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Interior view of a modern mass timber building featuring exposed wood beams, a central staircase, large windows, and people walking through the open space.Interior view of a modern mass timber building featuring exposed wood beams, a central staircase, large windows, and people walking through the open space.

Complete solutions for mass timber construction.

Backed by nearly 70 years of product innovation and structural engineering expertise, Simpson Strong-Tie  offers rigorously tested solutions designed to meet  the standards for Mass Timber construction 

Let's talk timber

Construction crew guides a large mass timber panel into place on a multi-story building site overlooking trees and water.

Supporting stronger, faster mass timber builds with confidence.

Simpson Strong-Tie equips design professionals with proven, code-listed solutions and technical expertise for resilient mass timber structures. Our rigorously tested products streamline design and installation while adapting to evolving codes. We partner with producers and installers to ensure reliable supply and jobsite efficiency tailored to mass timber challenges.

View Products

Explore our most popular mass timber products.

Want detailed specs, load tables, code reports, and the full range of solutions? Download the
Mass Timber Construction Catalog for complete product selection and application guidance.

Close-up of a Simpson Strong-Tie Quik Drive system installing fasteners into a metal connector plate on a mass timber floor panel.

Structural Fasteners and Fastening Systems

Two mass timber members with pre-installed concealed beam hanger hardware shown aligned for structural connection.

Beam Hangers

Mass timber column connection showing a steel connector securing two wooden beams with precision, emphasizing the structural stability of the joint.

Column Connections

Lifting device with chains attached to a mass timber panel using red metal anchors on a concrete surface.

Lifting Devices

Metal curtain-wall connector securing a vertical steel post to a horizontal mass timber beam with visible fasteners.

Curtain Wall Connectors

Yellow adjustable steel bracing support used for temporary stabilization in mass timber construction, with mounting plate and threaded rod.

Temporary Bracing

Catalogs and design guides.

Explore our collection of helpful catalogs and design guides-packed with expert insights, product specs, and practical tools to support your next project. We also have technical literature, bulletins, and letters specific to most applications. 

Mass Timber Construction catalog on a desk next to a notebook and laptop, featuring connectors and fasteners on a 3D wood cube cover design.

Connectors and Fasteners for Mass Timber Construction Catalog

Discover everything you need for your next mass timber project in our comprehensive Connectors, Fasteners & Anchors for Mass Timber Construction catalog. From beam hangers to anchors to tools and accessories, our products - and our nationwide supply network-help you build smarter, faster and stronger. Inside, you'll find detailed product specs, installation tips, and application illustrations to guide every step of your project. 

Simpson Strong-Tie CLT Diaphragm Design Guide on a desk with blueprints, a level, a pencil, and a yellow hard hat nearby.

CLT Diaphragm Design Guide for Simpson Products

This guide is intended to support qualified structural engineers and design professionals-including the Engineer of Record-in evaluating the use of Simpson Strong-Tie connectors and fasteners for designing connections in CLT diaphragms, in compliance with Special Design Provisions for Wind and Seismic, 2021 (SDPWS 2021) by the American Wood Council (AWC).