When installing a new deck, securely attaching the structure to your home is a critical step for ensuring stability and safety. While a ledger board is a common attachment method, one technique for connecting the ends of the deck's rim joists directly to the house utilizes metal L-brackets.
This method focuses on directly fastening the terminal ends of the deck frame's side rim joists to the house's exterior wall, specifically into the sheathing, using structural connectors.
Using L-Brackets for Attachment
Utilizing L-brackets provides a robust point of attachment between the deck frame and the existing house structure. This approach requires precise measurement and secure fastening for reliable results.
Step-by-Step Process
Here are the key steps for securing the rim joists using this method, as described in the reference:
- Prepare the Brackets: Fasten metal L-brackets securely to the end of the rim joists. Use appropriate structural hanger screws designed for this purpose.
- Position the Frame: Carefully set the deck frame so the ends of the rim joists, now equipped with the L-brackets, are positioned directly against the sheathing of the house wall.
- Secure to House: With the rim joists held in place against the sheathing, screw the attached L-brackets into the house's sheathing. Ensure connections are firm.
Addressing Gaps with Spacers (If Needed)
Sometimes, the deck frame may not sit perfectly flush against the house, or you might need to maintain a specific air gap between the deck frame and the wall.
- If necessary, you can create simple spacers to adjust the fit.
- Attach pieces of standard decking material to the top side of the deck frame member that rests along the house wall. These spacers help ensure proper fit and alignment, accommodating any irregularities or desired spacing.
Following these steps helps ensure the side rim joists of your new deck frame are securely attached to your house using the L-bracket method.
