Surface Plate Flatness Verification
Expert flatness measurement using Moody Plot analysis to evaluate surface plate condition and ensure continued accuracy of your reference plane for inspection and layout operations.
Maintain precision and confidence in your inspection and layout work with professional surface plate leveling from Sarkinen Calibrating. Our expert flatness verification and Moody Plot analysis ensure your reference planes remain accurate as plates wear over time, protecting part accuracy and measurement reliability. Whether supporting production environments or quality control operations, we deliver NIST-traceable results that keep your operations running smoothly.
Comprehensive precision measurement solutions to maintain accuracy, verify flatness, and ensure reliable reference planes for your critical inspection work.
Expert flatness measurement using Moody Plot analysis to evaluate surface plate condition and ensure continued accuracy of your reference plane for inspection and layout operations.
Precise detection of pitch and roll errors using Mahr-Federal's Electronic Level, identifying angular deviations that affect measurement accuracy and supporting proper alignment verification.
Comprehensive evaluation of wear patterns, material condition, and measurement reliability to determine if your surface plate continues to provide accurate reference standards for production work.
Initial Condition Assessment and Documentation
We begin with a thorough evaluation of your surface plate's current state, documenting wear patterns, usage history, and any visible concerns. This baseline assessment helps identify problem areas and establishes measurement priorities for the verification process.
Precision Flatness Measurement Using Moody Plot
Electronic Leveling and Angular Verification
Data Analysis and Compliance Reporting
Recommendations and Ongoing Maintenance Planning
Manufacturing facilities across the Pacific Northwest rely on our precision calibration services to maintain accuracy and minimize downtime.
"I have worked with Mr Sarkinen on a job in Portland He is a Highly Skilled, Knowledgable Professional. I would definitely recomend him for all your Machine Tool Calibration Metrics. Sincerely Curtis Page Naughtellis CNC Service"
"This guy knows his stuff. Would definately recommend! Friendly good people!"
"As plant manager at Triad, I am always looking for ways of testing and measuring the condition of our large machines. Our outside repair tech suggested that I have Sarkinen Calibrating run their Ball Bar Test on all of our machines to show if we had any critical wear issues..."
"I have worked with Mr Sarkinen on a job in Portland He is a Highly Skilled, Knowledgable Professional. I would definitely recomend him for all your Machine Tool Calibration Metrics. Sincerely Curtis Page Naughtellis CNC Service"
"This guy knows his stuff. Would definately recommend! Friendly good people!"
"As plant manager at Triad, I am always looking for ways of testing and measuring the condition of our large machines. Our outside repair tech suggested that I have Sarkinen Calibrating run their Ball Bar Test on all of our machines to show if we had any critical wear issues..."
"I have worked with Mr Sarkinen on a job in Portland He is a Highly Skilled, Knowledgable Professional. I would definitely recomend him for all your Machine Tool Calibration Metrics. Sincerely Curtis Page Naughtellis CNC Service"
"This guy knows his stuff. Would definately recommend! Friendly good people!"
"As plant manager at Triad, I am always looking for ways of testing and measuring the condition of our large machines. Our outside repair tech suggested that I have Sarkinen Calibrating run their Ball Bar Test on all of our machines to show if we had any critical wear issues..."
We deliver precision calibration solutions backed by NIST-traceable accuracy and real-world manufacturing experience.
All measurements fully traceable to NIST and International Standards, exceeding the required 10:1 calibration ratio.
Local service throughout Portland OR and SW Washington means quicker scheduling, reduced downtime, and faster issue resolution than distant providers.
Founded by a former machine operator who understands production realities—we deliver solutions that increase efficiency, not just equipment checks.
Beyond surface plates, we offer complete precision measurement services including laser interferometry, ballbar testing, and rotary axis calibration.
Led by experience, driven by precision and customer service.
Founder
Larry founded Sarkinen Calibrating with a unique perspective—he started his career as a machine operator, not as a calibration specialist. This hands-on production background shapes how he approaches every service call today. For Larry, calibration has never been just about maintaining equipment or checking boxes; it's always been about understanding the real-world challenges manufacturers face on the shop floor. He knows firsthand how unexpected downtime disrupts schedules, how measurement uncertainty creates costly rework, and how proper calibration directly impacts production quality and efficiency. This operator-first mindset drives Sarkinen Calibrating's focus on practical solutions that eliminate problems before they happen. Larry built the company to serve Portland OR and SW Washington manufacturers with NIST-traceable precision, faster response times, and the kind of insight that only comes from years spent operating the very machines he now calibrates. His commitment to customer service and predictable maintenance has made Sarkinen Calibrating a trusted partner for facilities that depend on accuracy.
How often should surface plates be leveled and verified?
Verification frequency depends on usage intensity, environment, and accuracy requirements. High-use production surface plates typically need annual verification, while less-used plates may be verified every 2-3 years. We recommend establishing a schedule based on your specific application and criticality to quality control.
What is a Moody Plot and why is it important?
Can a worn surface plate be re-leveled to restore accuracy?
Are your surface plate measurements traceable to NIST?
How long does a surface plate leveling service take?
What causes surface plates to lose accuracy over time?
Do you provide documentation for ISO/AS9100 compliance?
What service areas do you cover for surface plate leveling?
Our precision calibration experts are ready to discuss your specific measurement needs and accuracy requirements.
Fast, local calibration service for Portland OR, SW Washington, and surrounding manufacturing regions with regional expertise.
Portland & SW WA
Primary Service Area
Faster Than Out-of-Area
Response Advantage
5.0 Stars
Customer Rating
Contact us to confirm coverage or discuss out-of-area service options for your precision calibration needs.
Measurements traceable to National Institute of Standards
Perfect customer satisfaction from verified reviews
Adherence to ISO and global measurement standards
Contact Sarkinen Calibrating for fast, NIST-traceable surface plate leveling and flatness verification. We'll respond promptly to schedule your evaluation.
For immediate assistance, feel free to give us a direct call at (360) 907-3058 You can also send us a quick email at
For immediate assistance, feel free to give us a direct call at (360) 907-3058 You can also send us a quick email at