Cast-in Plates can save time and money when it comes to the installation of structural steel. Cast-in plates are typically recessed into the concrete slab or walls. This is particularly useful where floors are being tiled in areas such as balconies because regular bolted plates can be difficult to disguise without concealing them in brickwork or raising the finished floor level above the head of the bolts.
Cast-in plates can be made to almost any size out of flat plate. Cast-in plates can also be made from other steel sections just as angle or channel (PFC). The most common plate thicknesses for cast-in plates are 10-16mm, with lugs/hooks typically made from N12 deformed bar.
Cast-in lintels are also commonly referred to as shelf lintels. Cast-in lintels are normally fabricated by welding hooks (typically N12 deformed bar) to steel angle or t-bar lintels at centres that are normally at 300-450mm spacings. Cast-in lintels are used to carry brickwork around the edge of a concrete slab and common areas they are often required are around balconies or above garage door openings where a downturned concrete beam is being utilised.
Cast-in beams are similar in design to cast-in lintels and are made from universal beams (UB), universal columns (UC), or parallel flange channels (PFC). Cast-in universal beams or universal columns are often used underneath concrete slabs where support from internal walls is lacking. Cast-in PFCs are often used on the edge of concrete slabs for visual aesthetics in many instances, along balconies or landings this also means steel balustrading or columns can be welded directly to it instead of bolting them down or requiring separate cast-in plates.