HOW-TO GUIDES

How to Install a Deck Flush Beam vs. Drop Beam

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Learn the differences between installing a flush beam vs a drop beam when building your deck, and how to determine which option is best from your project. 

 

Disclaimer: Instructions provided by Trex® are based on the build specifications that Trex® demonstrated in the Trex® Academy video series and are not universal to all homeowners’ projects. A homeowner’s build may vary from Trex’s instructions based on the homeowner’s local municipality requirements, individual design preference and project specifications. For questions or assistance needed during your project, please reach out to howto@trex.com

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Step-by-Step Instructions
Chapter 01: What are the Differences Between a Flush Beam and a Drop Beam
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So you're ready to get started? Watch our how-to tutorial before you start your build.

Before you begin any DIY project, make sure to wear the appropriate personal safety equipment. Eye protection, ear protection, gloves, long pants, a long-sleeved shirt, and reinforced toe shoes are recommended. Always make sure that you have a first aid kit nearby. For any home project, be certain to follow local code and permitting requirements. 

 

What is a Flush Beam?

A flush beam will be installed with the top of the beam being flush with the top of the joists.  The joists are attached to the beam with joist hangers.  This style can be installed at the end of the deck or in the middle of the deck.

What is a Drop Beam?

A drop beam is installed under the joist.  This style can be installed at the end of the deck, slightly back from the end of the deck, and in the middle of the deck.



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