Our Mission & Purpose
In Less-Than-Truckload (LTL) shipping, incorrect freight classifications cause severe commercial friction. Shippers face unexpected Weight & Inspection (W&I) adjustments and punitive administrative fees ranging from $25 to over $150 per invoice.
FreightCal was founded to democratize enterprise-grade logistics data. By combining official 2026 National Motor Freight Classification (NMFC) standards with client-side computing, we empower warehouse managers, supply chain directors, and freight brokers to determine exact density tiers, freight classes, and equipment capacities before the carrier arrives at the loading dock.
Authoritative Standards & Regulatory Citations
All mathematical models, density scales, and compliance guides published across our 314+ pages directly conform to governing North American and international transportation authorities:
NMFTA / NMFC Standards
Full adherence to the official National Motor Freight Traffic Association 18-tier density scale (Classes 50 through 500) and NMFC Item 171 Bump Rule procedures.
U.S. DOT & FMCSA Compliance
Strict alignment with Department of Transportation Title 49 CFR regulations governing HazMat segregation (§ 177.848) and Bill of Lading statutory mandates (Part 373).
IATA & Intermodal Standards
Implementation of international dimensional weight divisors (139 for air cargo, 166 for domestic parcel) and ISO 668 intermodal shipping container payload ratings.
ASTM & Pallet Engineering
Material densities derived from ASTM International metallurgical databases and EPAL / NWPCA load capacity guidelines for 48×40 inch GMA wood pallets.
Editorial Review & Domain Expertise
Our technical content and algorithmic engines are reviewed and maintained by certified logistics professionals to ensure mathematical rigor and real-world applicability:
Marcus Vance, CLTD
Lead Logistics AuditorCertified in Logistics, Transportation & Distribution · 15+ Years LTL Carrier & Brokerage Auditing
Marcus oversees freight class classification tables, density boundary algorithms, and dispute dispute resolution workflows across FreightCal. His background includes defending over 10,000 W&I invoice disputes for Fortune 500 manufacturing shippers.
Calculation Transparency & Quarterly Audits
We believe in Zero-Black-Box calculation transparency. Every formula executed on this platform is published in plain text:
- Pounds Per Cubic Foot (PCF):
Weight (lbs) ÷ [Length × Width × Height (in) ÷ 1,728]. - Pallet Loading (Ti-Hi): Tier limits constrained by 48×40 in deck footprint, maximum legal height (96 in), and 2,500 lbs standard pallet load limits.
- Bump Rule Logic (NMFC Item 171): Verification of whether declaring extra artificial weight reduces overall invoice cost into lower freight class brackets.
Audit Cycle: Our databases are audited quarterly immediately following public NMFTA Docket hearings to incorporate any newly assigned, modified, or canceled NMFC commodity codes.
Advisory Notice & Legal Disclaimer
FreightCal is an independent logistics intelligence resource. NMFC® is a registered trademark of the National Motor Freight Traffic Association, Inc. (NMFTA). FreightCal is not affiliated with or endorsed by the NMFTA. Freight class calculations provided on this site are estimates based on published density guidelines and do not constitute a legally binding carrier contract. Final freight charges are subject to individual carrier tariffs, rules circulars, and official W&I certificates.