Masonry contractors · Wisconsin

Corner Stone Construction

Janesville, WI · ~61 workers · 8 years of OSHA Injury Tracking Application data.

C
Average Safety Record
2.5
Avg TCR
2.8
Industry avg
0
Fatalities
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The verdict

Corner Stone Construction runs at 88% of its industry's injury rate - about level with the typical Masonry contractors workplace, earning a grade C.

Corner Stone Construction: 2.5 TCR = 88% of Masonry contractors BLS 2.8 · 8y Form 300A (see methodology below)

Corner Stone Construction safety composite

Corner Stone Construction scores strongest on total case rate (tcr) (safer than 70% of same-industry peers) and weakest on dart rate (safer than 12%), 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).

D

45/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
C 2.46 per 100 workers

Safer than 70% of industry peers

DART rate
F 6.81 per 100 workers

Safer than 12% of industry peers

Fatalities
D 0

Safer than 51% 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%).

Rising injury rate

Corner Stone Construction: 4.1 → 6.8 TCR

Peak year 2024 @ 6.8 TCR · DART/TCR 2.77× in 2024

Corner Stone Construction's TCR rose 2.7 from 4.1 in 2017 to 6.8 in 2024. In 2024, DART was 2.77× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 238140 · Janesville, WI AT/BELOW-IND · SMALL

Grade C · TCR 2.5 · 88% of ind

  • DART 6.8 DART
  • RANK #1/14
  • PHOTO Morris Masonry Resto…
  • BOOK 8y book
  • INJ 9 inj
  • SIZE ~61 FTE

Nearest TCR peer: Morris Masonry Restoration LLC (0.0 TCR gap)

Read with this employer → · Industry book → · Wisconsin employers → · Look up another →

Corner Stone Construction in the TCR neighbourhood

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

TCR

What this shows Corner Stone Construction averages 2.5 TCR (88% of the Masonry contractors BLS benchmark).

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

Corner Stone Construction TCR series: 2017=4.1 · 2018=2.4 · 2019=6.3 · 2020=0 · 2021=0 · 2022=0 · 2023=0 · 2024=6.8 · BLS 2.8

Where Corner Stone Construction falls in its industry

703 Masonry contractors establishments

Safer than 70% of graded establishments in this industry, whose median TCR is 3.9.

More dangerous than peersSafer than peers

Narrower to Wisconsin alone (the establishments it most directly competes with for workers and contracts): ranked #1 safest of 14 Masonry contractors employers in Wisconsin.

Corner Stone Construction (61 employees, TCR 2.5) among 29 same-industry peers, split at the industry median of 52 employees and a TCR of 3.9 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 0200400600 0246810 Average employees Total Case Rate Corner Stone Construction
Corner Stone Construction (61 employees, TCR 2.5) among 29 same-industry peers, split at the industry median of 52 employees and a TCR of 3.9

Corner Stone Construction has more employees than the Masonry contractors median and a lower injury rate than the industry's median TCR of 3.9. 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
2024 6.8 6.8 3 0 0
2023 0.0 0.0 0 0 0
2022 0.0 0.0 0 0 0
2021 0.0 0.0 0 0 0
2020 0.0 0.0 0 0 0
2019 6.3 6.3 3 0 0
2018 2.4 2.4 1 0 0
2017 4.1 4.1 2 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

238140 · WI · Janesville

703 Masonry contractors employers nationwide with a credible TCR · 12,834 rated employers in Wisconsin with headcount on file · 178 employers in Janesville, WI · 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 Morris Masonry Restoration LLC 2.5 TCR
NAICS-TCR Eatherton Masonry, Inc. 2.5 TCR
NAICS-TCR D.M. Sabia & Co., Inc. 2.5 TCR
NAICS-TCR Tikka Masonry Inc. 2.5 TCR
STATE-SIZE LaCrosse - Commerce Street 61 FTE
STATE-SIZE Commonwealth Construction Corporation 61 FTE
STATE-SIZE The Board Store Home Improvements, Inc. 61 FTE
STATE-SIZE Lakeview Construction, LLC 61 FTE
CITY-NEAR Service Center Operations : 0780 1,158 FTE
CITY-NEAR US - Supply Chain : 0780 1,087 FTE
CITY-NEAR 780 - JANESVILLE, WI 964 FTE
CITY-NEAR Seneca Foods Corporation 650 FTE
NAT-TCR SMR Farms 2.5 TCR
NAT-TCR Manufacturing Plant - Corning 2.5 TCR
NAT-TCR Cuyuna Range Elementary School 2.5 TCR
NAT-TCR DMZ Builders 2.5 TCR
NAT-SIZE Police Station 61 FTE
NAT-SIZE TLS Tulsa 61 FTE
NAT-SIZE Isle at Cedar Ridge 61 FTE
NAT-SIZE Police Department 61 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: 2024, 2023, 2022, 2021, 2020, 2019, 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.