Building materials supply dealers · Illinois

Chicago Office

Name: Chicago Office Workplace Safety Data
Creator: PlainSafetyScore
License: https://creativecommons.org/publicdomain/zero/1.0/

Warrenville, IL · ~144 workers · 2 years of OSHA Injury Tracking Application data.

Compiled by PlainSafetyScore · August 25, 2026

B
Good Safety Record: 2.4
Avg TCR: 3.4
Industry avg: 0
Fatalities

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The verdict

Chicago Office runs at 71% of its industry's injury rate - safer than the typical Building materials supply dealers workplace, earning a grade B.

Chicago Office: 2.4 TCR = 71% of Building materials supply dealers BLS 3.4 · 2y Form 300A (see methodology below)

Chicago Office safety composite

Chicago Office scores strongest on total case rate (tcr) (safer than 81% of same-industry peers) and weakest on fatalities (safer than 50%), blended into one 0-100 breakdown against same-industry peers. A missing measure drops out and redistributes its weight rather than deflating the score. This is a per-dimension breakdown, distinct from the single letter grade above it (which weights TCR alone against the BLS industry benchmark).

67/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR): B 2.4 per 100 workers

Safer than 81% of industry peers
DART rate: C 0.7 per 100 workers

Safer than 64% of industry peers
Fatalities: D 0

Safer than 50% of industry peers

Benchmarked live against every credibly-rated employer in the same NAICS industry code in the current OSHA extract (a segment must have at least 8 rated peers to benchmark). Not a legal or compliance determination; PlainSafetyScore's own weighting (TCR 40%, DART 35%, fatalities 25%).

TCR Δ

−2.0

2017→2018

Chicago Office injury rate improved

Chicago Office's TCR fell 2.0 from 3.4 in 2017 to 1.4 in 2018. Peak filing year was 2017 at 3.4 TCR. In 2018, DART was 0.29× this establishment's average TCR (severity share of cases).

2017=3.4 · 2018=1.4

OSHA ITA Form 300A scorecard

Establishment book 444190 · Warrenville, IL AT/BELOW-IND · MID

Grade B · TCR 2.4 · 71% of ind

DART 0.7 DART
RANK #9/33
PHOTO Valley Lumber Basalt
BOOK 2y book
INJ 7 inj
SIZE ~144 FTE

Nearest TCR peer: Valley Lumber Basalt (0.0 TCR gap)

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2.4
Valley Lumber

2.4
2453-00060327-

2.4
CA082

2.4
Lexington Buil

2.4

What this shows Chicago Office averages 2.4 TCR (71% of the Building materials supply dealers BLS benchmark).

Chicago Office TCR series: 2017=3.4 · 2018=1.4 · BLS 3.4

Where Chicago Office falls in its industry

1,643 Building materials supply deal establishments

Safer than 81% of graded establishments in this industry, whose median TCR is 5.2.

Grade B

More dangerous than peersSafer than peers

Narrower to Illinois alone (the establishments it most directly competes with for workers and contracts): ranked #9 safest of 33 Building materials supply deal employers in Illinois.

Chicago Office (144 employees, TCR 2.4) among 29 same-industry peers, split at the industry median of 35 employees and a TCR of 5.2

Chicago Office has more employees than the Building materials supply dealers median and a lower injury rate than the industry's median TCR of 5.2. Workforce size and injury rate do not always move together within the same industry -- some of its smaller peers run higher rates than its larger ones, and vice versa.

Year-by-Year Safety Data

Year	TCR	DART	Injuries	Illnesses	Fatalities
2018	1.4	0.7	2	0	0
2017	3.4	2.0	5	0	0

OSHA ITA peer cross-reference

Establishment peer ledger

444190 · IL · Warrenville

1,643 Building materials supply dealers employers nationwide with a credible TCR · 22,804 rated employers in Illinois with headcount on file · 31 employers in Warrenville, IL · 4 cross-state NAT-TCR peers · 4 cross-state NAT-SIZE peers. Closest matches by relationship code are listed below.

Rel	Establishment	Place	Metric
NAICS-TCR	Valley Lumber Basalt	BASALT, CO	2.4 TCR
NAICS-TCR	2453-00060327-000121	NOKOMIS, FL	2.4 TCR
NAICS-TCR	CA082	SAN JUAN CAPISTRANO, CA	2.4 TCR
NAICS-TCR	Lexington Building & Supply Co., Inc.	LEXINGTON, KY, KY	2.4 TCR
STATE-SIZE	Muller Pinehurst Dairy Inc	ROCKFORD	144 FTE
STATE-SIZE	Norman Mechanical Inc	ELGIN	144 FTE
STATE-SIZE	A&R Mechanical Contractors	URBANA	144 FTE
STATE-SIZE	The Suter Company, Inc. (May)	SYCAMORE	144 FTE
CITY-NEAR	Warrenville - Homebased	Warrenville	377 FTE
CITY-NEAR	Little Friends Inc	Warrenville	318 FTE
CITY-NEAR	Constellation Nuclear Headquarters at Cantera	Warrenville	307 FTE
CITY-NEAR	1903 - Warrenville	Warrenville	263 FTE
NAT-TCR	Save A Lot	Stevens Point, WI	2.4 TCR
NAT-TCR	0034 - Lakewood, Ca	Lakewood, CA	2.4 TCR
NAT-TCR	0061 - Longview, Tx	Longview, TX	2.4 TCR
NAT-TCR	0269 - Winterville, Nc	North Winterville, NC	2.4 TCR
NAT-SIZE	Orangegrove Rehabilitation	Garden Grove, CA	144 FTE
NAT-SIZE	Wilson Trailer Sales Plant 7	Lennox, SD	144 FTE
NAT-SIZE	South 601 (Stores) MNE9	Minneapolis, MN	144 FTE
NAT-SIZE	Watertown (Wiwat)	Watertown, WI	144 FTE

Rel codes: NAICS-TCR · STATE-SIZE · CITY-NEAR · NAT-TCR/NAT-SIZE cross-state. Read with this employer →

Data Source: OSHA Injury Tracking Application (ITA), mandatory establishment-level injury/illness reports. Grades compare employer Total Case Rate (TCR) to BLS IIF industry benchmarks. Data covers years reported by this establishment: 2018, 2017. This is publicly available government data - not a legal determination of workplace conditions.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from official public datasets. See our methodology for details.