Dr. Robert Falk
Research Engineer
Engineered Properties & Structures
Email: rhfalk@fs.fed.us or rfalk@wisc.edu

Dr. Falk is a Research Engineer in the Engineered Properties and Structures Research Work Unit. His research focuses on the development of value-added products from wood waste materials. This work includes the development of reuse options for salvaged lumber and timber as well as the development of composites from waste natural fibers and waste thermoplastics. In addition to developing a basic understanding of the engineering properties of these materials, Dr. Falk is active in helping develop the engineering property and engineering design standards necessary to facilitate their widespread use in construction applications.

Dr. Falk has participated in many technical committees, including the American Society for Testing and Materials, the American Society of Civil Engineers (ASCE), American Institute of Timber Construction, and the International Council for Building Research Studies and Documentation. He is a registered professional engineer in California and Wisconsin holds a BS degree in Civil Engineering from California Polytechnic State University, an MS degree in Civil Engineering from Michigan Technological University, and a Ph.D. degree in Structural Engineering from Washington State University.

PUBLICATIONS

Building Deconstruction, Lumber Salvage, Wood Recycling

• Engineering Properties of Reclaimed Douglas-fir Lumber Part 1: Lumber Strength and Stiffness, Falk, R.H., Maul, D.G., Cramer, S.M., 2008, In Review, ASCE Journal of Structural Engineering.

• Laser Induced Breakdown Spectroscopy (LIBS) for Quantification of Metals of Preservative in CCA Treated Lumber, Gething, B., Janowiak, J.J., Falk, R.H., 2008, In Press, Forest Products Journal.

• Engineering Properties of Douglas-fir Lumber Reclaimed from Deconstructed Buildings, Falk, R.H., Maul, D.G., Cramer, S.M., Evans, J., V. Herian; 2008, FPL Research Paper 650, July. http://www.fpl.fs.fed.us/documnts/fplrp/fpl_rp650.pdf

• Feasibility of Producing Value-Added Wood Products from Reclaimed Hemlock Lumber, Janowiak, J.J., Falk, R.H., J.D. Kimmel, 2007, FPL Research Paper 645, October, 13 pg. http://www.fpl.fs.fed.us/documnts/fplrp/fpl_rp645.pdf

• Unbuilding: Salvaging the Architectural Treasures of Unwanted Houses, Falk, Bob and Brad Guy, 2007, A Fine Homebuilding Book, Taunton Press, March, 256pp, ISBN-10: 1561588253, ISBN-13: 978-1561588251. http://store.taunton.com/onlinestore/item/070872.html

• Quantification of Metals in Preservatively-Treated Lumber using Laser Induced Breakdown Spectroscopy (LIBS), Gething, B., Janowiak, J.J., Falk, R.H., 2006, Proceedings of ECOWOOD 2006– 2nd International Conference on Environmentally-Compatible Forest Products, Orporto, Portugal, September 20-22. http://www.fpl.fs.fed.us/documnts/pdf2006/fpl_2006_gething001.pdf

• Investigation of Mechanical Processes for the Removal of Lead-Based Paint (LBP) From Wood Siding, Falk, R.H., Janowiak, J.J., Lampo, R.G., Napier, T.R., Cosper, S., Drodz, S., Larson, S., Smith, E., 2006, U.S. Army Corps Report ERDC/CERL 06-30, Construction Engineering Research Laboratory, September, 132 pg. http://owww.cecer.army.mil/techreports/Lampo_fpl/lampo_fpl.pdf

• Regulatory and Policy Issues Affecting the Reuse and Remanufacture Of Wood Materials Coated With Lead-Based Paint (LBP), Napier, T.R., Falk, R.H. Guy, G.B., Drodz, S., 2005 , FPL General Technical Report 164, USDA Forest Products Laboratory, December, 6 pp. http://www.fpl.fs.fed.us/documnts/fplgtr/fpl_gtr164.pdf

• Feasibility of Using Building Deconstruction at Wisconsin’s Badger Army Ammunition Plant: Salvaging Lumber for Reuse in Low-Income Home Construction, Falk, R.H., 2005, Forest Products Laboratory General Technical Report FPL-GTR-161, November, 35 pp. http://www.fpl.fs.fed.us/documnts/fplgtr/fpl_gtr161.pdf
• Remilling of Salvaged Wood Siding Coated With Lead-Based Paint: Part 1 - Lead Exposure, Falk, R.H., Janowiak, J.J., Cosper, S., Drodz, S., 2005, 55(7/8):76-80, Forest Products Journal. http://www.fpl.fs.fed.us/documnts/pdf2005/fpl_2005_falk001.pdf
• Remilling of Salvaged Wood Siding Coated With Lead-Based Paint: Part 2 – Wood Product Yield, Janowiak, J.J., Falk, R.H., Beakler, B.W., Lampo, R., T. Napier, 2005, 55(7/8):81-86, Forest Products Journal. http://www.fpl.fs.fed.us/documnts/pdf2005/fpl_2005_janowiak001.pdf
• Directory of Wood-Framed Building Deconstruction and Reused Wood Building Materials Companies, Falk, R.H.; Guy, G.B., 2005, General Technical Report 150, USDA Forest Products Laboratory, November, 95pp. http://www.fpl.fs.fed.us/documnts/fplgtr/fpl_gtr150.pdf
• Recovering Wood for Reuse and Recycling: A United States Perspective, Falk, R.H., D.B. McKeever, 2004, Keynote Paper, 1 st European Conference on the Management of Recovered Wood (COST Action E31), April 22-24, Thessaloniki, Greece. http://www.fpl.fs.fed.us/documnts/pdf2004/fpl_2004_falk001.pdf
• Effect of Drilled Holes on the Bending Strength of Large Dimension Douglas-fir Lumber, Falk, R. H., DeVisser, D., Plume G.R., K.J. Fridley, 2003 , Forest Products Journal, 53(5):55-60, May. http://www.fpl.fs.fed.us/documnts/pdf2003/falk03a.pdf
• Wood-Framed Building Deconstruction: A Source of Lumber for Construction? Falk, R.H., 2002, Feature Article, Forest Products Journal, 53(3):8-15, March. http://www.fpl.fs.fed.us/documnts/pdf2002/falk02a.pdf
• Effect of Heart Checks on Flexural Properties of Reclaimed 6 by 8 Douglas-Fir Timbers, Green, D.W., Falk, R.H., S.F. Lantz, 2001, Forest Products Journal, 51(7/8):82-88, July/August. http://www.fpl.fs.fed.us/documnts/pdf2001/green01a.pdf
• Failure Modeling of Sawn Lumber with a Fastener Hole, Williams, J. Fridley, K., Cofer, W., and R.H. Falk, 2000, Finite Elements in Analysis and Design, 36(1):83-98. http://www.fpl.fs.fed.us/documnts/pdf2000/willi00e.pdf
• Engineering Evaluation of 55 Year Old Timber Columns Recycled From an Industrial Military Building, Falk, R. H., Green, D. W., Rammer, D., Lantz, S. F., 2000, 50(4):71-76, April, Forest Products Journal. http://www.fpl.fs.fed.us/documnts/pdf2000/falk00a.pdf
• The Properties of Lumber and Timber Recycled from Deconstructed Buildings, Falk, R. H., 1999, Proceedings of the Pacific Timber Engineering Conference, March 15-20, Rotoura , New Zealand. http://www.fpl.fs.fed.us/documnts/pdf1999/falk99b.pdf
• Stress Grading of Recycled Lumber and Timber, Falk, R. H., Green, D. W., 1999, Proceedings of the 1999 ASCE Structures Congress, April 18-21, New Orleans, LA., pp. 650-653. http://www.fpl.fs.fed.us/documnts/pdf1999/falk99d.pdf
• Knock On Wood: Real Recycling Opportunities Are Opening Up, Horne-Brine, P. and R. H. Falk, 1999, Resource Recycling, August, pp. 42-46. http://www.fpl.fs.fed.us/documnts/pdf1999/horne99a.pdf
• Effect of Damage on the Grade Yield of Recycled Lumber, Falk, R. H., DeVisser, D., Cook, S., D. Stansbury, 1999, Forest Products Journal, 49(7/8):70-79, August. http://www.fpl.fs.fed.us/documnts/pdf1999/falk99c.pdf
• Evaluation of Lumber Recycled from an Industrial Military Building, Falk, R.H., Green, D. W., Lantz, S. F., 1999, Forest Products Journal, 49(5): 49-55, May. http://www.fpl.fs.fed.us/documnts/pdf1999/falk99a.pdf
• Wood Recycling: Opportunities for the Wood-Waste Resource, Falk, R. H., 1997, Feature Article, Forest Products Journal, 47(6): 17-22, June. http://www.fpl.fs.fed.us/documnts/pdf1997/falk97a.pdf
• Use of Recycled Wood and Paper in Building Applications, Falk, R. H., 1996, Editor, Forest Products Society Conference Proceedings, September 9 -11, 1996, Madison, Wisconsin, 222 pg. Available from the Forest Products Society at http://www.forestprod.org/mycart/index.php?productID=70
• Feasibility of Recycling Timber from Military Industrial Buildings, Lantz, S. F. and R. H. Falk, (1996), Proceedings of the Use of Recycled Wood and Paper in Building Applications Conference, Forest Products Society, September 9-11, Madison, Wisconsin. http://www.fpl.fs.fed.us/documnts/pdf1997/lantz97a.pdf
• Products from Recycled Fibers - A U.S. Perspective, Hamilton, T. E., Alig, J. T, R. H. Falk, 1995, Proceedings of the IUFRO XX World Congress, August 6-12, Tampere, Finland. http://www.fpl.fs.fed.us/documnts/pdf1995/hamil95a.pdf
• Recycled Lumber and Timber, Falk, R. H., Green, D., Lantz, S. F., M. R. Fix, 1995, Proceedings of the 1995 ASCE Structures Congress XIII, Vol. 1, pp. 1065-1068, Boston, Massachusetts. http://www.fpl.fs.fed.us/documnts/pdf1995/falk95c.pdf
• Housing Products from Recycled Wood, Falk, R. H., 1994, Proceedings of the First International Conference on Sustainable Construction, November 6-9, Tampa , Florida. http://www.fpl.fs.fed.us/documnts/pdf1994/falk94c.pdf
• Building Products from Recycled Wood Waste, Falk, R. H., 1994, Proceedings of the 1994 Pacific Timber Engineering Conference, July 11-15, Gold Coast, Australia. http://www.fpl.fs.fed.us/documnts/pdf1994/falk94a.pdf
• Building Products from Recycled Wood Waste, Falk, R.H., 1994, Proceedings of the Energy Efficient Building Association Conference, February, Dallas, Texas. http://www.fpl.fs.fed.us/documnts/pdf1993/falk93a.pdf

Fiber Plastic Composites for Housing

• Effect of Cellulose Fiber Reinforcement on the Temperature Dependent Mechanical Performance of Nylon 6 , Tajvidi, M., Mokhtar, F., Falk, R.H., C. Felton, 2008, In Press, Journal of Reinforced Plastics and Composites. http://jrp.sagepub.com/cgi/content/abstract/0731684408093875v1

• Effect of Natural Fibers on Thermal and Mechanical Properties of Natural Fiber Polypropylene Composites Studied by Dynamic Mechanical Analysis, Tajvidi, M., Falk, R.H., J. Hermanson, 2006, Vol. 101, pp. 4341-4349, Vol. 97, pp. 1995-2005, Journal of Applied Polymer Science. http://www.fpl.fs.fed.us/documnts/pdf2006/fpl_2006_tajvidifalk.pdf

• Time Temperature Superposition Principle Applied to a Kenaf Fiber-High Density Polyethylene Composite, Tajvidi, M., Falk, R.H., J. Hermanson, 2005, Vol. 97, pp. 1995-2005, Journal of Applied Polymer Science. http://www.fpl.fs.fed.us/documnts/pdf2005/fpl_2005_tajvidi001.pdf

• Summer Temperatures of Roof Assemblies Using Western Red Cedar, Wood-Thermoplastic Composite or Black or White-Fiberglass Shingles, Winandy, J.E., Barnes, H.M. and R.H. Falk, 2004, Forest Products Journal, 54(11):27-33, November.http://www.fpl.fs.fed.us/documnts/pdf2004/fpl_2004_winandy002.pdf
• Accelerated Weathering of Natural Fiber-Filled Polyethylene Composites, Lundin, T., Cramer, S.M., Falk, R.H., Felton, C., 2004 , Journal of Civil Engineering Materials, ASCE, Vol. 16, No. 6, pp. 547-555. http://www.fpl.fs.fed.us/documnts/pdf2004/fpl_2004_lundin001.pdf
• Dynamic Mechanical Analysis of Compatibilizer Effect on the Mechanical Properties of Wood Flour-High Density Polyethylene Composites, Behzad, M., Tajvidi, M., Ebrahimi, G., R.H. Falk, 2004, International Journal of Engineering, Vol. 17, No. 1, pp. 95-104, April. http://www.fpl.fs.fed.us/documnts/pdf2004/fpl_2004_behzad001.pdf
• Study of the Effect of Compatibilizer on the Mechanical Properties of Wood Flour - Polypropylene Composites using Dynamic Mechanical Analysis (DMA), Tajvidi, M., Falk, R.H., G. Ebrahimi, 2003, 2nd International Conference of the European Society of Wood Mechanics, Stockholm, Sweden, May. http://www.fpl.fs.fed.us/documnts/pdf2003/tajvi03a.pdf
• Influence of Natural Fibers on the Phase Transitions in High-Density Polyethylene Composites Using Dynamic Mechanical Analysis, Tajvidi, M., Falk, R.H., Hermanson, J.C, and Felton, C., 2003), Proceedings of the 7th International Conference on Woodfiber-Plastic Composites, May, Madison WI. http://www.fpl.fs.fed.us/documnts/pdf2003/tajvi03a.pdf
• Temperature Histories Of Plywood Roof Sheathing And Roof Rafters As Used In North American Light-Framed Construction, Winandy, J.E., Tenwolde, A., Falk, R.H., H.M. Barnes, 2003, Volume 3, pg. 114 – 121, Proceedings of the International Timber Engineering Conference, Forest Research Institute of Malaysia, Kepong, Kuala Lumpur, Malaysia. http://www.fpl.fs.fed.us/documnts/pdf2002/winan02b.pdf
• Accelerated Weathering of Natural Fiber -Thermoplastic Composites: Effects of Ultraviolet Exposure on Bending Stiffness and Strength, Lundin, T., Falk, R.H., C. Felton, 2001, Proceedings of the 6th International Woodfiber-Plastic Composites Conference, Forest Products Society, May, Madison, Wisconsin. http://www.fpl.fs.fed.us/documnts/pdf2001/lundi01a.pdf
• Performance of Fasteners in Wood Flour-Thermoplastic Composite Panels , Falk, R. H., Vos, D.J, Cramer, S.M., B.W. English, 2001, Forest Products Journal, 51(1):55-61, January. http://www.fpl.fs.fed.us/documnts/pdf2001/falk01a.pdf
• The Effects of Weathering on Wood/Thermoplastic Composites Intended for Outdoor Applications, Falk, R.H., Lundin, T., C. Felton, 2000, Proceedings of the PATH Conference on Durability and Disaster Mitigation in Wood-Frame Housing, Forest Products Society, November 6-8, Madison , Wisconsin . http://www.fpl.fs.fed.us/documnts/pdf2000/falk00c.pdf
• The Effects of Weathering on the Color Loss of Natural Fiber/Thermoplastic Composites, Falk, R. H., C. Felton, C., T. Lundin, 2000, Proceedings of the Third International Symposium on Natural Polymers and Composites, May 14-17, Sao Pedro, Brazil. http://www.fpl.fs.fed.us/documnts/pdf2000/falk00b.pdf
• The Comparative Performance Woodfiber-Plastic and Wood-Based Panels, Falk, R. H. and Vos, D.J, 1999, Proceedings of the 5 th International Woodfiber-Plastic Composites Conference, Forest Products Society, May 26-28, Madison, Wisconsin. http://www.fpl.fs.fed.us/documnts/pdf1999/falk99f.pdf
• Construction Applications of Woodfiber-Plastic Composites , English, B. W., R. H. Falk, 1995, Proceedings of the Society of Plastic Engineers 2nd Annual Conference on Recycling, November 2-3, Akron, Ohio.
• Factors that Affect the Application of Woodfiber-Plastic Composites, English, B. W., R. H. Falk, 1995, Proceedings of the Woodfiber-Plastic Composites Conference, Forest Products Society, May 1-3, Madison, Wisconsin. http://www.fpl.fs.fed.us/documnts/pdf1996/engli96b.pdf
  

Engineered Wood Products Testing and Performance

• Correlating Off-Axis Tension Tests to the Shear Modulus of Wood-Based Panels, Saliklis, E. P. and R. H. Falk, 2000, Journal of Structural Engineering, ASCE, 126(5):621-625, May. http://www.fpl.fs.fed.us/documnts/pdf2000/salik00a.pdf

• Design and Performance Aspects of American and Norwegian Glulam, Falk, R.H., 1997, Proceedings of Conference on European Glulam Performance (Vom Brett zum Brettschichtholz: Forschung - Normung - Einsatz international), June 6, Graz , Austria. http://www.fpl.fs.fed.us/documnts/pdf1997/falk97b.pdf

• Laminating Effect in Glued-Laminated Timber Beams, Falk, R.H.; F. Colling; 1995, Journal of Structural Engineering, ASCE, 121(12): pp.1857-1863, December.http://www.fpl.fs.fed.us/documnts/pdf1995/falk95a.pdf
• The Performance of Glued-Laminated Timber Beams of European Manufacture, Falk, R.H., R. Hernandez; 1995, Forest Products Journal, 45(7-8):27-34, July/August. http://www.fpl.fs.fed.us/documnts/pdf1995/falk95b.pdf
• Fiber Stress Values for Design of Glulam Timber Utility Structures, Hernandez, R.; Moody, R.C.; R. H. Falk; 1995, Forest Products Laboratory Research Paper RP-532, August. http://www.fpl.fs.fed.us/documnts/fplrp/fplrp532.pdf
• Glued-Laminated Timber: Laminating Effects, Falk, R.H.; F. Colling; 1994, Proceedings of the 1994 Pacific Timber Engineering Conference, July 11-15, Gold Coast, Australia. http://www.fpl.fs.fed.us/documnts/pdf1994/falk94b.pdf
• Investigation of Laminating Effects in Glued Laminated Timber, Colling, F.; R.H. Falk; 1993, Proceedings of the CIB-W18A Meeting 26, August, Athens, Georgia. http://www.fpl.fs.fed.us/documnts/pdf1994/colli94a.pdf
• Norwegian Bending Tests with Glued Laminated Beams - Comparative Calculations with the Karlsruhe Calculation Model, Aashiem, E.; Solli, K; Colling, F.; Falk, R.H.; Ehlbeck, J.; R. Görlacher; 1993, Proceedings of the CIB-W18A Meeting 26, August, Athens, Georgia. http://www.fpl.fs.fed.us/documnts/pdf1994/aashe94a.pdf
• Simulation Analysis of Norwegian Spruce Glued-Laminated Timber, Hernandez, R.; R.H. Falk; 1994, Proceedings of the CIB-W18A Meeting 26, August, Athens, Georgia. http://www.fpl.fs.fed.us/documnts/pdf1994/herna94a.pdf
• Expanded Markets for Engineered Wood Products: The Forest Products Laboratory's View, Peterson, K.; Falk, R.H.; Wolfe, R.W.; McNatt, J.D.; R. Hernandez; 1992, Proceedings of the Forest Products Society's Conference on Wood Products for Engineered Structures, November, Las Vegas, Nevada. http://www.fpl.fs.fed.us/documnts/pdf1993/peter93a.pdf
• The Strength of Norwegian Glued-Laminated Beams, Solli, K. H.; Aasheim, E.; R.H. Falk; 1992, Proceedings of the CIB-W18A Meeting 25, August, Åhus, Sweden. http://www.fpl.fs.fed.us/documnts/pdf1992/solli92a.pdf

• The Performance of Glued-Laminated Timber Beams Manufactured from Machine Stress Graded Norwegian Spruce, Falk, R.H.; Solli, K.H.; E. Aashiem; 1992, Norwegian Institute of Wood Technology Report, No. 77, September, 60 pg. http://www.fpl.fs.fed.us/documnts/pdf1992/falk92a.pdf

• Wood Research in Norway, Aashiem, E.; R.H. Falk; 1992, Wood Design Focus, Vol.2, No.4, pp.7-8.

• Prefabricated Wood I-Joists: An Industry Overview, Leichti, R J.; Falk, R.H.; T.L. Laufenberg; 1990, Forest Products Journal, 40(3):15-20, March. http://www.fpl.fs.fed.us/documnts/pdf1990/leich90b.pdf
• Prefabricated Wood Composite I-Beams: A Literature Review, Leichti, R.J.; Falk, R.H.; T.L. Laufenberg; 1990, Wood and Fiber Science, 22(1):62-80, January. http://www.fpl.fs.fed.us/documnts/pdf1990/leich90a.pdf
• Strength of Large Glulam Beams: Volume Effects, Moody, R.C.; Williamson, T.L.; R.H. Falk; 1990, Proceedings of the International Timber Engineering Conference, October, Tokyo , Japan . http://www.fpl.fs.fed.us/documnts/pdf1990/moody90a.pdf
• Wood I-Joists: A Look at Research and Production in North America, Falk, R.H.; Leichti, R.J.; D. Sharp; 1990, Proceedings of the International Timber Engineering Conference, October, Tokyo, Japan. http://www.fpl.fs.fed.us/documnts/pdf1990/falk90a.pdf
• Development of Design Stresses for Glulam Timber in the United States, Moody, R.C.; R.H. Falk; 1989, Proceedings of the Second Pacific Timber Engineering Conference, August, Auckland , New Zealand . http://www.fpl.fs.fed.us/documnts/pdf1989/moody89a.pdf
• Wood Diaphragms: Performance Requirements and Analytical Modeling, Falk, R.H.; R.C. Moody; 1989, Proceedings of the ASCE Seventh Structures and Pacific Rim Engineering Congress, May, San Francisco , California.http://www.fpl.fs.fed.us/documnts/pdf1989/falk89d.pdf
• State-of-the-Art Structural Modeling of Light Frame Assemblies and Buildings, Falk, R.H.; Moody, R.C.; R.W. Wolfe; 1989, Proceedings of the In-Grade Lumber Workshop, April, Madison, Wisconsin. http://www.fpl.fs.fed.us/documnts/pdf1989/falk89c.pdf
• Prediction of Diaphragm Displacement, Falk, R.H., R.Y. Itani, 1988, Proceedings of the International Timber Engineering Conference, September, Seattle, Washington. http://www.fpl.fs.fed.us/documnts/pdf1988/falk88a.pdf

Seismic Performance of Wood Framed Buildings

• Seismic Performance of Low-Rise Wood Buildings, Soltis, L.A; R.H. Falk; 1992, Shock and Vibration Digest, 24(12):3-6, December. http://www.fpl.fs.fed.us/documnts/pdf1992/solti92a.pdf
• Finite Element Modeling of Wood Diaphragms, Falk, R.H.; R.Y. Itani; 1989, Journal of Structural Engineering, ASCE, 115(3):543-559, March. http://www.fpl.fs.fed.us/documnts/pdf1989/falk89b.pdf
• Seismic Behavior of Low-Rise Wood-Framed Buildings, Falk, R.H.; L.A. Soltis; 1988, Shock and Vibration Digest, 20(12):3-7, December. http://www.fpl.fs.fed.us/documnts/pdf1989/falk88b.pdf
• Dynamic Characteristics of Wood and Gypsum Diaphragms, Falk, R.H.; R.Y. Itani; 1987, Journal of Structural Engineering, ASCE, 113(6):1357-1370, June. http://www.fpl.fs.fed.us/documnts/pdf1987/falk87a.pdf
• Role of Diaphragms in the Mitigation of Natural Hazards in Low-Rise Wood-Framed Buildings, Falk, R.H.; Cheung, C.K.; R.Y. Itani; 1984, Proceedings of the CIB-W73 International Conference on Natural Hazards Mitigation, October, New Delhi, India. http://www.fpl.fs.fed.us/documnts/pdf1984/falk84a.pdf

Wood Deck Construction

• Details for a Lasting Deck, Falk, R.H.; S. Williams, 1996 , Fine Homebuilding, The Taunton Press, No. 102, pp. 78 -81, April/May. Republished in Building Porches and Decks, The Taunton Press’s For Pros by Pros Series, 2003. http://www.fpl.fs.fed.us/documnts/pdf1997/falk97d.pdf
• Controlling Moisture in Wood Decks, Falk, R.H., McDonald, K., J. Winandy; 1995, Fine Homebuilding, The Taunton Press, September, No. 97, pp.70-71. Republished in Building Porches and Decks, The Taunton Press’s For Pros by Pros Series, 2003. http://www.fpl.fs.fed.us/documnts/pdf1997/falk97c.pdf
• Residential Wood Decks: Materials, Construction, and Finishing, McDonald, K.; Falk, R.H.; Williams, S.; J. Winandy; 1996, Forest Products Society Design Manual, March, 93 pg. Available from the Forest Products Society at http://www.forestprod.org/
• Fasteners for Exposed Wood Structures, Falk, R. H.; A. J. Baker 1993, Wood Design Focus, 4(3):14-1. http://www.fpl.fs.fed.us/documnts/pdf1993/falk93b.pdf

Building Assessment/Nondestructive Evaluation

• Inspection of Timber Bridges Using Stress Wave Timing Nondestructive Tools: A Guide for Use and Interpretation, 1999, Ross, R.J., Pellerin, R.F., N. Volney, W.S. Salsig, Falk, R.H., FPL General Technical Report 114, 15 pg. http://www.fpl.fs.fed.us/documnts/fplgtr/fplgtr114.pdf
• Evaluation of Timber Bridges Using Stress Wave Technology, Pellerin, R.F., Ross, R.J., Falk, R.H., N. Volney,1994, Proceedings of the 1994 Pacific Timber Engineering Conference, July 11-15, Gold Coast, Australia. http://www.fpl.fs.fed.us/documnts/pdf1994/pelle94a.pdf
• Methods for Inspecting Wood Structures In-Place, Falk, R.H., Ross, R.J, 1990, Serviceability and Durability of construction Materials, Proceedings of the 1 st Materials Engineering Congress, August 13-15, Denver, Colorado. http://www.fpl.fs.fed.us/documnts/pdf1990/falk90c.pdf
• Inspection and Evaluation of Wood Structures in North America, Falk, R.H.; R.C. Moody; 1989, Proceedings of the Second Pacific Timber Engineering Conference, August, Auckland , New Zealand . http://www.fpl.fs.fed.us/documnts/pdf1989/falk89a.pdf
• Nondestructive Testing of Wood Products and Structures: State-of-the-Art and Research Needs, Falk, R.H.; Patton-Mallory, M.; K. McDonald; 1988, Proceedings of the Conference on Nondestructive Testing and Evaluation Technology for Manufacturing and Construction, August, Urbana, Illinois. http://www.fpl.fs.fed.us/documnts/pdf1990/falk90b.pdf
• Modeling Stress Wave Passage Times in Wood Utility Poles, Bulliet, W.M.; R.H. Falk; 1985, Wood Science and Technology, 19:183-191. http://resources.metapress.com/pdf-preview.axd?code=x76vj63756288618&size=largest