Steel Deck Accessories

When paired with steel deck, CSC’s selection of gage deck accessories can provide a complete steel deck installation.

Accessories are used in a variety of ways for steel deck installation including, but not limited to, forming slab edges, filling gaps in the deck layout, closing off deck ends, and transferring loads throughout the deck system. Whatever you require to get the job done, CSC has a variety of products that can be made to fit your project’s needs.

Unless otherwise specified, all gage deck accessories are provided with galvanized steel in 20, 18, 16, 14, 12, or 10 gage and in 10’ lengths.

View a limited selection of our steel deck accessories in our online store, or reach out to get a project quote today.

Get A Quote

POUR STOPS

A pour stop is a gage angle that often has a stiffener on top used to contain wet concrete at slab edge conditions at both the perimeter of a building as well as interior slab openings. It helps keep concrete from flowing off the deck and holds it in place at the desired depth, ensuring a clean edge of slab and proper slab thickness. This formed piece of steel has two bends of varying sizes and thicknesses based on the pour stop chart published by the Steel Deck Institute (SDI) for the associated slab depth and overhang distance. Notches or slots can be provided in the pour stop for projects that require special curtain wall attachment.

CELL CLOSURES

A cell closure is a metal angle with only one bend that is used to close off the ends of the deck flutes in order to prevent concrete from leaking through the ends. It is standard as 20 gage and is made for deck types from 1” high or greater. However, CSC offers varying widths and thicknesses based on project needs and the deck profile used on the project. Cell closures are also available by special order as 7” long pieces for individual flute coverage or cut in the shape of the deck profile for certain composite deck interior opening applications.

GIRDER FILLER / COMPOSITE FINISH STRIPS

Also known as composite finish strips, girder filler is a metal angle that has one non-symmetrical bend to engage the deck side lap. When there is a gap between metal deck and an adjacent parallel girder, girder filler is placed along the weak side of the metal deck to offer complete coverage. This ensures that when concrete is poured between the deck and framing, there is minimal spillage and the concrete slab stays in place while it cures. CSC offers varying widths and thicknesses based on project needs. Girder filler is traditionally welded in place, however, special girder filler with additional bend to accommodate mechanical fasteners is also available upon request.

FINISH STRIPS

A finish strip is used at the end of a run of roof deck to close a gap between the deck and parallel support condition. It is primarily used to ensure that there is consistent support for the roofing material being installed on top of the deck throughout the entire roof area. It can also be used to transfer diaphragm forces into the perimeter framing conditions. The standard sizes are 20 gage, which are made to close up to a 6” gap; however, custom thickness and size configurations are available upon request.

BUTT STRIPS

A butt strip is a metal plate that is a standard part at 20 gage thick and 6” wide. When roof or floor deck changes direction, it is used as a transitional piece to protect edges and create a flush transition. For roof applications, they are often used for shear continuity throughout the deck system. For non-standard applications, CSC offers various width and thickness options based on project specifications.

Z CLOSURES

A Z closure is a metal plate with two bends in opposite directions that create a “Z” shape. When deck changes elevation, Z closures are used to connect pieces of deck and protect the edges. For floor applications, they can also close off space and serve as a form to prevent concrete from spilling through gaps in elevation, keeping the concrete slab in place while it cures. CSC offers varying widths and thicknesses based on size needs for elevation change and deck profiles.

RIDGE AND VALLEY PLATES

A ridge plate or valley plate is placed at hips or valleys to connect sheets of roof deck together, creating a flush transition from one sheet to another while protecting the edges of the deck and in some cases transferring shear forces from one plane of the roof to the next. They are offered in whatever width and bend angle that are required for the specific project.

Screws

There are a variety of ways to attach steel deck to the deck supports as well as the side laps where parallel deck sheets meet. Screws are commonly used to attach deck to supports that are thinner in nature, such as light gage framing, steel joists, and some small steel beams. They are very commonly used at the side laps of most deck types to attach deck sheets together.

CSC carries a variety of screw types for different projects. Type 3 screws can be used for most light gage framing and Type 5 screws are typically used for steel joists or steel beams. For the side laps, both #10 Type 1 and #12 Type 3 screws are available depending on the gage of the deck and strength of attachment required. All screws are hex heads and are sold in quantities of 1,000. They do not include rubber washers, which are generally not recommended for deck. Other screw types are available as special orders.

SUMP PANS

Sump pans are often used in conjunction with roof deck when roof drains are being installed. Sump pans are 33” x 29”, typically 1 ½” deep, and made out of 14 gage steel. The pans are used to reinforce the opening in the deck where a drain is installed. Some roof drains come prebuilt with reinforcement, and in these cases, sump pans may not be required.

COLUMN CLOSURE

A column closure is used to fill in any gaps around a column to limit concrete leakage. This product is a solution for instances when wide flange beams are used for columns as it is often hard to cut the floor deck around their shape.

There are two types of column closures. The most common type is a steel mesh closure that can be easily cut with tin snips and formed to fill in gaps. This type is provided in bundles of 10 sheets that each measure 2’ x 8’ to fit a column that requires a 2’ x 2’ piece. Therefore, each bundle can normally accommodate 40 columns.

When specified, column closures can also be provided as a 20 gage flat plate. The size of the plate will vary depending on the column’s specifications. This type is more difficult to cut around the column due to their thickness, but they provide a solid surface to prevent concrete leakage.

RUBBER CLOSURE

Rubber closures are foam inserts that are cut to the shape of a deck profile. They are used to close voids that the deck’s corrugated shape creates. They are available for the top and bottom sides of roof decks and the bottom side of floor decks. The purpose of a rubber closure is to stop airflow, dust, or animals from entering the voids. They are not meant to stop concrete flow or prevent fire spread. Smaller inserts typically come in strips that are the width of the deck sheet. For larger inserts, there is one piece per void.

REVEAL HANGERS

One of the benefits of Reveal Series deck is its unique dovetail shape. Reveal hangers are wedge-type hangers that fit into the dovetail and are rotated to lock into the deck. Reveal hangers are sold as an assembly that includes the wedge nut, all-thread, washers, wing nut, and coupler nut. They are made specifically for the 2” and 3 ½” Reveal Series and are sold with all components provided they are UL tested and certified. The all-thread is either 3/8” or ½” diameter and approximately 4” long with a coupler nut on the end to receive the component that is being hung. These hangers can be adjusted or removed easily along the flutes of the deck without any physical damage to the deck sheets.

WELD WASHERS

When a project requires steel deck to be welded to the deck supports that are thinner than 22 gage, weld washers are recommended. Weld washers are 16 gage washers with holes that are placed on the deck prior to striking an arc. The arc is struck through the washer to keep the deck material from burning away and to allow the weld to puddle over the washer for securement. Weld washers should never be used for deck with a gage of 22 or thicker as the use of weld washers will limit the effectiveness of the weld. Weld washers are sold in quantities of 1,000.