
Project Facts
Location
Devens, Massachusetts
Scope
Phased Cleanroom & Manufacturing
Partnership
2015 – Present
Client
SMC, Ltd.
Project Facts
Location
Devens, Massachusetts
Scope
Phased Cleanroom & Manufacturing
Partnership
2015 – Present
Client
SMC, Ltd.
Cleanroom & Pharmaceutical Manufacturing Facility Construction – Devens, Massachusetts
A decade-long partnership delivering phased cleanroom and advanced manufacturing facilities.
Overview
SMC, Ltd. is one of McCarty Companies' longest-standing clients, with a partnership that began in early 2015 when SMC leased the former Gillette Building at 18 Independence Drive in Devens, Massachusetts. Since that time, McCarty Engineering and McCarty Associates have completed a series of complex, phased cleanroom and pharmaceutical manufacturing facility construction projects to support SMC's continued growth in medical-grade manufacturing, cleanroom production, and pharmaceutical operations.
The initial project, completed in 2016, included extensive renovations and expansion of the existing office areas, along with the construction of multiple cleanroom environments. Scope included a 22,000 SF Class 8 cleanroom for medical-grade injection molding, the shell of a future 22,000 SF cleanroom, a 7,300 SF Class 7 cleanroom for assembly, a dedicated tool room for mold cleaning and servicing, underpinning work, construction of five new loading docks, one drive-in dock, and reconstruction of the existing parking areas.
In 2018, McCarty Companies completed two additional phased buildouts within Cleanroom 2. The middle one-third of the space was constructed as an assembly area with a 16-foot ceiling height and bridge cranes installed to allow flexibility between assembly and molding operations. Later that year, the front one-third of Cleanroom 2 was also completed as assembly space, featuring a 22-foot ceiling height and bridge cranes to further expand production capability.
Expansion continued in 2020 with the construction of Cleanroom 3, located adjacent to Cleanroom 2. The front two-thirds of the space was built with a 22-foot ceiling height and preparatory work completed for future bridge crane installation. The rear one-third was developed as white space with an office mezzanine above. In 2021, McCarty Companies completed two major projects simultaneously: Cleanroom 4, a 15,400 SF Class 8 assembly room, and the Controlled Space addition, a 3,100 SF building addition designed exclusively for pharmaceutical storage.
After fully building out the available space, SMC once again engaged McCarty Engineering and McCarty Associates to locate, perform due diligence, design, permit, and construct a new facility at 11 Grant Road, Devens, Massachusetts for Werfen.

Key features

Cleanroom and manufacturing
- • 22,000 SF Class 8 cleanroom for injection molding
- • 22,000 SF cleanroom shell for future expansion
- • 7,300 SF Class 7 cleanroom for assembly
- • 15,400 SF Class 8 Cleanroom 4 (assembly)
- • Multiple phased cleanroom buildouts
Material handling and infrastructure
- • Bridge cranes installed across multiple cleanrooms
- • Tool room for mold cleaning and servicing
- • Five (5) new loading docks and one (1) drive-in dock
- • Reconstructed parking areas and site circulation
Phased expansion timeline
- • 2016 — Initial renovations and cleanroom construction
- • 2018 — Cleanroom 2 phased buildouts
- • 2020 — Cleanroom 3 expansion
- • 2021 — Cleanroom 4 and Controlled Space addition
3,100 SF Controlled Space addition
- • Dedicated pharmaceutical storage building addition
- • Constructed simultaneously with Cleanroom 4
- • Purpose-built for regulated storage requirements
Looking ahead
Werfen's relocation has freed approximately 130,000 SF of space at the initial site, enabling the next phase of SMC's long-term growth. McCarty Engineering and McCarty Associates have again been selected to design, permit, and construct significant new manufacturing and support space, with the current project slated for completion at the end of 2026.
Planned expansion scope
- • 23,700 SF assembly room
- • 20,100 SF Class 8 assembly room
- • 6,350 SF tool room with overhead and sliding jib cranes
- • 57,050 SF unfinished structural steel mezzanine for future expansion
New building addition and site work
- • 60,200 SF pre-engineered building addition
- • 25,675 SF molding room with three (3) 10-ton bridge cranes
- • 25,675 SF automated warehouse on mezzanine above molding
- • 31,355 SF high-bay warehouse with 45-foot clear height
- • Six (6) new 100,000 lb resin storage silos
- • New 62-space parking lot and site improvements
Ready to bring your project to life?
McCarty Companies delivers integrated solutions for complex commercial and industrial developments across Massachusetts and New England.
