Buildings, prefabricated, wood, manufacturing · California

120 - Ontario

Ontario, CA · ~35 workers · 3 years of OSHA Injury Tracking Application data.

C
Average Safety Record
2.7
Avg TCR
3.3
Industry avg
0
Fatalities
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The verdict

120 - Ontario runs at 82% of its industry's injury rate - about level with the typical Buildings, prefabricated, wood, manufacturing workplace, earning a grade C.

120 - Ontario: 2.7 TCR = 82% of Buildings, prefabricated, wood, manufacturing BLS 3.3 · 3y Form 300A (see methodology below)

120 - Ontario safety composite

120 - Ontario scores strongest on dart rate (safer than 88% 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).

B

77/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
B 2.71 per 100 workers

Safer than 84% of industry peers

DART rate
B 0 per 100 workers

Safer than 88% 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

−2.9

2017→2019

120 - Ontario injury rate improved

120 - Ontario's TCR fell 2.9 from 2.9 in 2017 to 0.0 in 2019. Peak filing year was 2018 at 5.2 TCR. In 2019, DART was 0× this establishment's average TCR (severity share of cases).

2017=2.9 · 2018=5.2 · 2019=0.0

OSHA ITA Form 300A scorecard

Establishment book 321992 · Ontario, CA AT/BELOW-IND · SMALL

Grade C · TCR 2.7 · 82% of ind

  • DART 0.0 DART
  • RANK #4/16
  • PHOTO Texas Timber Frames
  • BOOK 3y book
  • INJ 3 inj
  • SIZE ~35 FTE

Nearest TCR peer: Texas Timber Frames (0.0 TCR gap)

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120 - Ontario in the TCR neighbourhood

Average Total Case Rate among this establishment and nearest same-industry peers

TCR

What this shows 120 - Ontario averages 2.7 TCR (82% of the Buildings, prefabricated, wood, manufacturing BLS benchmark).

Source U.S. Department of Labor, OSHA Injury Tracking Application (Form 300A) As of 2026-08-25

120 - Ontario TCR series: 2017=2.9 · 2018=5.2 · 2019=0 · BLS 3.3

Where 120 - Ontario falls in its industry

177 Buildings, prefabricated, wood establishments

Safer than 84% of graded establishments in this industry, whose median TCR is 7.7.

More dangerous than peersSafer than peers

Narrower to California alone (the establishments it most directly competes with for workers and contracts): ranked #4 safest of 16 Buildings, prefabricated, wood employers in California.

120 - Ontario (35 employees, TCR 2.7) among 29 same-industry peers, split at the industry median of 48 employees and a TCR of 7.7 2×2 strategic matrix plotting 30 entities by Average employees (X) and Total Case Rate (Y), with a crosshair dividing the plot into four quadrants. Larger & higher-riskSmaller & higher-riskLarger & saferSmaller & safer than peers 050100150200 010203040 Average employees Total Case Rate 120 - Ontario
120 - Ontario (35 employees, TCR 2.7) among 29 same-industry peers, split at the industry median of 48 employees and a TCR of 7.7

120 - Ontario has fewer employees than the Buildings, prefabricated, wood, manufact median and a lower injury rate than the industry's median TCR of 7.7. 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
2019 0.0 0.0 0 0 0
2018 5.2 2.6 2 0 0
2017 2.9 2.9 1 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

321992 · CA · Ontario

177 Buildings, prefabricated, wood, manufacturing employers nationwide with a credible TCR · 51,834 rated employers in California with headcount on file · 599 employers in Ontario, CA · 4 cross-state NAT-TCR peers · 4 cross-state NAT-SIZE peers. Closest matches by relationship code are listed below.

Rel Establishment Metric
NAICS-TCR Texas Timber Frames 2.7 TCR
NAICS-TCR Woodhouse 2.8 TCR
NAICS-TCR Tuff Shed Store 060 - Albuquerque - SW 2.6 TCR
NAICS-TCR 150 - Los Angeles 2.9 TCR
STATE-SIZE CONSTRUCTION FABRICATION/CARPENTRY/PAINTING/ELECTRIC/PIPE 35 FTE
STATE-SIZE Meek Ranches LLC 35 FTE
STATE-SIZE Dresick Farms, Inc. - Farm 35 FTE
STATE-SIZE Wolfsen Inc 35 FTE
CITY-NEAR Prime Healthcare Services Inc. Location: St. Mary's, Passaic LLC 46-3499370 (HP29) 10,997 FTE
CITY-NEAR CAONA - ONTARIO HUB 4,372 FTE
CITY-NEAR ONTARIO HUB (CAONA) 3,354 FTE
CITY-NEAR Atlantic Solutions Group Inc, Inc. DBA Empire Workforce Solutions 3,240 FTE
NAT-TCR Hawkeye Paving Corp. 2.7 TCR
NAT-TCR 4598-Rtc Quincy 2.7 TCR
NAT-TCR Tops 669 2.7 TCR
NAT-TCR 178 - Schaumburg West 2.7 TCR
NAT-SIZE DGS Aviation Services : AVP - Scranton 35 FTE
NAT-SIZE 6800 Abilene Lbm 35 FTE
NAT-SIZE 3350 Colorado Springs Lbm 35 FTE
NAT-SIZE 1133 Boise Millwork 35 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: 2019, 2018, 2017. This is publicly available government data - not a legal determination of workplace conditions.
Data sourced from official public datasets. See our methodology for details.