Fiberglass Domes Current sizes available in molds are: 18ft, 20ft,22ft,24ft and 30ft diameter.
(click here for details/specs) FRP Section 434234
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| Deer Island, Boston, MA | Carson, IA | New Castle, CO |
Fiberglass Domes Current sizes available in molds are: 18ft, 20ft,22ft,24ft and 30ft diameter.
(click here for details/specs) FRP Section 434234
![]() | ![]() | ![]() |
| Deer Island, Boston, MA | Carson, IA | New Castle, CO |

Woman-Owned
Acquired by McGuire Johns Holdings & Linda Peddle in December 2025.
ISO 9001: Compliant
Committed to customer satisfaction and continual improvement.
Founded in 1975
50+ years serving industrial and municipal clients across North America.
Made in USA
Centrally located outside Chicago for fast U.S. shipping with 1–2-week turnaround on most custom-made orders.
RPS Engineering
1300 Crispin Drive
Elgin, IL 60123
Phone: 847-931-1950
Fax: 847-931-4274
Conveyor covers: coversales@rpsengineering.com
Wastewater:
gina-wwtp@rpsengineering.com
Roofing & siding: custservice@rpsengineering.com
