Fox Blocks's flat wall iForm™ is the perfect blend of high performance and versatility. Available in four widths—9", 11", 13" and 15"— iForm gives you exactly what you need to get the job done, and we have the most dependable product delivery in the business. Plus, iForm's universal design makes it so easy to work with. It's the perfect ICF for everything from a ranch home to a high-rise office building.
Simple stacking. iForm is universal and reversible, so there is no top or bottom, no inside or outside. Corner forms work as either left or right. They go together simply and easily. Even cut pieces can be used to minimize waste.
Straight walls. Our patented uniform design with 6" tie spacing allows concrete to flow easily within the form with minimal damming effects to eliminate deflection between ties and the block making it easy to build straight and square walls.
Strong ties. Fox Blocks's iForm features eight full-length ties, placed 6 inches on center and with 2 ½ inches of foam on each side. What does that mean to you? Unrivaled strength during and after concrete pours.
Fast installation. Placing horizontal rebar is fast with the loose-fit two-deep design, and eliminates the need for rebar ties. You can also snap in overlapping ends of two pieces of horizontal rebar at once.
Easy finishing. Choose any finish you like, inside and out. The 2 ½-inch foam gives you ample room for placing electrical wiring and plumbing with a router or hot knife. And our 1 ¼-inch furring strips are recessed half an inch, six inches on center, allowing for easy attachment of drywall and exterior finishes.
  • Anti-compression pads. Prevent compression of forms when placing concrete.
  • Corner fastening strip. Add strength to your corners, and make it easy to attach the finish of your choice.
  • Stronger fastening strips. This is yet another way we make walls stronger.
  • Multiple rebar positioning. Choose between inside, middle and outside rebar positioning. Plus, you can stagger or alternate rebar positioning on different courses.
  • Interlocking teeth. The open one-inch tooth design reduces the collection of dirt, debris and ice. Plus, it reduces cupping.
  • Snap & go rebar. Our loose fit snap-in rebar design lets you overlap ends or two pieces of horizontal rebar at once.
  • Minimal bracing. iForm requires less bracing than other systems during stacking, on corners and around door and window openings.
  • Ease and flexibility. Can be specified for even the most complicated floor plan and performs well around window, door and other openings, requiring very little gluing or taping.
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