Stryker R+D Headquarters
Portage, MI · Healthcare · Client: Stryker

Structural solutions for the built environment
West Michigan's largest structural consulting group, JDH Engineering was founded in 1981 and is headquartered in Grandville, Michigan. It provides professional structural engineering services across more than 30 states, specializing in building design and renovation, construction-phase consulting, and structural forensic evaluations for architects, contractors, and building owners.
Tim DenHartighPrincipal / Senior Project Manager
Roland BokmaPrincipal / Senior Project Manager
Craig TamlynPrincipal / Senior Project Manager
Don AkhurstPartner / Senior Project Manager
Engineer of Record design services for new construction and renovation of structures across diverse material types.
Structural consulting support tailored for construction managers, subcontractors, and product suppliers to facilitate safe and cost-effective construction phase execution.
Preparation of sealed calculations for structural steel connections.
Sealed engineering calculations and design for stairs and handrails.
Cold-formed steel metal stud design and shop drawing preparation.
Engineering for shoring, concrete formwork, and other temporary construction installations.
Design and retrofit of fall arrest and fall protection systems.
Structural support design for solar and other renewable energy installations.
Forensic investigations, diagnostic evaluations, and structural repair design for existing buildings, bridges, and other structures.
Evaluation and repair design for structures affected by catastrophic events, long-term deterioration, or new loads.
Specialized engineering and assessment for the preservation and restoration of historic buildings.
Assessment and structural capacity ratings for bridge assets.
Technical consultation and expert witness testimony for structural legal matters.
Residential structural evaluations, including FHA-compliant assessments.
Commercial · Education · Healthcare · Mixed-Use · Multifamily Residential · Government · Religious · Sports & Recreation · Renewable Energy · Bridges
Portage, MI · Healthcare · Client: Stryker
Grand Rapids, MI · Commercial · Client: Perrigo
Grand Rapids, MI · Government · Client: Michigan State Police
Grand Rapids, MI · Mixed-Use