Build Faster.

Build Safer.

Elevate Your Build.

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Introducing Timber Core™

Timber Core is a precision-engineered, modular stair core system designed to replace traditional stair core systems. Built from CLT and glulam components, Timber Core installs rapidly—each module setting in about an hour—providing immediate, code-compliant access across all floors of the construction project.

Engineered for strength, our cores meet rigorous fire, seismic, and wind standards while reducing embodied carbon compared to traditional concrete or steel cores.

Prefabrication ensures accuracy, minimizes waste, and accelerates timelines, delivering a smarter, more efficient, and sustainable stair core solution for modern building projects.

Timber Core ™ delivers faster installation, superior safety, and sustainable performance — giving your project a smarter, greener, and more efficient stair core solution from day one.

Built Faster

Timber Core’s modular stair core system enables rapid, efficient installation, significantly accelerating timelines. Pre-assembled and precisely engineered, its components fit perfectly on-site, reducing labor and minimizing downtime. Each module installs in about an hour, providing immediate, code-compliant access to all levels once the foundation is set. This speed improves workflows, keeping projects on schedule and within budget.
→ Installs up to 72x faster than traditional CMU cores

Built Safer

Timber Core sets a new standard for safety in mass timber construction. Each modular stair core is engineered with seismic and wind resistance and a two-hour fire rating, delivering exceptional strength and reliability. Its precise, prefabricated design minimizes on-site risks and labor demands, ensuring a safer, more efficient, and controlled environment for workers and future occupants.

→ Rated for 120 MPH winds and seismic Design Category D

Built Greener

Build Greener Timber Core’s modular stair core system, crafted from Glulam treads and CLT panels, embodies sustainability. Using responsibly sourced timber reduces the carbon footprint compared to steel or concrete. Prefabrication minimizes on-site waste and emissions, while natural materials offer durability, thermal efficiency, and a smaller environmental impact throughout the building’s lifecycle.

→ Up to 170% carbon benefit over traditional concrete stair cores

Close-up of stair steps with safety messages in English and Spanish, including "WATCH YOUR STEP," "SAFETY FIRST," and "HOLD THE HANDRAIL.
A worker carries a blue ladder near a large wooden structure with "Timber Core" branding inside a warehouse-like building.
Close-up of a wooden platform with evenly spaced wooden blocks attached along the edge; several workers in safety vests are visible in the background of a construction site.
A person assembles a wooden joint on a light-colored wooden surface, aligning two pieces with dowels for furniture construction.
A wooden booth with "Timber Core" logos is being assembled in a large indoor space. Two people work nearby, with a yellow ladder leaning against the booth.
Large two-story timber booth labeled "Timber Core" at a trade show, with people standing on the upper deck and informational displays on the outside walls.
A large Carpentry Plus trade show booth with timber walls, display screens, and informational panels inside a spacious convention center.
A two-story Timber Core trade show booth made of light wood, featuring a TV, table, informational signs, and company branding in a large exhibition hall.
Wooden walls and ceiling with a strip of LED lighting installed along the edge where the ceiling and wall meet.
Close-up of wooden stairs with black metal supports, attached to a vertical wood-paneled wall. The stair treads show natural wood grain and knots.
Close-up of wooden stairs with black metal nosing and perforated metal risers, adjacent to a wooden wall with visible grain pattern.
Wooden staircase with black textured anti-slip treads and a decorative perforated metal riser panel, adjacent to a natural wood wall.
Close-up of stairs covered with white textured stair guards featuring safety messages and orange strips; adjacent black flooring with Skudo branding visible.
Close-up of a wooden tabletop with a rectangular mortise cut and several woodworking pieces and tools arranged in the background.
A person wearing a green long-sleeve shirt uses a wooden tool to smooth or measure a wooden surface in a workshop.
Wooden staircase with black textured anti-slip strips on each step, flanked by wooden walls on both sides.
Large wooden trade show booth for Timber Core, featuring branding, informational displays, a TV screen, and an upper deck area in a convention center setting.
Wood-paneled interior with two black metal staircases separated by a wooden wall; one staircase ascends to the left with a handrail, the other ascends to the right.
A row of evenly spaced wooden blocks, each fastened with two screws, is attached to a large plywood sheet in a workshop setting.
Two workers on ladders assemble a wooden structure with stairs inside a large industrial building. Tools and construction materials are scattered on the floor.
Indoor construction stairs covered with protective panels labeled with safety messages such as "SAFETY FIRST" and "HOLD THE HANDRAIL" in a partially finished building.
Large wooden booth labeled "Timber Core" being set up in an indoor convention center by workers in safety vests; tarp partially covers the floor.
Wooden staircase with metal railings, illuminated by horizontal lines of natural light streaming through gaps, creating striped patterns on the walls.
A wooden staircase with metal-edged steps and black handrails ascends between wooden walls, with a landing partway up and additional stairs turning right.
Wood-paneled stairwell with two sets of stairs and black handrails, separated by a central wall, in a modern building interior.
Wood-paneled staircase with black metal railings, split into two directions by a central wall, set in a modern interior.
A flatbed semi-truck transports a large, white, wrapped load marked “OVERSIZE LOAD” on a rural road under a partly cloudy sky.
Wood-paneled staircase with black railings leading down to a landing and another flight of stairs, under a metal-grate staircase above.

Get in touch

We would love to connect with you about how Timber Core can be a part of your next project. Please fill out our contact form, and someone from our team will get back to you soon.

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FAQ

WHY CHOOSE TIMBER CORE FOR MY PROJECT?
Timber Core delivers a faster, safer, and greener stair solution—cutting installation time, enhancing on-site safety, and reducing your project’s environmental footprint with precision-engineered mass timber.
HOW TALL CAN TIMBER CORE GO?
Timber Core is engineered to stand tall—freestanding up to 75 feet (approximately five stories)—and once integrated within the building structure, it can extend confidently up to 12 stories, delivering unmatched modular strength and flexibility from the ground up.
HOW FAST IS INSTALLATION?
Each Timber Core module is precision-crafted for rapid deployment—installed on-site in about an hour, saving time, reducing labor, and accelerating your project’s path to completion.
WHAT’S THE FIRE RATING?
Timber Core achieves a robust two-hour fire rating, thanks to its UL V329 compliant half-lap joint design that enhances structural integrity and fire resistance without added complexity.
IS TIMBER CORE SEISMICALLY RATED?
While free standing, Timber Core is purpose-built to withstand Seismic Category D requirements, delivering reliable performance and peace of mind in even the most demanding seismic zones.
HOW DOES IT PERFORM IN HIGH WINDS?
While free standing, Timber Core is engineered to withstand the elements, with a wind load rating up to 120 mph, ensuring strength, stability, and resilience in high-wind conditions
WHAT MATERIALS ARE USED?
Timber Core is built with sustainability at its core—featuring walls made from responsibly sourced CLT and landings and treads crafted from premium, sustainably harvested GLT for a greener, high-performance solution.
HOW IS IT PROTECTED DURING CONSTRUCTION?
We’ve thought ahead. Inside, Timber Core includes durable protection systems to guard against heavy trade traffic. Outside, a waterproof, breathable wrap protects the wood while allowing it to vent naturally. For added versatility, an optional removable exterior wrap reveals the timber’s natural beauty once the building is dried in
WHAT TYPES OF BUILDINGS CAN IT BE USED IN?
Timber Core is built for versatility, making it a strong fit for Type III, IV, and V construction across a variety of building types. While it pairs naturally with mass timber, it’s also well-suited for hybrid and conventional projects, expanding the possibilities for modern stair design.
CAN TIMBER CORE BE PART OF THE LATERAL SYSTEM?
Timber Core is primarily designed as a standalone stair system—not part of the building’s lateral structure—but under the right conditions, it can be engineered to contribute to lateral stability, adding even more value to your project.