TUFF SHED INC
USDOT 615140 · Doing business as TUFF SHED OR WOODMASTER PORTABLE BUILDINGS
Active, interstate carrier, large fleet (350 power units) — safety rating: satisfactory.
Vetting summary
At a glance
- Out-of-service rate36.8% vs 19.1% national avg
- Crashes (24 months)1 reported — involvement does not imply fault
These signals summarize the records shown below — they are a starting point for your own checks, not a judgment of the carrier.
Registration
Carrier identity
| USDOT Number | 615140 |
|---|---|
| MC Number | — |
| Legal Name | TUFF SHED INC |
| DBA Name | TUFF SHED OR WOODMASTER PORTABLE BUILDINGS |
| Entity Type | — |
| Phone | 3037538833 |
| Address | 1777 SOUTH HARRISON STREET #600, Denver, CO, 80210 |
Status
Authority & safety
| Operating Status | Active |
|---|---|
| Operation Type | Interstate |
| Safety Rating | S — Satisfactory (rated 20050420) |
| Hazmat Flag | false |
Safety ratings: S = Satisfactory, C = Conditional, U = Unsatisfactory. A carrier with no rating has not been through a full FMCSA compliance review — this is common and not itself a red flag.
Our scoring
Safety scores
| Unsafe Driving | 80 / 100 |
|---|---|
| Hours-of-Service Compliance | 0 / 100 |
| Driver Fitness | 88 / 100 |
| Controlled Substances & Alcohol | 99 / 100 |
| Vehicle Maintenance | 79 / 100 |
Scores are 0-100 rankings computed by us from public FMCSA inspection measures; higher = worse relative to peers. Not official CSA/BASIC percentiles. How these scores are computed.
Safety events
Inspections & crashes (last 24 months)
| Inspections | 68 |
|---|---|
| Out-of-Service Rate | 36.8% vs 19.1% national average |
| Crashes | 1 total (0 fatal, 1 with injuries, 1 towaway) |
- 2025-03-04 — TX — 1 injured, towaway
Most frequent violation categories: 16 (27), 20 (21), 51 (18).
Crash involvement does not imply fault. FMCSA crash records list all reportable crashes involving a carrier, regardless of who caused them.
Equipment
Fleet & operations
| Power Units (trucks) | 350 |
|---|---|
| Drivers | 107 |
| Recent Annual Mileage | 1,894,806 |
| Last MCS-150 Filing | 11-NOV-25 |
TUFF SHED INC operates 350 power units — a larger fleet than 100% of carriers registered in CO.
Nearby
Other carriers in Denver, CO
- NATIONSWAY TRANSPORT SERVICE INC — USDOT 44950, 1761 power units
- QWEST CORPORATION — USDOT 453455, 1304 power units
- WILBUR-ELLIS COMPANY LLC — USDOT 41539, 1208 power units
- PUBLIC SERVICE COMPANY OF COLORADO — USDOT 52578, 984 power units
- CITY AND COUNTY OF DENVER — USDOT 530060, 930 power units
Browse all carriers in Denver, CO or all CO carriers.