Carrier profile · USDOT 615140 · Updated Aug 6, 2026

Tuff Shed Inc

DBA TUFF SHED OR WOODMASTER PORTABLE BUILDINGS

120 power unitsavg 7.2 yrNational · 26 statesDENVER, CO74/100
AUTHORITY STATUS UNKNOWNRATED SATISFACTORY
Verified linkstuffshed.comFMCSA SAFER

Safety

Roadside out-of-service rates versus the national benchmark, inspection and crash trends, decoded violation themes, and ELD / hours-of-service integrity — the full safety picture behind the verdict.

Out-of-service rate· 24-mo cumulative · vs national

Vehicle OOS 34.5%24-mo cumulative
050%nat'l 22.26%
Driver OOS 7.7%24-mo cumulative
030%nat'l 6.67%

Every inspection in the window pooled — 58 vehicle and 65 driver inspections over 24 months.

Vehicle OOS rate· vehicle OOS · vehicle-level inspections · 6-month trailing

41.7% · latest 6-mo window● Steady

Share of vehicle-level roadside inspections in each trailing six-month window that resulted in a vehicle out-of-service order. Holding steady across the window. The national vehicle benchmark uses the same metric and is shown on the chart.

Roadside inspection history· 24 charted calendar months · vehicle / driver level · any-OOS overlay

66 inspections in the charted months · busiest month Feb '25 · 6

Vehicle-levelDriver-levelAny OOS

Monthly FMCSA roadside inspections across the 24 charted calendar months. Bars show level-qualified vehicle and driver populations; one inspection can qualify for both. The line shows inspections with any out-of-service result.

Inspection coverage· expected vs observed · the fraud signal

Inspection coverage

How heavily FMCSA inspects this fleet for its size — it tells you how much to trust the safety signals above. Thin coverage on a young authority is a fraud signal nobody else surfaces.

Thin coverage
Under-inspected
Expected
Well-monitored
Heavily inspected
≈0.3 / unit·yr
thin signalabundant signal
Few roadside inspections for a 120-unit fleet — the out-of-service and violation signals above rest on a small sample, so weight them cautiously. Thin coverage on a young authority is itself a flag.
Registered power units
120
Inspections · 24 mo
66
Annualized
≈33 / yr
Coverage
≈0.3 inspections / unit · yr

BASIC categories· CSA SMS · Aug 2026

11%
Unsafe Driving
Vektor peer est.
Hours-of-Service
0violations
clean · per-BASIC
27%
Driver Fitness
Vektor peer est.
41%
Controlled Substances
Vektor peer est.
57%
Vehicle Maintenance
Vektor peer est.

Percentile = standing among same-exposure peers (higher = worse). FMCSA publishes percentiles for only some carriers (shown official); elsewhere we show a Vektor peer-percentile estimate, or the absolute SMS measure when there are too few inspections to rank.

Violation themes· decoded · grouped by BASIC

What this carrier actually gets cited for — FMCSA violation codes decoded into plain English, ranked by frequency.

  • 392.2 State/local traffic law violation (speeding, etc.)Unsafe Driving50 · 2 OOS
  • 393.9 Inoperative required lampsVehicle Maintenance26 · 8 OOS
  • 393.43 Parts & accessories (vehicle condition)Vehicle Maintenance19 · 19 OOS
  • 393.75 Tires (defective / underinflated / worn)Vehicle Maintenance14 · 11 OOS
  • 396.17 Periodic (annual) inspectionVehicle Maintenance11 · 0 OOS
  • 393.95 Emergency equipment (extinguisher, triangles)Vehicle Maintenance8 · 0 OOS
  • 393.11 Required lamps/reflectors missingVehicle Maintenance7 · 0 OOS
  • 390.21 USDOT number marking on vehicleUnsafe Driving7 · 0 OOS
  • 391.41 No / expired medical certificateDriver Fitness6 · 2 OOS
  • 393.48 Brakes inoperativeVehicle Maintenance5 · 0 OOS

ELD & hours-of-service

No hours-of-service or ELD violations on record across 108 inspections — a clean logging history.

Crash history· 10 total · 1 in 24 mo

10
Total crashes
1
In last 24 mo
0
Fatal
5
Injury
YearCrashesFatalInjuryTow
20251011
20231011
20201001
20091001
20081001
20072002
20061011
20051011
20041011
DateStateFatalitiesInjuriesTow-away
Mar 4, 2025TX01Yes
May 6, 2023TX01Yes
Jan 9, 2020WI00Yes
Sep 23, 2009UT00Yes
Apr 24, 2008UT00Yes
Jun 25, 2007TX00Yes
Jan 22, 2007LA00Yes
Oct 16, 2006CA01Yes
Aug 25, 2005CA01Yes
Mar 3, 2004MO01Yes