Raised Bed Extension In-Line Connectors, 8 Inch Set of 2 Review ChangeNightElf July 20, 2018 November 13, 2018 No Comments on Raised Bed Extension In-Line Connectors, 8 Inch Set of 2 Review For raised beds that won’t bow out at the sides, use 4-foot planks and anchor them with our reinforcing In-Line Connectors, which come in sets of two. Use with standard lumber. Made in Vermont by Gardener’s Supply.