100% Employee Owned  |  Address: 4703 Chester Drive, Elkhart, IN 46516  |  Call Us: (574) 264-0745

Top-Notch Engineering, Plan Review
and Inspection Services

At T.R. Arnold & Associates, we know buildings and we understand business. Our team of experts are equipped and ready to provide services that meet your needs. From plan review and approval to inspection services and modular recertification, our third-party engineering services help clients from coast to coast build equity, maximize profits and protect the people who live and work in their products every day.
Plan Review & Inspection Services

Your One Stop Shop Approach

T.R. Arnold & Associates, Inc. provides services to the Manufactured Shelter/Housing Industry since 1967. TRA’s services comprise of engineering approval, drafting, DAPIA, IPIA, third party modular plan review and inspection services.

Engineering + Calculations

We provide calculations that support your designs or assist with your design.

Plan Review + Approval

Thorough, quality plan review and approval service for every local, state and national organization.

Inspection Services

TRA as an In Plant Inspection Agency (IPIA), offers inspection services for all levels.

Modular Recertification

TRA offers a recertification process for existing commercial re-locatable modular buildings.

Drafting + Code Reviews

Whether generic or custom, TRA has the computer drafting capabilities to meet your needs.

Product Listing Service

We provide a method for getting your products accepted throughout the marketplace.

Energy Star

Certify your facility to produce Energy Star homes and reach energy-conscious consumers.

Utility Trailers

Leader in the inspection/listing of horse trailer and race car trailer conversions.

Credentials and Jurisdictions

We pride ourselves in staying abreast of industry trends and standards!


Accredited by the Standards Council of Canada to Perform Certifications for Manufactured Structures

Our accreditation as a Certification Body includes the labeling of Recreational Vehicles, Park Trailers, Manufactured (Mobile) Homes, Modular Homes and Commercial Modular structures, including Alberta Part 10 Man Camps.

TRA a été accrédité par le Conseil Canadien des Normes pour effectuer des certifications pour les structures fabriquées pour le Canada. Notre accréditation comme un organisme de certification comprend l’étiquetage des véhicules récréatifs, remorques Parc, maisons préfabriquées (mobiles), Maisons modulaires et structures modulaires de commerce, y compris l’Alberta Partie 10.

We are committed to providing a level of service which meets and, where possible, exceeds the expectations of all with whom we work.