Richell Expandable Pet Crate Crate expands from 35.4" to 60.6" wide (adjustable to 11 different widths) Recommended for dogs 8.8 to 44 lbs. (4-20kg) Includes Expandable Floor Tray. Medium: front door is 12.2 x 22.3 H inches Sliding wire door provides easy pet access Life 'n Lock side door provides access to food/water, doggy pads or training tray