King post
（重定向自King truss）
![Crown posts in the nave roof at Old Romney church, Kent, England](/Images/godic/202501/22/Old_Romney_Church_roof2450.JPG")
![A so-called](/Images/godic/202501/22/A_Photograph_of_the_Norman_Roof_Truss_in_the_Attic_of_the_Bolduc_House_in_Ste_Genevieve_MO2450.png")
![A diagram of the parts of a king post truss](/Images/godic/202501/22/King_post_truss.svg2451.png")
![A king post truss bridge](/Images/godic/202501/22/King_post_truss2451.jpg")
A king post (or king-post or kingpost) is a central vertical post used in architectural or bridge designs, working in tension to support a beam below from a truss apex above (whereas a crown post visually similar, supports items above from the beam below).