How To Build A Raised Bed in a Metal Trough. We could do this and put the trough on large casters. That way we could roll the raised bed in and out of the garage when it's still a little too chilly for the plants to be out all night long. We would also be able to roll them into the barn or a shed for winter storage.
Get more food from better soil with less water with raised beds. Landscape designer Linda Chisari shares her design (and materials list), along with advice on sizing and adding a convenient irrigation system.