4" Starter Kit

Work Smarter on Every Pour Built from heavy-duty steel for concrete professionals, FormExtenders eliminate cutting, reduce waste, and solve layout challenges on every job. Fits over standard 2x4 lumber. Stop Cutting Boards Clean connections without the saw. Simply layout your form boards and let Form Extender fill every gap and void. Transition to Flexible Forms Seamlessly connect straight boards to curved flex boards with flawlessly. Straighter Forms, cleaner edges. Form Around Obstacles Use the 18" Gap Form to work around sprinklers, posts, and pavers without removing them. Stop Wasting Lumber Use every inch of your boards and eliminate scrap pile costs. Set Forms in Seconds Slide on, secure, and ready to pour. Reusable & Durable Heavy-duty steel construction delivers job-after-job reliability and excellent ROI. Kit Includes 3 FormExtenders: (1) 6 in. Extender (1) 12 in. Extender (1) 18 in. Extender w/ GAP