Carrier profile · USDOT 33524 · Updated Jun 13, 2026

Grubb Lumber Company Inc

14 power unitsavg 5.8 yrRegional · 5 statesWILMINGTON, DE86/100

AUTHORITY STATUS UNKNOWNRATED CONDITIONAL

Observed fleet · trailing 24 mo daily

14Power units

8 observed · MCS-150

1Trailers seen

Decoded · vPIC

5.8Avg age (yr)

2014–2025 · vPIC

Call dispatch(302) 652-2800 Email dispatchazentz@grubblumber.com

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Load decision · FMCSA snapshot · Jun 13, 2026

Clear to load

Clear under the current scoring — review the flagged signal below before loading.

Watch · 1

Vehicle out-of-service rate well above average37.5% of vehicle inspections were placed out of service vs the 22.26% national average.

In good standing · 1

Established 52 yearsOperating authority has been on file since 1974.

USDOT registration

yr registered

Authority not on file

Insurance (BIPD)— unknown

No filing on record

Vehicle OOS · 24-mo37.5%

▲ 22.26% nat'l

Crashes · fatal

Clean · 24 mo

USDOT registration

yr registered

Authority not on file

Insurance (BIPD)— unknown

No filing on record

Vehicle OOS · 24-mo37.5%

▲ 22.26% nat'l

Crashes · fatal

Clean · 24 mo

Vektor intelligence · beyond the federal recordProprietary signals computed from VIN-decoded inspections & daily FMCSA snapshots

Fleet typeIdentity

Asset-based

14 power units. Brokers price each fleet type apart.

Fleet age vs peersNewer

5.8 yr

Model years 2014–2025 · peer benchmark unavailable.

Identity stabilityStable

52 yr unchanged

Same registration since 1974 — no chameleon / reincarnation signal.

Safety

18 inspections · 24 mo · vs national benchmarks

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

Vehicle OOS 37.5%24-mo cumulative

050%nat'l 22.26%

Driver OOS 0.0%24-mo cumulative

030%nat'l 6.67%

Every inspection in the window pooled — 8 vehicle and 18 driver inspections over 24 months.

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

25.0% · latest 6-mo window▼ Falling

Share of vehicle-level roadside inspections in each trailing six-month window that resulted in a vehicle out-of-service order. Trending down 9.7 pts 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

16 inspections in the charted months · busiest month Dec '24 · 2

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.

Expected band

Under-inspected

Expected

Well-monitored

Heavily inspected

≈0.6 / unit·yr

thin signalabundant signal

Roadside-inspection volume is about what you'd expect for a 14-unit fleet — enough signal to read the safety record, though not a heavy sample.

Registered power units: 14
Inspections · 24 mo: 18
Annualized: ≈9 / yr
Coverage: ≈0.6 inspections / unit · yr

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 Driving11 · 0 OOS
393.207 Parts & accessories (vehicle condition)Vehicle Maintenance2 · 2 OOS
393.75 Tires (defective / underinflated / worn)Vehicle Maintenance2 · 2 OOS
393.9 Inoperative required lampsVehicle Maintenance2 · 1 OOS
393.110 Cargo securement — number of tiedownsVehicle Maintenance1 · 1 OOS
392.8 Driving of commercial motor vehiclesUnsafe Driving1 · 0 OOS
393.45 Brake tubing / hose defectsVehicle Maintenance1 · 1 OOS
393.95 Emergency equipment (extinguisher, triangles)Vehicle Maintenance1 · 0 OOS
393.104 Cargo securement — tiedownsVehicle Maintenance1 · 0 OOS
393.11 Required lamps/reflectors missingVehicle Maintenance1 · 0 OOS

Explore full safety record — inspections, BASICs, crashes

Authority & Insurance

Can they legally + adequately haul your load?

Insurance continuity· insurer · policy · lapses

No insurance filing history on record.

This timeline is the FMCSA filing history, and it ends at the most recent superseded filing — current policy status is not tracked here. Request a certificate of insurance to confirm active coverage before tendering.

Explore full authority & insurance record

Equipment

VIN-decoded · NHTSA vPIC

Capacity· power units = haulable capacity; trailers are towed

Registered power units (MCS-150): 14
Observed power (24 mo): 8
Trailers (towed): 1

Capacity is power units only — trailers are towed equipment and are never summed into a fleet-size figure.

Fleet age· model years · decoded VINs

5.8 yr

Average age

2025

Newest model yr

2014

Oldest model yr

66.7%

VINs decoded

Explore full fleet — VIN roster, equipment mix, age distribution

Operations & Lanes

Revealed by inspection density across 5 states · 24 mo

Operating footprint· revealed by roadside-inspection geography

Operating radiusRegional

revealed

States observed

US states

Inspections · 24 mo

NJ busiest

Inspection density by state· each tile = a state · shade = inspections, last 24 mo

Home base

WILMINGTON, DE

200 A STREET

Top corridor

NJ ⇄ DE

NJ 7 · PA 4 · DE 4

Density

fewermore

Shade = roadside inspections, last 24 mo.

See the full operating map — state density, top lanes

Network & Fraud

Affiliated entities & reincarnation signals · for review, not a verdict

No shared-identity links detected — no reincarnation flag, shared trucks, registration domain, or officer overlap with other carriers.

Capacity consistency· registered vs roadside-observed power units

Registered (MCS-150)

Observed (24 mo)

Registered capacity materially exceeds what is observed roadside — the MCS-150 may be stale or the fleet under-utilized.

Explore the carrier network & VIN cross-links

Identity & Federal

FMCSA census + L&I dossier

Location

Physical address: 200 A STREET, WILMINGTON, DE, 19801-5221
Mailing address: P O BOX 627, WILMINGTON, DE, 19899
Operation: Interstate

Contact

Phone: (302) 652-2800
Cell: (610) 256-4330
Fax: (302) 655-0295
Email: azentz@grubblumber.com
Web domain: grubblumber.com

Registration

Officers: Adam Zentz · David Arronson
USDOT / docket: 33524
First registered: Jun 1, 1974
Last MCS-150: Mar 3, 2026 · 350,000 mi (2025)
FMCSA safety rating: Conditional · Dec 18, 1987
D-U-N-S: 956663967

Fleet (self-reported · MCS-150)

Power units

Drivers

CDL drivers

350,000

Annual mileage

Open the full identity & federal record

Federal activity

Daily-captured FMCSA licensing & insurance changes — monitored by Vektor

Federal record activity· monitored daily by Vektor

No licensing or insurance changes captured since Vektor began monitoring this carrier (June 2026). Quiet is usually good.

Open the full federal-record activity feed

Reviews

Verified broker, shipper & driver reviews — moderated

Performance ratings only — never the Vektor risk score

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Verification summaryAuthority, insurance, safety and identity facts for GRUBB LUMBER COMPANY INC.

GRUBB LUMBER COMPANY INC (USDOT 33524) has a Vektor safety score of 86/100 and a Clear to load verdict, from the carrier's FMCSA record refreshed Jun 13, 2026.

The carrier has an unknown current for-hire authority status because no FMCSA L&I authority row is available as of Jun 13, 2026.

It has an unknown current BIPD insurance status because no FMCSA L&I active-filing snapshot is available as of Jun 13, 2026.

Its vehicle out-of-service rate was 37.5% over the last 24 months, versus the 22.26% CVSA national average, from FMCSA roadside-inspection data refreshed Jun 13, 2026.

The carrier received 18 roadside inspections in the last 24 months — 8 vehicle-level and 18 driver-level — across 5 states, according to FMCSA roadside-inspection data refreshed Jun 13, 2026.

The carrier has 0 reportable crashes in the last 24 months and 1 fatal crash across the full FMCSA crash record available as of Jun 13, 2026.

It reports 14 power units and 7 drivers in its most recent MCS-150 filing dated Mar 3, 2026.

It has an FMCSA safety rating of Conditional assigned Dec 18, 1987 in the federal record refreshed Jun 13, 2026.

Frequently asked

What is GRUBB LUMBER COMPANY INC's USDOT number?

GRUBB LUMBER COMPANY INC's USDOT number is 33524.

Is GRUBB LUMBER COMPANY INC authorized to operate?

As of Jun 13, 2026, GRUBB LUMBER COMPANY INC is active in the FMCSA register.

What is GRUBB LUMBER COMPANY INC's safety record?

GRUBB LUMBER COMPANY INC has a 37.5% vehicle out-of-service rate (national average 22.26%) across 30 roadside inspections, with 0 reportable crashes in the last 24 months, and an FMCSA "Conditional" safety rating. Vektor's computed risk score is 86/100 (tier: clear).

How big is GRUBB LUMBER COMPANY INC's fleet?

GRUBB LUMBER COMPANY INC operates 14 power units and 7 drivers per its most recent MCS-150 filing.

Where is GRUBB LUMBER COMPANY INC based?

GRUBB LUMBER COMPANY INC is based in WILMINGTON, DE, with roadside inspections recorded across 5 states.

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