Rooted in Experience. Building for the Future.
Built on quality. Engineered for excellence. Delivered with integrity.
Rooted in Experience. Building for the Future.
Built on quality. Engineered for excellence. Delivered with integrity.
Our Mission
We design and manufacture high-quality trusses and components that stand the test of time, helping builders create with confidence and precision.
Our core Values
Efficiency
We move with purpose and precision to get the job done right and on time.
Partnership
We support one another as a team and build trusted customer relationships.
Grounded
We stay rooted in our values and anchored in Christ as we lead and serve.
Drive
We bring energy, ownership, and commitment to everything we do.
Quality
We take pride in doing things the right way, every time.
OUR STORY & FOUNDER
Cornerstone Truss & Components was born from the belief that builders deserve more than just reliable components. They deserve a true partner who shares their values, understands their challenges, and delivers with purpose.
After years of hands-on experience designing, framing, and supplying structural systems across the region, our founders knew it was time to build something different. What began as a small truss operation steadily expanded, and so did our vision. We outgrew our space, refined our systems, and reimagined the kind of company we wanted to lead.
Cornerstone represents a new chapter. With a new name, a new facility, and a renewed mission, we’re grounded in our faith and guided by a simple principle: do the right thing every time. We believe that integrity, hard work, and trust should be the backbone of every structure we help build. We’re here to serve with excellence, lead with humility, and help our customers create with confidence.
Junior de Lima – Director of Sales & General Manager
Junior brings more than 30 years of hands-on experience in construction, framing, and component manufacturing. He’s been in the field, on the crews, and at the helm—leading with a rare combination of technical insight and people-first leadership. At Cornerstone, Junior oversees sales, customer relationships, and overall business direction. He’s known for being responsive, solution-oriented, and deeply committed to helping builders succeed.

“Keep the faith and work hard. Nothing comes easy, but with the right people around you, anything is possible.”
– Junior de Lima, Founder
– Proverbs 16:3
SENIOR LEADERSHIP
Rainer Bezerra – Director of Engineering
With a background in structural engineering and hands-on experience in component manufacturing, Rainer Bezerra leads our in-house design department with precision and passion. Originally trained as an engineer in Brazil, Rainer joined Cornerstone after a full year of immersive factory training, giving him a rare blend of technical expertise and shop-floor insight.
Rainer manages our internal design team through every step of the process — from reviewing architectural plans and coordinating layouts to generating truss models and ensuring structural accuracy. Once designs are finalized, he submits them to MiTek’s engineering team for stamping and works directly with their engineers to implement any required revisions.
WHO WE SERVE
We supply engineered trusses, wall panels, and floor systems to builders, contractors, and developers across Massachusetts, New England, and the Mid-Atlantic. We’re proud to serve partners who demand precision, dependability, and trusted delivery—every time.