Deck Substructure Framing
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What happens here
The deck substructure framing begins with attaching a ledger board directly to the house foundation. This board must be perfectly level and properly flashed to prevent water intrusion. Main support beams, also known as girders, are then installed on top of the previously set foundation posts. These beams are secured using appropriate metal connectors and fasteners, forming the primary horizontal support for the deck surface.
Goal: Construct the main structural frame of the deck.
Tools and materials
- Chalk Line — Marking straight lines for ledger board placement
- Circular Saw — Cutting lumber to length
- Impact Driver — Driving structural screws and bolts
- Level — Ensuring ledger board and beams are perfectly level
- Measuring Tape — Accurate measurements
- Ledger Flashing — Preventing water intrusion behind the ledger board
- Structural Screws/Bolts — Attaching the ledger board to the house and beams to posts
- Treated Lumber — Ledger board and main support beams (e.g., 2x10, 2x12)