Trusses are not used in the basement or throughout the interior of the home ... ways to identify a load-bearing beam. Start in the basement and look for a steel I-beam or a multi-board wood ...

A framework of diagonally intersecting steel beams, it will allow for an open interior with no columns to block sightlines.

Pre-stressed concrete is an ideal material for beam bridge construction; the concrete withstands the forces of compression well and the steel rods imbedded within resist the forces of tension.