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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.
Read 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.
At 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.
When 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.
If 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.
Removing Stucco Siding
Learn how to cut through stucco siding to prepare a house wall to install a deck ledger board.
Ledger Board Fasteners
Compare lag bolts, carriage bolts and structural screws as deck ledger board fasteners. Take a look at our ledger board fastener spacing chart.
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!
Can You Paint or Stain Composite Decking?
Most composites don’t require painting or staining. However, if you are considering staining or painting your deck, you can learn how to do so and what you’ll need at Decks.com.
How to Remove Moss & Algae from Your Deck
Moss and algae growth can be detrimental to the integrity of your deck if left untreated.
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.
Read 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.
At 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.
When 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.
If 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.
Installing A Ledger Board Around A Corner
Follow our tips to properly install a deck ledger board around the corner of a house to keep water out.
Ledger Board Fasteners
Compare lag bolts, carriage bolts and structural screws as deck ledger board fasteners. Take a look at our ledger board fastener spacing chart.
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 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.
Deck Inspection: Checklist for Framing, Footings and More
Concerned that your deck no longer meets safety regulations? Want to know how to spot signs of trouble for your deck? Review our checklist for inspecting your deck at Decks.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