Traditional King Post Roof Truss

Whereas the king post is in tension usually supporting the tie beam as a truss the crown post is supported by the tie beam and is in compression.

Traditional king post roof truss.

In a nutshell it s made up of a central vertical post called the king post two rafters meeting at the apex and a tie beam or the horizontal base. In traditional timber framing a crown post looks similar to a king post but it is very different structurally. The bottom horizontal which serves as ceiling and upper floor joist is known as the lower cord. The top two diagonal pieces that serve as rafters are known as the upper cords.

The king post truss consists following components. The king post truss is also used for simple roof lines and short span bridges. The king post truss with struts is popular timeless very strong and an elegantly simple truss design. A king post truss is a simple triangular gable truss with a center brace known as the king truss.

They have one bottom chord two top chords a king post a vertical central member and optional webs that can be straight or curved. This truss is very adaptable with regard to desired span and roof pitch. It is used in aircraft construction. It is often used in simple roof trusses such as in the shed porch and garage.

A king post truss utilizes two top chords a bottom chord and a piece that connects the bottom and top chords vertically called a king post. The truss has four main parts. What are king post trusses. Trusses are elements where its entire member takes either only compression or tension member are not in bending.

The king post roof truss is the simplest of the trusses because of its simple composition. The king post truss is also called a latin truss. The crown post rises to a crown plate immediately below and supporting collar beams it does not rise to the apex like a king post. In aeroplanes the king post supports the top cables and helps to support the weight of the plane s wings.

This style can be embellished with radius cuts on the struts and a through tenon at the base of the king post as pictured above. Simple to make and require a small amount of lumber king post trusses are ideal for small structures. Tie beam two inclined principal rafter two struts king post.