Common Estimating Mistakes Contractors Make & How to Avoid Them

One Ten Estimations provides professional drywall estimating services tailored to your project’s scope. Get fast, affordable, and accurate takeoffs that reduce waste, streamline bidding, and improve job planning. Ideal for general contractors, subcontractors, and builders managing residential or commercial drywall work.

Jun 21, 2025 - 00:55
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Common Estimating Mistakes Contractors Make & How to Avoid Them

Even experienced contractors can make costly errors when estimating drywall. These mistakes may seem minor at first, but they often lead to bigger problems on the job. Here are some of the most common errors and how drywall estimating services can help avoid them.

Mistake 1: Ignoring Waste and Overlaps

Drywall waste varies by project complexity. Corners, cuts, and misalignments often require more sheets than anticipated. Professionals factor in waste percentages based on industry standards and job type.

Mistake 2: Missing Small Materials

Screws, joint compound, tape, and corner beads are often overlooked in DIY estimates. Estimating services itemize these essentials so you're not caught off guard mid-project.

Mistake 3: Miscalculating Labor

Labor isn't just about how many hours it takes to hang drywall it includes staging, cutting, clean-up, and coordination with other trades. Professionals factor all of this into your estimate.

Mistake 4: Using Outdated Tools

Paper takeoffs and basic spreadsheets leave room for error. Todays estimating services use PlanSwift and other software to ensure precision and clarity.

Conclusion

Partnering with a drywall estimating service like One Ten Estimations eliminates these costly mistakes, giving you peace of mind and greater project control.