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How to Use a Triple Deck Beam to 6x6 Post Connection

Triple beams for decks (3-2x's) should be supported with 6x6 posts using a post beam connector bracket.  4x4 posts will not provide adequate bearing for a triple beam.   Do not notch the top of the post and through bolt the beam because the width of the triple beam will limit the notched section of the post down to 1".  This does not provide enough strength to hold the beam in place.  A positive connection using a post beam bracket installed on top of the post and nailed to the side of the beam is the most secure connection.

Triple Deck Beam to Post Connection
Triple Deck Beam to Post Connection

Here is an example of how to mount a 3-2x10 beam over a 6x6 support post to support a shed style porch roof.


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You may need to build a freestanding deck if you can't attach a ledger board to the house. Learn how to build a self-supporting deck.

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Dos & Don'ts for Homeowners to Consider When Building a Deck

Your dream deck can take whatever shape you like. The trick is making it fit your budget and site conditions. While the deck doesn’t have to be built as a rectangle, there could be good reasons for doing just that.

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More Helpful Resources

Explore Articles by Topic

Create a free account and get instant & exclusive access to all that Decks.com has to offer:

Checkmark 1,000+ How-To articles
Checkmark 80+ Free Deck Plans
Checkmark Deck Planning Calculators
Checkmark Free & Simple Deck Design Tool
Deck Support Beams

How to Use a Triple Deck Beam to 6x6 Post Connection

Triple beams for decks (3-2x's) should be supported with 6x6 posts using a post beam connector bracket.  4x4 posts will not provide adequate bearing for a triple beam.   Do not notch the top of the post and through bolt the beam because the width of the triple beam will limit the notched section of the post down to 1".  This does not provide enough strength to hold the beam in place.  A positive connection using a post beam bracket installed on top of the post and nailed to the side of the beam is the most secure connection.

Triple Deck Beam to Post Connection
Triple Deck Beam to Post Connection

Here is an example of how to mount a 3-2x10 beam over a 6x6 support post to support a shed style porch roof.


Popular Framing Articles
Deck Support Columns

How to Decorate Deck Support Columns

Browse some examples of decorative deck support posts for tall decks.

Deck Framing

How to Angle Corners and Joists

Learn how to frame a deck with angled or clipped 45-degree corners using a cantilever beam.

Deck Framing

How to Build a Freestanding Deck

You may need to build a freestanding deck if you can't attach a ledger board to the house. Learn how to build a self-supporting deck.

Next Step: Decking Articles
Decking Installation

Decking Patterns

Installing your decking at a 45-degree angle is a popular style for decks. This can be done to reduce decking seams or just for appearance.

Decking Installation

Dos & Don'ts for Homeowners to Consider When Building a Deck

Your dream deck can take whatever shape you like. The trick is making it fit your budget and site conditions. While the deck doesn’t have to be built as a rectangle, there could be good reasons for doing just that.

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Picture Frame Decking

Install a picture frame or perimeter board to finish the edge of your deck with style.

Get more helpful resources delivered right to your inbox

Explore Articles by Topic

More Helpful Resources