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Few things frustrate residential contractors more than having the quality of their work questioned after a project is complete. One of the more common and costly errors on residential jobsites is the incorrect use of torque. Whether it is over-torquing or under-torquing both can lead to project failures, wasted time and added expenses.
A major reason for this mistake is that many workers rely on “feel,” rather than precise measurements. This guesswork leads to a wide variety of headaches for the contractor.
Over-torquing may result in crushed wood fibres on products being installed such as cabinet doors, stripped fasteners, or cracked cladding. While under-torquing can lead to loose connections and leaks that generate unnecessary and expensive callbacks, forcing the contractor to rework projects ranging from critical structural elements to customer-facing finishes, explains Jakob Malpass, product manager of Core tooling at Milwaukee Tool Canada.
“These experiences translate to all sections of the residential construction end-user base, from remodelers, structural carpenters, and MEP tradespeople,” Malpass says. “These errors translate to increased labour and equipment costs. If they delay project timelines, contractors may face fines or legal action. Ultimately, it damages their reputation and bottom line”.
Despite being preventable torque related issues persist. But if it is preventable, then why is the application of the correct amount of torque a serious problem? According to feedback from professional end-users the lack of consistent standards and unclear torque expectations from project to project are major contributors.
“With labour costs often exceeding $50/hour, even small mistakes can quickly escalate into thousands of dollars in lost productivity,” Malpass says.
The incorrect use of torque can be found in a wide variety of projects on residential contractors’ jobsites with some of the most torque-sensitive applications including board connections for deck safety; structural connectors like trusses and beams; and window and door anchoring.
“These are areas where incorrect fastening can compromise both safety and building performance,” he adds.
What are the best methods for preventing torque-related issues? Improved contractor knowledge from fastener manufacturers, clear specifications on case-by-case applications, increased visibility and training at the post-secondary level and from site to site and using the right tools that prioritize innovation and productivity.
General torque charts based on trade-focused applications offer contractors a valued baseline (e.g., a 3/8″ Grade 5 bolt at 23 ft-lbs dry, ~15 ft-lbs lubricated), but the risk of error is high without the right equipment, Malpass notes.
This can be particularly true with less experienced workers who may be unfamiliar with torque-related issues. Fortunately, there are equipment solutions available in the marketplace designed to help contractors address this issue, such as Milwaukee’s M12 digital torque wrenches and M18 impact wrenches with Drive Control. These tools are designed with clear and repeatable torque settings; feedback mechanisms (audible, visual, digital); multi-mode options with specific torque outputs designed for different fastener types; and reporting features (like One-Key) to document work, easily share with jobsite superiors, and reduce warranty disputes.
“These tools are designed to help contractors consistently hit torque targets across applications like framing, decking, and window installation,” says Malpass.
Canada’s construction sector is suffering from a lack of skilled labourers. With experienced workers continuing to retire in droves, and fewer young people coming into the trades to replace them, helping workers avoid preventable mistakes and costly rework is more important than ever to ensure a contractor has the staff they need to tackle projects and maintain a healthy bottom line. Investing in innovative tools and technologies is one of the key strategies to help contractors build brighter futures for their businesses.