Aluminum Formwork & Falsework Equipment

Your Advantage...


SCI's Aluminum Gang Forms offer major advances and complete adaptability, high strength-to-weight ratio, all at cost effective prices.

The SCI Aluminum Gang Form System works very much like the widely used all wood system, as far as general make-up. 3/4" (19 mm) thick plywood is the form face material. Our lightweight extruded aluminum joists replace heavy timber joist; and rugged lightweight Aluminum Strongbacks replace heavy timber walers.

Unlike wood, which is very inconsistent in quality and strength, our strong aluminum elements are always of high quality and will produce unequaled superior results.

Assembly is quick and easy. The SCI Aluminum Strongbacks are delivered to the jobsite fully assembled (except when exported). The Aluminum Joists are secured to the Strongbacks by means of an Aluminum Clip Assembly, which includes a 1/2" (12.7 mm) x 1-1/2" (38 mm) long T-head bolt and hex nut. The "T" feature enables the head of the bolt to be inserted into the bolt slot of the Aluminum Joist at any location along its length. The Aluminum Clip fits snugly around the special extruded shape of the Aluminum Strongback's flange, providing a secure positive connection. All accessory items such as Walkway Brackets, Lifting Brackets, Tie Plates, etc. are positioned and attached in minutes. Now turn the framework over with a small crane and apply the plywood face with the threaded nails or drywall screws of your choice.

Common manual or power driven socket wrenches is all that is needed for the hex nut of the 1/2" (12.7 mm) T-head bolts and the heads and hex nuts of the 3/4" (19 mm) A-325 accessory bolts.

The SCI Aluminum Gang Form is crane handled but not crane assembled. Every component....even the longest Aluminum Joist and Aluminum Strongbacks do not require crane handling during assembly.

Now assembled, you have a strong 1500 PSF (7,323.5 Kg/sq. m) gang forming system that weighs only 8-1/2 lbs/SF (41.5kg/sq. m). It provides an extremely flexible tie spacing - up to 6' x 8' (1.83m x 2.44m) and produces high quality concrete surfaces while providing excellent versatility to adapt to practically any type of wall forming condition, including most custom applications.

During form use, maintenance is minimal. Normal plywood treatment and application of your form release agent just about does it. We recommend, as a safety precaution, occasional inspection for bolts and nuts that may have loosened from handling.



The SCI Aluminum Gang Form System can be adapted to almost any forming requirement that calls for gang forming. The Structural Contours, Inc. expert staff has the capability to design and manufacture any custom component or accessory item that may be required to complete the formwork package. We welcome your inquires about special applications.

These massive turbine pedestal columns were formed using SCI Aluminum Joists, Strongbacks, and Outside Corner Brackets. Gang forms were then dismantled and the Aluminum Joists and Strongbacks were re-used to form the heavy concrete beams and slabs of the upper platform of the turbine pedestal.


The formwork drawings that SCI furnishes to the contractor eliminates all guesswork. We specify the order of assembly and erection including the location of the Aluminum Strongbacks and Aluminum Joists, the location and actual loading of the form ties, location of all accessories and advise you of the maximum allowable rate of concrete placement.

We include full information on re-use cycles, form tie and hardware selection, designing of bulkheads, etc. The formwork package is fully engineered right down to the SCI Shear Wall Brackets and Landing as to provide workmen with the security and safety that is an integral part of SCI's Aluminum Gang form system.




SCI Walkway Bracket, a custom design, accommodates three standard 2" x 10" (51mm x 254mm) scaffold planks or, preferably, two SCI Aluminum Joists secured by SCI Aluminum Clips. Walkway Brackets require two 3/4" (19mm) x 3-1/2" (89mm) A-325 bolts. The brackets may be located anywhere along the length of the Aluminum Strongbacks.

SCI Lifting Bracket, complete with 9,500 lbs (4,309 kg) safe working load shackle, ensures a plumb form while lifting and re-setting the gang forms. It is usually mounted within the web and flanges of the assembly Aluminum Strongbacks so that the Walkway Bracket may be set at the top, if desired. Each Lifting Bracket requires two 3/4" (19mm) x 4-1/2" (108 mm) A-325 bolts. It should be noted that if the Walkway Bracket is not used at the location of the Lifting Bracket, two 2" long (50.80mm) spacer sleeves should be utilized between the Strongback channel members.

SCI Shear Wall Bracket and Landing Bracket, provide maximum security for workmen engaged on the formwork in a multi-lift operation. The Shear Wall Bracket is anchored to a tie set in the pour below. The Landing Bracket is mounted within the Strongback channels and can be located anywhere throughout the length of the Strongbacks. It requires three 3/4" (19mm) x 3-1/2" (89mm) A-325 bolts. These two accessories greatly help to reduce crane time while forms are being cycled. It should be noted that a Walkway Bracket cannot be positioned on the Aluminum Strongback at the same location as the Landing Bracket.

SCI Tie Plates, are designed to accept virtually any type of form tie...she-bolts, taper ties, coil ties, etc. They are fastened securely to the Aluminum Strongbacks with two 1/2" (13 mm) J-bolts and hex nuts.

SCI Plumbing Jack, is used to plumb and align gang forms on multi-lift operations. It is mounted on the trailing end of the Aluminum Strongback. This heavy duty Plumbing Jack has plastic capped swivel type plate head to protect the concrete surface and will easily align even the largest gang form. It requires two 3/4" (19mm) x 3-1/2" (89mm) A-325 bolts.


Additional accessories to complete our formwork package include:

  • Aluminum Splice Assembly
  • Outside Corner Bracket with permanent continuous tie plate.
  • Wall Braces
  • Bulkhead Systems
  • Form Tie Systems
  • Custom Form Components
  • Lifting Beams
  • Fin-Ply Forming Plywood
  • Architectural Form Liner


Aluminum Formwork & Falsework Equipment for Heavy Construction, Commercial Construction, Institutional Construction, Environmental Construction & Highway/Civil Construction, Residential Construction: