Patent ID: 7677535

Claim:
A railing, comprising: plural pickets and rails that are fixedly intersected with each other by means of plural connecting plates, wherein said connecting plates correspond in number to said rails and are respectively and transversely fixed at one side of said pickets by means of plural screws to keep said pickets connected to stand side by side, a horizontal wing formed to protrude sidewise from an intermediate portion of each of said connecting plates between every two said pickets and bored with a hole at its center; and each one of said rails provided with a long space defined by three walls in an inverted U-shape, an opening bored in a top side of each one of said rails for corresponding to each said picket passing through each one of said rails, one of said connecting plates hidden inside each one of said rails, a female-threaded tube extended downward from an inner wall of a top side each one of said rails for corresponding to said hole of each said wing of a respective one of said connecting plates so that a screw is inserted from under said hole of said wing to threadably engage with said female-threaded tube of one of said rails to keep each one of said rails fixed with said connecting plate, wherein each of said connecting plates is provided with a horizontal contact short wall formed at its top to contact with a vertical inner wall of a top side of each one of said rails.