I have 100 aluminum frames manufactured by Metro Signs. These units expand to 10' x 3' triangles and fold down for space saving storage and transport. They can be connected together.
These retail at $70/linear foot.
Entire lot, $9,500. Individual units, $200/each.
Length: 10’ sections
Width: from 3’
Weight: 4 lbs. per linear foot
Configurations: Vertical, horizontal, & three-sided pyramid
Retracted dimension: 4” x 4” x 4” by length
Easy lock-together, quick-snap extruded connectors
Accepts baseplates in upright position
https://www.1-metro.com/TF-60