US WARN layoff noticesEmployersM › Masonite

Masonite — WARN Act layoff notices

Official state WARN filings by Masonite since 1988, normalized from state labor department sources. Latest notice: 2026-08-25.

Also filed as: Owens Corning Doors

10notices
803workers affected
6states
Notice dateStateLocationEmployeesEffective dateType
2026-08-25New YorkBroome462026-11-23Closure
2023-02-27CaliforniaSan Joaquin County592023-05-05Closure Permanent
2022-09-28IndianaWalkerton742022-11-27LO
2019-05-23CaliforniaStockton, San Joaquin1502019-07-25Closure Permanent
2019-03-14FloridaTAMPA, FL, 33619602019-05-14
2019-02-15FloridaLARGO, FL, 33773352019-04-16
2018-09-19CaliforniaStockton, San Joaquin1312019-03-19Closure Permanent
2012-11-29Kentucky72Closure
2009-10-22IndianaSouth Bend732009-12-23CL
2007-03-01New JerseyLOGAN TOWNSHIP1032007-05-21

Source: state WARN Act disclosures, normalized in the free US WARN notices dataset (CSV/JSON, no login, no delay, notices 1988+). WARN notices are advance notifications of plant closings and mass layoffs; actual layoff counts and dates can change after filing.

Get told the next time Masonite files a WARN notice

WARN Watch re-checks your employers and states on every daily refresh and posts new matches to a private alert page, an RSS feed and a Slack or Teams webhook. No login, no dashboard to remember.

Watch Masonite free for 30 daysNo card. After the trial it is $49 for a year — one payment, no auto-renew, 14-day refund. The notice data on this page stays free either way.