Headquarters » Testing Labs

Dwight E. McDonald, Laboratory General Manager
1507 Matt Pass
Cottage Grove, WI 53527
Phone: 608.839.3171
Fax: 608.839.3172
e-mail: dmcdonald@pfscorporation.com

Laboratory Staff:

Dwight E. McDonald, Laboratory General Manager
James Van Schoyck, Laboratory Administrator
Deepak Shrestha, Laboratory Technical Manager
James Sheldon, Lead Laboratory Technician
Rock Hartshorn, Laboratory Technician
Tim Corcoran, Laboratory Technician
Unique Shrestha, Laboratory Technician

Services Offered:

The PFS laboratory tests building products and materials for compliance with nationally-recognized building codes and standards. Other services available from the PFS laboratory are consulting, model code qualification testing, witnessing of tests, sampling and research.

View PFS' IAS accreditation.

Products Tested:

  • Engineered Wood Products
  • MDF panels, I-Joists, Rim-board, LVL, Trusses
  • Wood-Plastic Composite Lumber and Guardrail Systems
  • Deck Boards, Structural Elements, Guards and Handrails
  • Building Structural Components
  • Load Bearing Performance
  • Structural Insulated Panels
  • Structural Performance and Adhesive Qualification
  • Structural and Construction Adhesives
  • Exterior Wet-Use, Building Materials Product Use, Sub-floor and General Purpose
  • Roof Coverings and Exterior Sidings, All Types
  • Fasteners and Connections
  • Nails, Screws, Staples, Bolts, Connector Plates, Joist Hangers





  • Headquarters: Cottage Grove, Wisconsin
    Phone: 608.839.1013
    Copyright © 2004-2006. All Rights Reserved.