At the end of the load-bearing flat steel, the flat steel of the same specification as the load-bearing flat steel is generally used for edging. It can also be used with steel or directly with skirting board, but the cross-sectional area of the edging plate should not be less than the cross-sectional area of the load-bearing flat steel.
According to the requirements of the buyer, it can be delivered without edging.
The edging adopts single-sided fillet welding with a welding height not less than the thickness of the load-bearing flat steel, and the weld length shall not be less than 4 times the thickness of the load-bearing flat steel.
When the edging board does not bear the load, it is allowed to weld one place with 4 load-bearing flat steels at intervals, but the spacing shall not be greater than 150mm.
When the edging board bears the load, interval welding is not allowed.
The edging board in the same direction as the load-bearing flat steel must be welded with each crossbar.
The cutouts and openings in the steel grating that exceed 180mm should be edged.
The end side plate of the stair tread should be fully welded on at least one side.
If there is an edge guard plate on the stair tread, it must run through the entire tread.
