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The Outsider-Pressure Treated Beams and Columns (Penta)

OUTSIDER – the finest pressure-treated glulam beams and columns engineered for building outdoors

The Outsider beams and columns are made of Southern Yellow Pine and then pressure treated to resist rot and decay. Manufactured to match standard framing widths and depths make the Outsider ideal for decks, trellises, porches and balconies.

The OUTSIDER is treated with Penta.

The Outsider is treated with Penta, which contains solubized pentachlorophenol. Penta provides resistance to insects, decay, mold, mildew and bacterial growths. Pressure treatment of The Outsider is clean, nonswelling, non-leaching and non-corrosive.


Beams are manufactured to a performance level of 24F/1.8E with a balanced layup, straight with no designated top or bottom, for easy installation. And of course, The Outsider is sized to match standard framing widths and depths. They may also be used in both “wet-use” and “dry-use” applications.

Beams Are Available in Common Sizes:

  • Widths: 3-1/2” , 5-1/4”, 5-7/16” and 5-1/2”
  • Depths: 9-1/4”, 9-1/2”, 11-1/4”, 11-7/8”, 14”, 16” and 18”


Columns are manufactured to a combination #50/1.9E lay up and are ideal anywhere a post is needed for your application. Columns placed on a pier block are considered to be in a “dry-use” application, provided it never reached 16% or greater moisture content. The attached Table 1 should be used for these values. However, columns that have direct ground contact or are imbedded constitute a “wet-use” application and Table 2 applies.

Columns Are Available in Common Sizes:

  • Widths: 3-1/2”, 5-7/16”, 5-1/2” and 7”
  • Depths: 3-1/2”, 5-1/2” and 7”

Recommended Applications

The Outsider is the best engineered wood beam for building outdoors. Wet conditions are no problem. Moisture and decay-resistance helps protect the areas around hardware connections; however, field fabrication and trimming, hole drilling, and minor surface damage should be re-sealed with Penta (available at your local building supply store). Outsider beams and columns should not be used in marine applications such as docks, marinas and standing water conditions.

What are “Wet-use” and “Dry-use”?

Glulam products are often intermittently exposed to the elements. This is typically followed by drying. Even though the beam or column is exposed to the elements, it could be considered to be in a “dry-use” condition provided it never reached 16% or greater moisture content. In this situation, Table 1 capacity charts may be used.

An application is considered “wet-use” if at anytime the moisture content reaches 16% or greater (see the chart below). These conditions necessitate the use of the Table 2 capacity chart. Due to The Outsider’s exceptional strength and quality, use of “wet-use” tables (Table 2) is the most beneficial for more conservative design assurance.

Copyright 2017
Boozer Laminated Beam Company, Inc.

Copyright 2017
Boozer Laminated Beam Company, Inc.