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The most popular engineered, Symons manufactures reusable, factory-built concrete forming system in use today.

Steel-Ply is designed for maximum versatility. It can be used to form virtually any kind of concrete pedestal, culvert, haunch or stoop as well as straight, curved, battered or "Y" walls. Combining panel or filler sizes and using them vertically or horizontally can form practically any dimension.
The Steel-Ply system combines heavy duty steel rails and crossmembers with Symons special layup ½" HDO plywood for a 1000 pounds per square foot (psf) rating at a 2:1 safety factor. This load rating:
  • reduces tie requirements compared to typical job-built formwork
  • increases productivity

The Steel-Ply system consists of more than 80 standard panel and filler sizes . Wedge bolts connect panels, fillers and ties in one simple operation, making formwork erection and removal quick and easy.

You have the option of ordering your Steel-Ply concrete forms with Quick-Hook HandlesT. The 5,000 lb. capacity of the integral Quick Hook Handle gives workers convenient handholds and attachment points for safety belts. It meets the Occupational Safety and Health Administration (OSHA) requirements for personal fall protection (Subpart M).
  • Carpenters handle less weight when using Steel-Ply panels compared to other forming systems. This means less time erecting, stripping and moving from structure to structure.
  • No special tools are required, only an ordinary carpenter's hammer is necessary.
  • The same forms can be handset or gangformed, so there's no need to buy several different systems to handle your basic needs.
  • Steel-Ply reduces expensive job-built form fabrication because it comes in many standard panel and filler sizes (see next question for sizes).
  • Expensive job-built corners are eliminated with the use of 90° and 135° rigid inside and outside corners or hinged corners for other angles.
  • Labor in cleaning and coating forms is reduced with the high quality HDO plywood face compared to lower grade plywood used on other systems.
  • Optional attached hardware is available to speed panel connections. There's no misplaced or out-of-reach hardware during panel erection, and there's no gathering up loose hardware during stripping procedures to slow workers down.
  • Walers are used to align the forms only, and are not required as load gathering members that must have ties attached.
  • Most column dimensions can be easily formed with no external ties or additional fillers. In addition, a special neoprene chamfer strip eliminates repeated nailing of conventional wood chamfers after each form use.
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