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Prepare Stair Stringers

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What happens here

Begin by preparing each stair stringer for installation. The video shows attaching a small, rectangular piece of treated lumber (likely a kicker or ledger block) to the bottom rear edge of a stair stringer. This block will provide a larger surface area for attaching the stringer to a ground-level ledger board, or act as a spacer/leveling point. Use a cordless impact driver to securely fasten this block with several exterior-grade wood screws. Ensure the block is flush with the bottom cut of the stringer.

Goal: Attach support blocks to stringers

Tools and materials

  • Cordless Impact Driver Makita — Driving screws quickly and efficiently
  • Stair Stringer — The main structural component of the stairs, cut to specific rise and run dimensions
  • Treated Lumber Block — A small piece of wood attached to the bottom of the stringer for support and attachment to the ledger board
  • Exterior-Grade Wood Screws — Securing the treated lumber block to the stringer