Banner for LabNotes
From Lab Notes
Contact Information
Forest Products Laboratory
One Gifford Pinchot Drive
Madison, WI 53726-2398
Phone: (608) 231-9200
Fax: (608) 231-9592
Email

 

You are here: FPL Home  / Information Products & Services  / Publications

Requested Product

Title: Using modulus of elasticity as the sorting criterion in the manufacture of lodgepole pine laminated decking: a pilot study

Source: FPL Research Note 0392

Author(s)Ross, Robert; Hoyle, Robert J.

Publication Year: 2020  View PDF »

Category: Research Notes

Abstract: The research presented in this research note was conducted to examine the potential to use lodgepole pine boards in laminated roof decking. A sample of visually graded lodgepole pine boards was obtained and evaluated. Modulus of elasticity (MOE), moisture content, specific gravity, and visual grade of each specimen were determined. Three-ply laminates were then prepared from the sample boards. Four types of laminates were prepared, based on either the visual grade or MOE of the boards used. Because bending MOE and strength are important mechanical properties for wood products in roof deck applications, each laminate was then tested in flatwise bending, and its MOE and strength were calculated. Results showed that the MOE and strength of laminates were dependent on visual grade of the boards. More importantly, using MOE as the sorting criterion and strategically placing boards in a laminate based on MOE of the boards produced laminates with greater modulus and strength. These results indicate that lodgepole pine can be used in decking applications.

Keywords: Laminate; laminated decking; lodgepole pine boards; modulus of elasticity; strength

Publication Review Process: Informally Refereed (Peer-Reviewed)

File size: 504 kb(s)

Date posted: 03/12/2021

This publication is also viewable on Treesearch:  view
RITS Product ID: 10124
Current FPL Scientist associated with this product
Ross, Robert J.
Supervisory Research Gen. Engineer
  

Additional items that might interest you
View the video celebrating FPL's 100 years of public service in 2010, from the producers of the Greatest Good....view

Research Highlights from FPL....view

Termite Eradication: A search for the Holy Grail.... view

Moisture Management in Residential Construction Series videos...view

Wood Floor Systems in Residential Construction Series videos....view
- FPL's Mission and Strategic Plan -

FPL's mission is to identify and conduct innovative wood and fiber utilization research that contributes to conservation and productivity of the forest resource, thereby sustaining forests, the economy, and quality of life. ... ..more »

- FPL Research Emphasis Areas -
Advanced Composites

As an integral part of the FPL mission, we improve the long-term sustainability of our Nation's forests by creating valuable composite products from biobased materials ... ..more »


Advanced Structures

The FPL has been in the forefront of wood-frame housing research since 1910 and has long been recognized as a world leader in such housing-related areas as engineered wood ... ..more »


Forest Biorefinery

We all know the compelling reasons that the United States needs to reduce its dependence on fossil fuels. Historically, the greatest increases in energy demand have been for transportation fuels ... ..more »


Nanotechnology

A leader in wood products research for over a century, the FPL is positioning itself to become the lead Federal research facility for the application of nanotechnology in forest products ... more »


Woody Biomass Utilization

Forests in the United States contain a substantial amount of small-diameter, overstocked, and underutilized material.FPL research projects are exploring the potential of the small-diameter ... ..more »