UPDATED VERSION 2.0
I made this Geometry Nodes tools to increase my workflow when I build stage with truss. This version is an upgrade based on users comments and review.

FULLY PROCEDURAL
You can design you’re your truss structure saving time and memory. This tool use instances to save memory consumption and rendering time.

TRUSS LENGHT (METERS/IMPERIAL)
When you build your shape a text gives you the total length of your truss. This function can be disabled. The text is not visible in rendering.

EASY TO USE
You can simply grab or extrude points in edit mode to achieve your shapes. You can use standard tool to subdivide edges and fill vertex. Is a single vertex workflow.
See the video tutorial to learn how to use it.

NEW SNAP FUNCTION
No more gaps between elements with SNAP.

STYLE
You can change COLOR and ROUGHNESS to made you custom truss.

Thank you if you support me in the develop of other geometry nodes tool.