Green Kerfing Treatment for Improving Softwood Lumber Drying: A Review

Maria Fernanda Laguarda Mallo, Omar Espinoza, Robert Erickson

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


Kerfing is a lumber-drying improvement technique that consists of cuts along both sides of boards, transversal to the longitudinal axis. The rationale behind this procedure is that, by cutting the fibers, the moisture loss through the end-grain is increased. The aim of this paper is to evaluate the effects of kerfing on drying time, warp occurrence, and bending properties, based on different experiments conducted during the last seven years. In most cases, kerfing reduced the drying time by half of that of the control samples. Results were inconclusive regarding reduction of warp. Regarding the bending strength of treated pieces, kerfing caused a minimum loss of moment of inertia in the piece, resulting in a slightly lower bending strength and higher stiffness.

Original languageEnglish (US)
Pages (from-to)606-613
Number of pages8
JournalDrying Technology
Issue number5
StatePublished - Apr 2014

Bibliographical note

Copyright 2014 Elsevier B.V., All rights reserved.


  • Bending strength
  • Drying
  • Kerfing
  • Warp

Fingerprint Dive into the research topics of 'Green Kerfing Treatment for Improving Softwood Lumber Drying: A Review'. Together they form a unique fingerprint.

Cite this