Aluminum tread plate

Aluminum tread plates

Step Deck Introduction

Tread plates, also known as stair tread plates, steel stair tread plates, or step plates, are a type of stairboard used for platforms. They come in two installation methods: welded connections and bolted connections. Welded tread plates can be directly welded to the stair beam.

Step Plate Types

T1 Step Plate                                                                                         T2 Step Plate

T3 Step Platform                                                                                         T4 Step Platform

3. Step Board Supplemental Description Diagram

Step Platform Design

The front skid plate can be made of patterned steel, striped steel, or other anti-slip materials as per the buyer's requirements.

5. Step Plate Model Explanation

Material Type: G for Carbon Steel

BG for stainless steel

Bar Spacing: 100mm (Center to Center)

50mm (center distance)

Bar Size: Standard 6x6 Twisted Square Steel

Small-scale steel grating is made of 5x5 twisted square steel.

Stainless Steel Common φ5mm Round Bar

Flat Steel Dimensions: Standard sizes range from 20×3mm to 75×6mm and more.

Flange Spacing: Series 1 - 30mm (Center to Center)

Series 2 - 40mm (Center Distance)

Series 3 - 60mm (Center Distance)

Flat Steel Type: P for Plain Flat Type (may be abbreviated)

S for enhanced anti-slip tooth pattern

Surface Treatment: G for Hot-Dip Galvanized

U for surface untreated (can be abbreviated)

The T1G253/30/100PG specification and above utilizes 25×3 plain flat steel strips, with a strip spacing of 30mm and a crossbar spacing of 100mm, and is a hot-dipped galvanized T1`step plate.

6. Standard Tread Plate Dimensions and Description

(1) Standard stair widths are 700mm, 800mm, and 900mm; widths should not exceed 1200mm.

(2) For single-person staircases, the width between the two inclined beams or railings should be no less than 600mm.

(3) When stairs are frequently used by multiple people crossing over simultaneously or as an evacuation route for personnel, the width of the stairs should be increased to 1200mm.

(4) The step plates are made of steel grating, and the steel grating model can be selected according to Appendix E.

Step overhangs must withstand a load of 1.5KN, applied to a 100mm x 100mm area when the width is not more than 1200mm. For widths exceeding 1200mm, an additional load of 1.5KN is applied at every 600mm symmetrically. The deflection of the stair tread should not exceed 1/500 of the span.

Step treads and landing platforms should have good anti-slip properties.

(7) The vertical overlap of the adjacent upper and lower stair tread boards should be no less than 10mm.

(8) The connection between the tread and the stair is either welded or bolted, as shown in Figure A.1. When using bolts, the bolt size must not be smaller than M10.

(9) The size of the end plate with bolt connections for step boards, as well as the size of hole A, is shown in Figure A.2 and Table A.1.

Note:椭圆形孔（25×14）也可用于安装。

7. Production Process

8. Application Scenarios

Tread plates have a wide range of applications, including platforms and walkways in power plants, waterworks, and other factories, as well as in municipal and environmental protection engineering projects. They are also extensively used on ground platforms in large venues such as cinemas, visitor platforms, and parking lots.