According to whether the nosing to be used and methods of mounting to stringers, grating treads are classified into eight types, expressed as T1, T2, T3, T4, T5, T6, T7, T8. Belowing is the introduction of T1 type stair tread steel grating which is welded fixing without nosing.
and as escape staircases in different types of buildings. The staircases consist of stringers, treads and landings of grating as well as balustrades. The steel components are, as a rule, hot dip galvanized and supplied in separate parts for assembly on site. Our manufacture also comprises straight flight stair-
Figure 1: Stair Terminology The tread can be made from grating or from pans (both shown in Figure 1). Grating is typically used in industrial buildings while pans are usually used in commercial structures. The grating type of tread is plate, but the pan shape dips down so that the concrete can be poured into its base. Sanitary-type pans, which
Bearing Bars – Load carrying main elements made from steel, aluminum, or stainless steel, extending in the direction of the grating span. Bearing Bar Centers – The distance center-to-center of the bearing bars. Carriers – Flats or angles which are welded to the grating panel and nosing of a stair tread and are bolted to a stair stringer to support the tread.
• The Type of grating. Type 19-4 (Type 30-102 Metric) is Standard. • Bar Size • Grating surface – serrated or plain top • Finish – unpainted, shop primer, or hot dip galvanized • Style and quantity of fasteners, if required. Example: Nucor Grating Tru-Weld bar grating Type 19-4, 1 1/4 x 3/16 serrated, galvanized.
Bearing bar types. Steel grating is made up of bearing bar and cross bar as certain distance by welding or pressure bar have the types: flat type (also called plain type), serrated type, I bar type (I plain type and I serrated type).
Additional construction types consist of several Ladder Rung Plank styles, as well as Stair Tread Plank Grating options. An array of heights, widths, surface profiles, thicknesses, and more are all part of our complete line of Plank Grating Hole Products!
Stair Treads. Stair treads are most commonly done in the forge bar grating. We can however make them in twist lock in mild steel and aluminum. We can manufacture stair treads to any length and width to meet your specifications. Below is a table of guidelines for different grating types and their recommended span.
Stair treads come in 2 types, smooth and serrated. Smooth Surface Stair Treads Serrated Surface Stair Treads . Marco Can Provide the Right Bar Grating Stair Treads for Your Applications Custom Storage Tank Stair Treads. You can always count on Marco Specialty Steel to provide the best stair treads from metal grating products.
Stair tread steel grating with various types, nosing and connection types is widely used in the commercial and industrial applications. The most popular products and specifications. Technology. Metal Open Bar Grating Flooring and Stair Treads.
Bar Grating Stair Treads are available in carbon steel, aluminum or stainless steel. Stair treads in each of these metal grating types are available with plain and serrated surfaces. Our serrated stair treads are designed specifically to offer protection against slips in areas prone to oil or other hazardous elements.
Overview. McNICHOLS ® Grating Stair Treads are assembled with the very best quality and craftsmanship available. Stair Treads types include Expanded Metal Grating and Catwalk, Bar Grating, Plank Grating, and Fiberglass Grating. Most Stair Treads are stocked and ready to ship or can quickly be made-to-order from panels in inventory.
Plank, Stair Tread Plank and Extruded Stair Tread Plank. Select the channel depth for your Plank Grating Stair Tread surface profile selection. SERIES TYPE & NAME CARRIER PLATES Determine the series type and name (GRIP STRUT® Plank, TRACTION TREAD® Plank, etc.) of the Plank Grating Stair Tread for your project.
Algrip Slip-Resistant Grating & Stair Treads All Grating Pacific bar grating products are offered with the premium Algrip slip-resistant surface. Type "W" welded carbon steel or stainless steel, types "DT", "SL" and "SG" steel, aluminum or stainless steel products, all available with our full variety of finishes.
Steel grating will always be the proper choice for many project categories. Strength, long service life, ease of installation and relatively low cost make welded steel grating the most popular of all grating types.
Specification List Technical Reference About Our Steel Grating Products: Quick Tips for your purchasing help: I. Bearing Bar (Load Bar) can be two types: plain flat type and serrated type. So, please mention the bar type with your inquiry. Common bar size range(mm): 20 x 3 to 100 x 9. II.
Stair Tread, Steel Structure, Flooring manufacturer / supplier in China, offering Different Types of Galvanized Gratings for Stair Treads, Unbeatable Price Press Locked Steel Bar Grating for Platforms and Trench, Straight Shank Pneumatic Grinder and so on.
STAIR TREADS. Description: See Grating, Item 1 Size and Type: (Bar Grating) See Grating, Item 2 Surface: See Grating, Item 3 Size and Punch/Pattern: (Aluminum Plank Grating) See Grating, Item 4; Type "F"