not.