Masons Supply Company is an active interstate carrier based in Portland, OR.
No insurance filings on record.
View on FMCSA L&I| Vehicle Type | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Straight Trucks | 10 | 0 | 0 |
| Tractors | 14 | 0 | 0 |
| Trailers | 10 | 0 | 0 |
| Total Power Units | 24 | ||
Distinct vehicles · 24 mo
vs 24 self-reported (MCS-150)
Top makes
Registered in
Higher values = more violations. 0 = clean record.
| Category |
|---|
| Category | vs. Cohort | vs. State | Reading |
|---|---|---|---|
| Unsafe Driving | 77% | 94% | Worse than most peers |
| HOS Compliance | 0% | 0% | Better than most peers |
| Driver Fitness | 98% | 97% | Worse than most peers |
| Controlled Substances | 0% | 0% | Better than most peers |
| Vehicle Maintenance | 91% | 96% | Worse than most peers |
Lower percentile = lower SMS measure = stronger safety record. Computed nightly across active carriers in the same state and fleet-size band.
| Type | Inspections | OOS | OOS % | Nat'l Avg |
|---|---|---|---|---|
| Driver | 0 | 1 | — | 6.67% |
| Vehicle | 0 | 6 | — | 22.26% |
| Hazmat | 0 | 0 | — |
| Period | Fatalities | Injuries | Tow-away | Total |
|---|---|---|---|---|
| No crashes recorded | 0 | 0 | 0 | 0 |
Most-cited violation codes
| BASIC Category | Total | Severe | OOS |
|---|---|---|---|
| Vehicle Maintenance | 19 | 4 | 7 |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Mar 24, 2026 | OR | STRAIGHT TRUCK | 3 | 2 |
| Mar 20, 2026 | OR | STRAIGHT TRUCK | 1 | 1 |
| Nov 11, 2025 | WA | TRUCK TRACTOR | 0 | 0 |
| Aug 28, 2025 | WA | STRAIGHT TRUCK | 2 |
| Insp w/ Viol |
|---|
| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 1 | 0.20 | — |
| HOS Compliance | 0 | 0.00 | — |
| Vehicle Maintenance | 7 | 11.07 | — |
| Driver Fitness | 1 | 1.20 | — |
| Controlled Substances | 0 | 0.00 | — |
| 4.44% |
Where they run
Inspected in 2 states. Top state WA accounts for 79% of activity. Activity outside home state (OR): 79%.
| Driver Fitness |
| 1 |
| 1 |
| 1 |
| Unsafe Driving | 1 | 0 | 0 |
| Jul 31, 2025 | WA | TRUCK TRACTOR | 5 | 2 |
| Jul 7, 2025 | WA | STRAIGHT TRUCK | 3 | 0 |
| Jun 3, 2025 | WA | TRUCK TRACTOR | 0 | 0 |
| May 15, 2025 | OR | STRAIGHT TRUCK | 0 | 0 |
| Jan 22, 2025 | WA | STRAIGHT TRUCK | 4 | 1 |
| Nov 27, 2024 | WA | STRAIGHT TRUCK | 1 | 0 |
| Date | Code | Description | BASIC | OOS |
|---|---|---|---|---|
| Mar 24, 2026 | 393110B1C | Cargo - Insufficient tiedowns (w/o headerboard/blocking) for article(s) of cargo 5 feet or less and 1100 lbs. or less | Vehicle Maintenance | Yes |
| Mar 24, 2026 | 39617CPI | Operating a CMV without documentation of a periodic inspection | Vehicle Maintenance | — |
| Mar 24, 2026 | 3963A1TAOCV | Tires - All others in contact with a part of the vehicle | Vehicle Maintenance | Yes |
| Mar 20, 2026 | 38323A2LCDLN | License (CDL) - Operate a CMV and does not possess a valid CDL | Driver Fitness | Yes |
| Aug 28, 2025 | 3963A1BALAC | Brake - Audible air leak from a brake chamber | Vehicle Maintenance | — |
| Aug 28, 2025 | 3963A1BOS | Brake - Defective brake(s) are equal to or greater than 20% of the service brakes on the vehicle/combination | Vehicle Maintenance | Yes |
| Jul 31, 2025 | 3929A2C | Cargo - Vehicle components or dunnage not secured | Vehicle Maintenance | Yes |
| Jul 31, 2025 | 393104F4C | Cargo - No edge protection for tiedowns | Vehicle Maintenance | — |
| Jul 31, 2025 | 39360C | Windshield - Damaged or Discolored | Vehicle Maintenance | — |
| Jul 31, 2025 | 39375A3TAOL | Tires - All others leaking or inflation less than 50% of the maximum inflation pressure on tire not equipped with ATIS | Vehicle Maintenance | Yes |