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Laying Out the Deck Ledger Board
Before driving the structural screws to firmly attach the ledger, be sure to draw your joist locations onto the face of the ledger. The reason for laying out the joist locations is to prevent placing a joist on top of a structural bolt holding the ledger in place. In the case of a rectangular deck, you could lay out the joists on the ledger (on a set of sawhorses) before you install it. But if the deck will have a number of angles or is very long, it is easier if you lay out with the ledger installed on the house first.
SaveRead this article to determine your joist spacing. (In our example, joists are 16" on center to support 5/4 pressure-treated decking laid perpendicular to the joists.) Joists are usually installed “on center,” meaning the spacing number – usually, 16" or 12" – falls in the center of the joist’s thickness.
SaveAt the end of the ledger, the outside joist will butt into the face, rather than the end, of the ledger. Here, the ledger is marked for an outside joist that will be doubled. This double joist will require a double-concealed joist hanger. You cannot use a standard joist hanger at the end of a ledger, as it's cut flush with the edge of the ledger board. A standard joist hanger requires an extra 1.5" of space to nail to the ledger.
SaveWhen laying out after the ledger has been temporarily attached, measure and mark as described above. Use a framing square to measure and mark the joist centers along the ledger board.
SaveIf you plan on installing your railing posts on the inside of the deck frame, you will need to adjust the joist layout to allow space for the rail posts.
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.
Layout Of The Ledger
Learn how to plan ahead to avoid problems when installing your deck ledger board to the house wall.
Attaching the ledger board to hollow block
Our inspector discusses how to attach a deck to a hollow concrete block foundation wall.
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!
Preventing & Treating a Slippery Deck
Inclement weather can cause both wood and composite decks to become slippery and potentially unsafe. Learn how to prevent and treat a slippery outdoor deck at Decks.com.
How to Sand a Wood Deck
Sanding a deck is important to prevent any wood slivers and imperfections. Use these instructions to properly sand and refinish your deck.
More Helpful Resources
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
Create a free account and get instant & exclusive access to all that Decks.com has to offer:
|
1,000+ How-To articles |
|
80+ Free Deck Plans |
|
Deck Planning Calculators |
|
Free & Simple Deck Design Tool |
Laying Out the Deck Ledger Board
Before driving the structural screws to firmly attach the ledger, be sure to draw your joist locations onto the face of the ledger. The reason for laying out the joist locations is to prevent placing a joist on top of a structural bolt holding the ledger in place. In the case of a rectangular deck, you could lay out the joists on the ledger (on a set of sawhorses) before you install it. But if the deck will have a number of angles or is very long, it is easier if you lay out with the ledger installed on the house first.
SaveRead this article to determine your joist spacing. (In our example, joists are 16" on center to support 5/4 pressure-treated decking laid perpendicular to the joists.) Joists are usually installed “on center,” meaning the spacing number – usually, 16" or 12" – falls in the center of the joist’s thickness.
SaveAt the end of the ledger, the outside joist will butt into the face, rather than the end, of the ledger. Here, the ledger is marked for an outside joist that will be doubled. This double joist will require a double-concealed joist hanger. You cannot use a standard joist hanger at the end of a ledger, as it's cut flush with the edge of the ledger board. A standard joist hanger requires an extra 1.5" of space to nail to the ledger.
SaveWhen laying out after the ledger has been temporarily attached, measure and mark as described above. Use a framing square to measure and mark the joist centers along the ledger board.
SaveIf you plan on installing your railing posts on the inside of the deck frame, you will need to adjust the joist layout to allow space for the rail posts.
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.
Ledger to engineered floor joists
Explore your options for building a deck onto a house with engineered floor joists.
Attaching the Ledger Board to a Concrete Wall
Step-by-step instructions on how to install a ledger board to a concrete house foundation wall using expansion anchors.
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 Stain a Wood Deck
Staining your deck, porch or patio can help maintain the longevity of its appearance. Learn how to stain your deck with these easy to follow steps at Decks.com.
How to Fix Loose Deck Railing
Fixing a loose deck railing can be easy and it ensures that you and your family are safe. Learn more about why your railing might be loose and how to fix it.
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