Quality Control

  • When a stick of lumber's dressed size is less than the minimum required dressed size, the grading agency includes the size in the grade stamp as required by PS 20.
  • Reduced dimensions can result in actual design overstress, unless the actual size is put into the lumber inventory of your software provider’s program.
  • It is incumbent on the purchaser to decide whether or not to use specially marked lumber; buyer beware if there is a downstream design issue and the grade stamp was not accounted for in the design.

When Goldilocks went to the bear’s house, it took her a while to find something that fit her just right. Fortunately, whether you’re a large manufacturer, a small one, or somewhere in between, a formal in-plant QC program is always a perfect fit. In this second article of our series looking at QC, we reached out to component manufacturers of all sizes and asked them about their experiences using the In-Plant WTCA QC program and TPI’s third-party inspection services.

Quality. It’s the word you want each and every one of your customers to attribute to your products. It’s a word that implies reliability, a characteristic that builds trust and respect. It’s also a concept that points to superior craftsmanship that differentiates you from your competitors.


  • Scott Ward first implemented In-Plant WTCA QC in 1998 and has more than a decade of experience with the program.
  • He reflects on the benefits he first saw when implementing the QC program and how QC helps differentiate his business based on the unique quality of their production.
  • The In-Plant WTCA QC program’s biggest impact for Ward’s company has been training employees and reducing customer product issues and related costs.


  • In addition to implementing a QC program and training staff, another good way to increase awareness of quality control issues is by creating QC posters strategically placed throughout the shop floor.
  • A QC board can use photos or actual material examples to illustrate common QC dos and don’ts.
  • Work is underway to revise and reaffirm Chapter 3 of the ANSI/TPI 1 standard on quality control.
  • Meet SBCA’s new president, Steve Stroder.
  • SBCA developed SCORE and other programs to help CMs run their companies as safe, productive, and risk-free as possible.
  • Banding together and implementing these tools not only benefits individual companies, it elevates our industry.