Extreme Materials Inc (DOT# 1905971) – FMCSA Carrier Profile
doing business as KNIGHTS TRUCKING
DOT# 1905971MC# 699110● Active
Updated: 2026-03-09
Extreme Materials Inc is a registered motor carrier with the FMCSA under USDOT number 1905971. The company operates from Summerville, SC and maintains an active operating status with 38 power units and 38 drivers on record.
Safety Rating
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Company Information
Address480 Hodge Road, Summerville, SC, 29483
Phone(843) 821-7600
Entity TypeAuthorized For Hire
OperationInterstate
Power Units38
Drivers38
MCS-150 FiledFebruary 10, 2025
Annual Mileage2,143,000 mi (2025)
Inspection Summary
All-time Inspections
All-time94
Total
9
OOS
0
Driver OOS
9
Vehicle OOS
The out-of-service (OOS) rate represents the percentage of inspections that resulted in the carrier being placed out of service.
Crash History
Crash Records
All-time3
Total
0
Fatal
1
Injuries
0
Tow-Away
BASICS Safety Scores
BASICS Scores
Higher = more risk · FMCSA Behavior Analysis and Safety Improvement Categories0.2
Unsafe Driving
0.0
HOS Compliance
0.0
Driver Fitness
0.0
Controlled Substances
9.5
Vehicle Maintenance
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Frequently Asked Questions
What is USDOT Number 1905971?
USDOT number 1905971 is assigned to Extreme Materials Inc, an active motor carrier registered with the FMCSA, based in Summerville, SC.
How many inspections has Extreme Materials Inc had?
Extreme Materials Inc has recorded 94 total inspections with 9 out-of-service orders, representing an OOS rate of 9.57%.
Where is Extreme Materials Inc located?
Extreme Materials Inc is headquartered at 480 Hodge Road, Summerville, SC 29483.
Data sourced from the FMCSA Open Data Portal. Updated monthly. DOT# 1905971 · Last updated: 2026-03-09. View official FMCSA record →