Lay Out and Install Main Beams

What happens here

Carefully measure and mark the locations for the main support beams. Position the large wooden beams according to the deck design, ensuring they are level and properly spaced. These beams often rest on concrete piers or posts that extend below the frost line (not explicitly shown but implied for a deck of this scale). Workers are seen carrying and positioning long pieces of lumber, which appear to be treated dimensional timber suitable for outdoor use.

Goal: Begin the structural framing by laying out and securing the primary support beams for the deck. These beams will bear the weight of the deck joists and surface.