3D Printing technology is rapidly reshaping the construction industry as an innovative and sustainable building solution. Printing elements with structural and load bearing functions, using concrete material is among the considered solutions. The present study aims to demonstrate the ability of using 3D printed elements as fully structural. A comprehensive experimental program has been implemented to demonstrate this structural capability for 3D Printed element as the technology is presently outside construction codes. The program compares, in the same production and curing conditions, the mechanical behavior of cast in molds material, 3D printed material, and the associated l performance of structural elements at real scale. The material used was a one-component (1k) ink. Reliable correlations between material scales and large-scale elements can be established. However, a larger design safety margin than stated in the codes for conventionally cast concrete needs to be considered presently.