Built from heavy-duty galvanized steel for concrete professionals, FormExtenders fit over 2x4 lumber. They eliminate cutting, reduce waste, and solve layout challenges on every job. Product highlights:
No more cutting boards:Simply lay out your form boards and let Form Extender fill every gap, giving clean connections without a saw
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Work good
I basically bought the kit for the 5ftr. Perfect for leaving an opening for our buggy and when we're done slap it in. Haven't had a chance to use the smaller ones yet but the one was great
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William · September 8, 2026
Love the form extenders!!!! They work great and saves on time and lumber. Great product!!!