The Trellis Center’s mission is to help our participants increase their independence in a job and in their lives through participation in a variety of vocational, recreational and community engagement activities.

We strive to create environments where adults with developmental disabilities are understood, valued and given opportunities to grow individually as well as contribute to their community.

About The Trellis Center

The Trellis Center is a non-profit 501(c)(3) charitable organization that fosters a sense of purpose and belonging in teens and adults with developmental disabilities. The Trellis Center was created by a group of concerned parents who recognized the need for a creative, innovative, community-based program where adults with developmental disabilities are able to continue to learn, grow, have social relationships, and work toward independence. Staffed with highly experienced employees originally from across the country, the Trellis Center provides dynamic and integrated programming for individuals with any level of support need. Just as typical individuals, those with developmental disabilities need opportunities to continue to learn social, communication, leisure, recreation and employment skills. The Trellis Center will challenge and support each participant as they acquire these functional skills with the clear objective of continually improving their quality of life and developing increased independence so the individual can more adequately support themselves.

Program Hours

The Trellis Center is open Monday through Friday year-round excluding major holidays or inclement weather. Trellis follows the Ellensburg and Kittitas School Districts for closures and delays due to snow. You can check the school websites or listen to the local radio for these notices.

Transitional Program hours are from 9:00am – 11:00am. The program runs according to the school year from mid-September to mid-June.

On a typical day the Vocational Program will operate for 3 – 4 hours and the Recreational Program will operate 2 – 3 hours. This balance will fluctuate according to season.

Billing and Fees Policy

The Trellis Center’s Programs are accessible to participants through the use of a student’s IEP funds, as a private pay service, or through the use of a participant’s Respite in the Community funds.

For private pay funding, invoices are sent at the beginning of each month and must be paid by the 15th of each month. The current rate is $18.16 per hour.

Respite hours must be approved by the DDA case manager. Invoices for Respite funding are sent to the parent / guardian and the DDA case manager. If you are interested in utilizing Community Respite funding, please provide the Trellis Center with the name and email address of your case manager.

Application Process

Participants must be at least fifteen years of age to attend the Transitional Program and eighteen years of age to attend the Adult Vocational and/or Recreational Program(s). If you or someone you know is interested in attending the Trellis Center and want to request the current hourly rate, program fees and registration forms or are interested in scheduling an in-person tour of the Center and its programs, please contact our Program Director,
Heather Odenthal, at

To begin the official application process, call our main office at (509) 968-4040 or email to schedule a tour. We ask that both the parent / guardian and the prospective member attend the tour. Print and complete the Application / Policy Forms and bring the completed forms to the scheduled tour. If you have already completed a tour, application materials may be emailed to, brought to the Trellis Center in person, or may mailed to:

Trellis Center
300 Bare Road
Ellensburg, WA 98926

A complete application packet includes the following items:

  • Application
  • Financial Agreement
  • Consent to be Photographed
  • Consent to Transport
  • Consent for Emergency Medical Treatment
  • Cell Phone and Electronics Policy