Ledger Board Attachment to a Solid Concrete Foundation Wall
When attaching a ledger board to a masonry wall, you will want to first cut the ledger board to size and have two helpers hold it in place so you can drill two holes every 12” through the wood where your bolts will be installed. Mark these locations on the wall with a pencil. Now, you can drill the holes through the wall into the basement or crawl space using a hammer drill with a masonry bit. Then, just line up the board to the holes in the brick, and screw in the fasteners.
When attaching to solid masonry, you will have to install expansion anchors with a minimum diameter of ½” and set into the wall at least 2 ½”. Hollow concrete block can easily break when drilled and doesn’t leave adequate bearing support for anchors. If you are attaching to a hollow masonry wall, you can fill the cells with grout and use expansion anchors, or you'll need to install epoxy anchors in compliance with the manufacturer’s installation instructions to a minimum depth of 4 ¼”.
SaveLay out your bolt locations using a tape measure and construction pencil. Bolt patterns will vary depending on joist length. Bolts should be staggered between joists and located 2" from the top and bottom of the ledger board.
SaveTemporarily secure the ledger board to the correct location against the concrete wall using concrete screws or temporary supports. Use a wood bit to drill ½" pilot holes through the ledger board. Next, use a concrete bit to drill into the concrete wall.
SaveInstall two bolts at the end of each ledger board. Hammer the sleeve anchor through the ledger board into the concrete wall.
Apply a generous bead of silicone along the top the ledger against the house.
SaveProtect the opening by sealing with silicon caulking on both the inside and outside of the wall, or wherever necessary. Always consult your local building inspector before attempting to attach a ledger board to a masonry wall. In some cases, you may want to avoid the hassle and uncertainty of attaching to a masonry wall. Remember, you can always install frost footings and posts beside the house to support the deck without attaching to the house.
Attaching the Ledger Board to the House Rim
Learn how to properly install a waterproof ledger board using flashing and fasteners. Check out our step-by-step video and detail drawings.
Flashing the Ledger Board
You should flash your ledger before you install your decking. Over time, the house frame behind the deck will rot if it gets wet.
Attaching the Ledger Board to Brick Siding
Do you have brick siding? You should never attach to just the brick. This is very dangerous.
Pressure Washer Buying Guide
When it comes to cleaning your deck, it's important to choose the right pressure washer. Use this pressure washer buying guide from Decks.com to help with your decision!
How to Bug-Proof Your Deck & Floorboards
Prevent bug infestations below and above your deck using mesh, screens, and more. Learn how you can have a bug-free deck this summer with Decks.com.
How to Remove Scuffs and Scratches from Composite Decking
Removing scuffs and scratches can help make your composite deck look like new. Learn how to fix and prevent your composite deck from future scratches.
More Helpful Resources
Explore Articles by Topic
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what if my deck has no flashing
Our inspector discusses what you should do if you deck ledger board isn't properly flashed.
Attaching the Ledger Board to the House Rim
Learn how to properly install a waterproof ledger board using flashing and fasteners. Check out our step-by-step video and detail drawings.
Lateral Load Device
Learn about your options for providing lateral load support for your deck. We explain recent code changes affecting deck building.
How to Remove Scuffs and Scratches from Composite Decking
Removing scuffs and scratches can help make your composite deck look like new. Learn how to fix and prevent your composite deck from future scratches.
How To Fix Loose Deck Railing and Prevent Wobbly Banisters for Years
Learn how to fix a loose outdoor railing on your deck to avoid future damage.
How to Replace Deck Boards & Repair Your Deck
Deck boards can split, rot or come loose over time, but it’s easy to remove and replace deck boards without rebuilding the whole deck. Learn how from the experts at Deck.com.
Explore Articles by Topic
Footings
Information related to installing frost footings for decks
Framing
Learn structural framing methods
Decking
Learn about wood and composite decking materials
Stairs
An in-depth look at the complex issue of how to build stairs
Railings
How to install guardrails and handrails to meet IRC code
Features
An overview on water drainage, benches, planters and lights
Design
The basics of deck design
Planning
Learn about permits and working with contractors
Porches & Patios
Build a covered deck to enjoy all seasons
Ledger
Proper attachment techniques
Care
Maintain your deck to maintain your investment
Materials
An overview on water drainage, benches, planters and lights