Flatness Verification
Precise flatness measurement using advanced metrology equipment and Moody Plot analysis to verify surface plate accuracy and identify wear patterns that could affect measurement reliability.
Maintain inspection accuracy and measurement confidence with professional surface plate calibration services. Sarkinen Calibrating provides expert leveling, flatness verification, and Moody Plot analysis to ensure your surface plates deliver reliable reference planes for precision work. As surface plates wear over time, unchecked degradation can compromise part quality and measurement repeatability. Our NIST-traceable calibration services help manufacturing facilities maintain consistent inspection results and prevent costly accuracy issues before they impact production.

Comprehensive calibration solutions to maintain surface plate accuracy and extend equipment service life.
Precise flatness measurement using advanced metrology equipment and Moody Plot analysis to verify surface plate accuracy and identify wear patterns that could affect measurement reliability.
Professional leveling services to ensure your surface plate provides a true reference plane, eliminating angular errors that compromise inspection accuracy and part layout work.
Comprehensive evaluation of surface plate condition, including wear analysis, surface integrity checks, and recommendations for maintenance or replacement to maintain measurement confidence.
Full certification documentation with measurements traceable to NIST and International Standards, providing proof of accuracy for quality audits and customer requirements.
Verification of measurement repeatability across the entire surface plate to ensure consistent inspection results and reliable reference plane performance for critical quality control operations.
Convenient on-site calibration services that minimize equipment downtime and eliminate the costs and risks associated with transporting heavy surface plates to calibration facilities.

We begin with a thorough visual inspection and preliminary evaluation of your surface plate's condition, checking for obvious wear, damage, or contamination that could affect calibration results. This assessment helps us understand the plate's service history and current state.
Manufacturing facilities across Portland and SW Washington trust our surface plate calibration expertise.
We deliver precision calibration services with faster response times and comprehensive solutions.
Faster response times serving Portland OR and SW Washington than out-of-area providers, minimizing your equipment downtime.
All measurements traceable to NIST and International Standards, providing verified accuracy and audit-ready documentation.
Founded by a former machine operator who understands real-world production challenges and calibration impact on quality.
Beyond basic calibration, we evaluate condition and provide actionable insights to maintain consistent inspection accuracy.
Led by professionals who understand precision manufacturing.

Founder
Larry's journey from machine operator to calibration service founder gives him a unique perspective that goes far beyond equipment maintenance. Having operated CNC machines firsthand, he understands the real-world production challenges manufacturers face daily—the frustration of unexpected downtime, the cost of scrap from axis errors, and the pressure to maintain tight tolerances. This operator-level experience drives his approach to calibration: it's not just about verifying numbers, it's about delivering solutions that genuinely increase production quality and efficiency. Larry built Sarkinen Calibrating on the principle that precision calibration should eliminate problems before they disrupt operations, providing manufacturers with the confidence that their equipment will perform exactly as promised. His hands-on background means he approaches every calibration with practical insight into how machine accuracy directly impacts your production floor, helping you achieve highly predictable operation with minimal disruption.
Surface plates are calibrated through a multi-step process that includes precision leveling, comprehensive flatness measurement across the entire surface, and data analysis using Moody Plot methodology. Measurements are taken at specific grid points to identify high and low spots, wear patterns, and overall deviation from flatness specifications. Results are compared against industry standards and documented with NIST-traceable certification.
Our calibration experts can assess your needs and recommend the right solution.
Serving manufacturing facilities throughout Portland OR and SW Washington with fast, reliable on-site calibration.
Portland & SW Washington
Primary Service Area
Faster Than Out-of-Area
Response Time
On-Site Calibration
Service Coverage
Contact us to schedule on-site service with minimal downtime.
All calibrations traceable to national standards
Consistently rated excellent by local manufacturers
Trusted by Portland area production facilities
Get fast, accurate calibration service with minimal downtime. Fill out the form and we'll respond promptly to discuss your needs.
For immediate assistance, feel free to give us a direct call at (360) 907-3058.
For immediate assistance, feel free to give us a direct call at (360) 907-3058.