The proper way to field-cut ICF corner forms on site is to mark the blocks on both sides along the wall angle, cut the blocks along the marks, then properly secure the miter joint.
Using ICF corner blocks to form 45- and 90-degree wall corners is a no-brainer. But if you’ve got any unusual corners, you may be wondering how to field cut ICFs without creating unnecessary waste. Well, don’t despair — cutting ICF corner forms on site is really simple. And below, we’ll walk you through the nine steps needed to perform this procedure on your site.