Install Assembled Stair Treads

What happens here

With all the L-shaped stair tread sections fully assembled, carefully carry them to the deck stair frame. Begin installing the treads from the top step downwards or from the bottom step upwards, depending on the design and ease of access. Position each assembled tread section onto the corresponding stair stringers, ensuring it is level and flush. While not explicitly shown, it is implied that these treads are fastened to the stringers using additional screws, possibly through the previously drilled pocket holes on the underside, or surface-mounted screws that will be covered later.

Goal: Securely attach the completed stair treads to the deck stair frame