Other Building Material Dealers · New Hampshire

Wallboard Supply Company

Name: Wallboard Supply Company Workplace Safety Data
Creator: PlainSafetyScore
License: https://creativecommons.org/publicdomain/zero/1.0/

Londonderry, NH · ~39 workers · 7 years of OSHA Injury Tracking Application data.

Compiled by PlainSafetyScore · August 25, 2026

F
Failing Safety Record: 10.2
Avg TCR: 3.4
Industry avg: 0
Fatalities

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The verdict

Wallboard Supply Company runs at 299% of its industry's injury rate - far more dangerous than the typical Other Building Material Dealers workplace, earning a grade F.

Wallboard Supply Company: 10.2 TCR = 299% of Other Building Material Dealers BLS 3.4 · 7y Form 300A (see methodology below)

Wallboard Supply Company safety composite

Wallboard Supply Company scores strongest on dart rate (safer than 82% of same-industry peers) and weakest on total case rate (tcr) (safer than 18%), 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).

48/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR): F 10.15 per 100 workers

Safer than 18% of industry peers
DART rate: B 0 per 100 workers

Safer than 82% 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

−15.6

2016→2022

Wallboard Supply Company injury rate improved

Wallboard Supply Company's TCR fell 15.6 from 20.0 in 2016 to 4.4 in 2022. Peak filing year was 2016 at 20.0 TCR. In 2022, DART was 0× this establishment's average TCR (severity share of cases).

2016=20.0 · 2017=6.5 · 2018=13.4 · 2019=4.1 · 2020=15.4 · 2021=7.2 · 2022=4.4

OSHA ITA Form 300A scorecard

Establishment book 444190 · Londonderry, NH ABOVE-IND · SMALL

Grade F · TCR 10.2 · 299% of ind

DART 0.0 DART
RANK #12/14
PHOTO 7360 L&W Supply
BOOK 7y book
INJ 33 inj
SIZE ~39 FTE

Nearest TCR peer: 7360 L&W Supply (0.0 TCR gap)

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

This site

10.2
7360 L&W Suppl

10.2
Lampert Lumber

10.2
Knoebel Lumber

10.1
PCS - North Hi

10.1

What this shows Wallboard Supply Company averages 10.2 TCR (299% of the Other Building Material Dealers BLS benchmark).

Wallboard Supply Company TCR series: 2016=20 · 2017=6.5 · 2018=13.4 · 2019=4.1 · 2020=15.4 · 2021=7.2 · 2022=4.4 · BLS 3.4

Where Wallboard Supply Company falls in its industry

1,643 Other Building Material Dealer establishments

Safer than 18% of graded establishments in this industry, whose median TCR is 5.2.

Grade F

More dangerous than peersSafer than peers

Narrower to New Hampshire alone (the establishments it most directly competes with for workers and contracts): ranked #12 safest of 14 Other Building Material Dealer employers in New Hampshire.

Wallboard Supply Company (39 employees, TCR 10.2) among 29 same-industry peers, split at the industry median of 35 employees and a TCR of 5.2

Wallboard Supply Company has more employees than the Other Building Material Dealers median and a higher 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
2022	4.4	0.0	2
2021	7.2	7.2	3
2020	15.4	15.4	7
2019	4.1	4.1	2
2018	13.4	13.4	6
2017	6.5	6.5	3
2016	20.0	16.0	10

OSHA ITA peer cross-reference

Establishment peer ledger

444190 · NH · Londonderry

1,643 Other Building Material Dealers employers nationwide with a credible TCR · 2,718 rated employers in New Hampshire with headcount on file · 105 employers in Londonderry, NH · 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	7360 L&W Supply	LAFAYETTE, IN	10.2 TCR
NAICS-TCR	Knoebel Lumber	ELYSBURG, PA	10.1 TCR
NAICS-TCR	Lampert Lumber - North Branch	NORTH BRANCH, MN	10.2 TCR
NAICS-TCR	PCS - North Highlands	NORTH HIGHLANDS, CA	10.1 TCR
STATE-SIZE	Presby Construction Inc.	FRANCONIA	39 FTE
STATE-SIZE	North Branch Construction - NBC	CONCORD	39 FTE
STATE-SIZE	LaMontagne Builders Inc.	BEDFORD	39 FTE
STATE-SIZE	NorthPoint Construction Management LLC	HUDSON	39 FTE
CITY-NEAR	L3Harris	Londonderry	893 FTE
CITY-NEAR	L3 Technologies, Insight Division	Londonderry	857 FTE
CITY-NEAR	HARVEY BUILDING PRODUCTS, LONDONDERRY NH	Londonderry	532 FTE
CITY-NEAR	Market Basket #42	Londonderry	524 FTE
NAT-TCR	T122	Saginaw, TX	10.2 TCR
NAT-TCR	217952-Shv-Industrial Sta	Shreveport, LA	10.2 TCR
NAT-TCR	253730-Gladwin Po	Gladwin, MI	10.2 TCR
NAT-TCR	252504-Det-Fox Creek Sta	Detroit, MI	10.2 TCR
NAT-SIZE	Poulin - Derby	Derby, VT	39 FTE
NAT-SIZE	US - Branch Network : 0499	St Paul, MN	39 FTE
NAT-SIZE	US - Branch Network : 0449	Los Angeles, CA	39 FTE
NAT-SIZE	HG082	Salem, OR	39 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: 2022, 2021, 2020, 2019, 2018, 2017, 2016. 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.