The library launched its new trailer to the public on Monday, spruiking its new design and disability access as a big leap from its initial basic design.

As a critical piece of infrastructure for regional communities, chairwoman for the RRL councillor Yvonne Braid said it will ensure borrowers continue to receive the same quality services any normal library provides.

Executive director of the RRL Robert Knight said the trailer design was subject to a great deal of scrutiny to ensure the best outcome.

"It was our objective to provide a flexible, dynamic and accessible space that has the capacity to cater for changing usage patterns over its anticipated 15-year lifespan," Mr Knight said.

"Even though we can't easily predict what library service provision may look like in 2028, the new mobile library has definitely been designed with the future in mind."

The new trailer features a flexible interior floor plan, characterised by one large extendable pod to maximise floor space and cater for changing demands.

People with a disability will find access easier with a flat floor design and a separate disabled entrance.

The replacement project was funded through grants from the NSW government's Library Development Program and the federal government's Department of Families, Housing, Community Services and Indigenous Affairs Accessible Communities grant program.

Further launches will be held in Ardlethan, Walla Walla and Lockhart.

The mobile library visits 28 communities on a weekly and fortnightly basis.