Winterberry Cart Doormat. MatMates Doormats pair beautifully with optional decorative tray (tray sold separately.) Door mat Size: 18" x 30". Click thumbnail image to see doormat without the tray. Tray features scrollwork border and metal corner embellishments, adding an upscale look for your home. Note: Doormat Tray sold separately. Doormat Tray Size: 24" x 36".