Building custom trailers since 1979
(209) 667-4555 |

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Operating Hours

Mon-Thurs 7am-4:30pm Fri 7am – 11am

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We are committed to delivering excellence

Be the reference for developing and unlocking brand potential in the World

For us, success is more than mere statistics. It is steered by our passion for excellence. Through each of our companies, we set out to define the region’s industry practices and create market benchmarks of international standards. We believe in long term business relationships that are based on mutual goals, ethical business practices and the single minded pursuit of delivering the extraordinary.

Quality Driven

We are committed to building our custom trailers and equipment to the highest-quality standard delivering durable and long-lasting products to our customers.

Customer Focused

We are focused on listening to our customers and incorporating their input into our designs to help us manufacture sleek and functional trailers directly relevant to our Ag Business clientele.


With over 35 years of experience, we have perfected our design, welding, and build techniques which we apply directly to building custom trailers tailor-made to the needs of our customers.

Family Owned

Glenn Engineering is a family owned company that places great value on quality workmanship, with a dedicated, tightly-integrated crew (most have been with us for years), serving farmers and Ag companies here in the valley and throughout the US.


Glenn Engineering strives to listen to the end user to incorporate their input into the overall design process, recognizing this focus on design is key in the development of trailers and equipment, and ultimate success of the final product.

All Projects
Equipment Trailers
Flat Bed
Container Chassis
  • Equipment Trailer
  • Flatbeds
  • Equipment Trailer
  • Equipment Trailer
  • Container Chassis
  • Container Chassis
  • Flat Bed
  • Container Chassis
  • Fixed Axle Tilt Trailer (FATT)