Diy File Cabinet Planter . With everyone going digital, filing cabinets are no longer a. See more ideas about file cabinet planter, planters, outdoor gardens. Upcycled Metal Planters Made to Order File planter from www.pinterest.com I set out to find a used heavy duty file cabinet and found one at a yard sale for $5! So we poked around for other options and found several people had the same idea. If you’re like me, you love crisp, bold modern design, but can’t afford the steep price tag.