Traditional King Post Roof Truss

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.

Traditional king post roof truss.

It is used in aircraft construction. In aeroplanes the king post supports the top cables and helps to support the weight of the plane s wings. Trusses are elements where its entire member takes either only compression or tension member are not in bending. The king post truss is also used for simple roof lines and short span bridges.

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. Simple to make and require a small amount of lumber king post trusses are ideal for small structures. The top two diagonal pieces that serve as rafters are known as the upper cords. The truss has four main parts.

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. A king post truss is a simple triangular gable truss with a center brace known as the king truss. It is often used in simple roof trusses such as in the shed porch and garage. The king post truss with struts is popular timeless very strong and an elegantly simple truss design.

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. What are king post trusses. The bottom horizontal which serves as ceiling and upper floor joist is known as the lower cord. King post roof trusses are the most cost effective truss and they look great when curved braces and webs are used.

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. They have one bottom chord two top chords a king post a vertical central member and optional webs that can be straight or curved. The king post truss is also called a latin truss. They are only good up to 16 as larger structures require a greater weight distribution.

King post an upright post in the centre of a roof truss extending from the tie beam to the apex of the truss. This truss is very adaptable with regard to desired span and roof pitch. In traditional timber framing a crown post looks similar to a king post but it is very different structurally.