Smartcat - The Ultimate Scratching Post (16"L x 16"W x 32.5"H)Overview Why we love it: SmartCat has the best looking, most durable, post scratcher of the ones we researched and tested. At 32. 5 inches, it's tall enough for your cat to stretch out comfortably. Its solid wood base is sturdy, so it stays upright even during vigorous scratching or leaping, and its woven sisal scratching surface is a natural fiber that shreds cleanly (unlike carpet) and won't become prickly over time (unlike sisal rope, also common