
Round Valley HS Mustang Gymnasium
A 560-seat gymnasium serving all three district campuses, with an 84′ × 50′ court and dual cross courts.



- Completed
- 2020
- Construction cost
- $4.5M
- Size
- 11,870 SF
- Sector
- Education
Sheet A-001 — Company overview
Schools, clinics and civic buildings delivered by a family-owned general contractor. We plan carefully, build with a local crew and finish to spec.



Sheet A-101 — Project index
Hover a project to preview it, or open its full project sheet for scope, specs and photos.

A 560-seat gymnasium serving all three district campuses, with an 84′ × 50′ court and dual cross courts.




Replaced the Incline Classrooms building and altered the administration building, with new electrical service, fire alarm, PA and ADA site work.




A new two-story, 13,800 SF district office building for Ukiah Unified.




A non-institutional residential setting for social rehabilitation, with bedrooms around a large dining room and kitchen and a backyard patio.




A 5,000 SF addition to the community health center.




An outdoor CTE learning center with two shade structures and two commercial greenhouses on new utilities and pads.




A new theater stage, with the West Wing connected to the new stage and auditorium.
A clinic gutted and rebuilt to OSHPD 3 standards, with a new floor plan, a 400 SF addition, new siding and site work.

New metal awnings and canopy roofing, replaced concrete paths, and accessibility upgrades to parking and the path of travel.
Sheet A-201 — Scope of services
Planning and cost estimating before ground breaks. Budget, constructability and schedule are worked out with the owner and design team while changes are still cheap.
Public works, education, healthcare, multi-family and residential projects across Mendocino, Lake and Sonoma Counties, built by our own carpenters and concrete masons with local subcontractors.
One contract and one team. We partner with designers from the first sketch so the building that gets drawn is one that fits the budget.
Sheet A-301 — Personnel


2nd generation
[Title] and Senior Project Manager. Casey grew up on his father's job sites and has 15+ years in construction.
| Rick Cupples | Founder & President · 50+ yrs |
|---|---|
| Greg W. · Ruben M. | Foremen |
| Drake S. · Jose M. · Eduardo M. | Journeyman carpenters & concrete masons |
Sheet A-401 — Timeline, 1976–2026
Rick Cupples opens Cupples Construction on a small loan from the Savings Bank of Mendocino County.
First commercial project, for the County of Mendocino.
Incorporated as Cupples and Sons Construction, Inc.
Cole Cupples founds Cupples Excavating.
Fifty years in. Still family-owned, still local.
Sheet A-501 — Request for proposal
If you're an owner, a district or a design team, tell us about the project and we'll respond with next steps. Or just give us a call.