Inside Corners for Steel-Ply Concrete Form Systems Sandbaggy’s Steel Inside Corners are designed to create clean 90° inside corners for concrete wall formwork. Commonly used in formwork for foundation walls, retaining walls, columns, and other poured concrete structures, these reusable corners help connect adjoining form panels securely and efficiently. Built from heavy-duty steel for repeated jobsite use, these inside corners are compatible with Symons Steel-Ply, Ellis Pro-Form, EMI Elite, and similar modular concrete forming systems. Their pre-engineered design helps reduce setup time while maintaining accurate form alignment during concrete pours. Specs Face Dimension: 6" x 6" Height: 4 ft Weight: 30 lbs Material: Steel Connection Openings: 12" O.C. Compatibility Symons Steel-Ply Ellis Pro-Form EMI Elite Similar Steel-Ply Style Form Systems Features CREATES CLEAN 90° INSIDE WALL CORNERS — Integrated reinforcing straps help maintain consistent corner alignment during concrete pours. COMPATIBLE WITH MODULAR FORM SYSTEMS — Works with Symons Steel-Ply, Ellis Pro-Form, EMI Elite, and similar modular concrete forming systems. 12" O.C. CONNECTION OPENINGS — Designed with integrated slots and dado openings for common concrete form ties and connection hardware. BUILT FOR REPEATED JOBSITE USE — Heavy-duty steel construction is designed to be reused across multiple concrete pours and forming projects. FOR WALLS, FOUNDATIONS & STRUCTURAL POURS — Commonly used for foundation walls, retaining walls, columns, and commercial concrete projects. FAQ How do I install the Inside Corners? Position the inside corners where the adjoining form panels meet to create a 90° corner. Secure the corners using compatible concrete form ties and connection hardware. Ensure the forms are properly aligned and supported before pouring concrete. Are these inside corners reusable? Yes — these steel inside corners are designed for repeated jobsite use. With proper handling and maintenance, they can be reused across multiple concrete forming projects. Does Sandbaggy sell other concrete forming supplies? Yes — we carry a wide range of concrete forming products including snap ties, wedges, form stakes, spreader cleats, rebar accessories, and more. Here’s a video featuring some of our concrete formwork products:
