Precision-Engineered Riser Rings for Reliable Infrastructure Solutions
Bass & Hays offers a comprehensive selection of American-made riser solutions, including standard and custom riser rings, steel risers, concrete grade rings, and innovative Infra-Riser® manhole riser rings. Designed for a perfect fit and long-lasting performance, our products are available in all standard sizes and heights with specific traffic ratings to meet the demands of any environment. For unique requirements, we provide custom-sized risers and optional set screws for secure installation. Trust Bass & Hays for high-quality, flexible, and precise riser solutions that elevate your infrastructure projects and keep them on schedule.
Contact Bass & Hays or call us at 1-800-258-2278 toll free or 972-263-1360 DFW Metro. Check stock, request technical data, drawings, submittals, BABA, AIS or LEED documentations and certifications, or to place orders.
Bass & Hays’ precision-fit steel riser rings raise the cover from the lid seat inside the manhole frame. Made from ASTM A36 welded and coated carbon steel, H-20 traffic rated, and proudly American-made. Each ring features secure set screws and optional adjusting bands. Standard sizes fit 300-24®, 400-24®, VRM-30®, 1225-40®, and V-1342 series.
Need a custom size? Use our Steel Riser Ring Custom Spec’s Sheet for a perfect fit. We can build a custom steel riser to fit ANY dimension Bass & Hays product as well as any other manufacturer’s product dimensions.
Contact Bass & Hays or call us at 1-800-258-2278 toll free or 972-263-1360 DFW Metro. Check stock, request technical data, drawings, submittals, BABA, AIS or LEED documentations and certifications, or to place orders.
Standard Stock Items Available-
300-24® series (3 set screws) 1X, 1.5X, 2X, 2.5X, 3X, 4X, 6X
400-24® series (6 set screws) 1X, 1.5X, 2X, 2.75X, 3X, 4X, 6X
VRM-30® series (6 set screws) 1X, 1.5X, 2X, 2.5X, 3X, 4X, 6X
V-1342 series (3 set screws) 1X, 1.5X, 2X, 2.5X, 3X
Raise your manhole rings to grade from underneath with Bass & Hays’ reinforced concrete grade rings. Proudly made in the USA, these durable rings are H-20 traffic rated when used with a corresponding H-20 rated manhole ring properly installed in reinforced concrete. While we stock standard sizes, non-standard dimensions may be available through special order to meet your project’s unique requirements, ensuring a reliable and precise fit. To inquire about special sizes or non-standard items please contact one of our knowledgeable sales team members today!
Contact Bass & Hays or call us at 1-800-258-2278 toll free or 972-263-1360 DFW Metro. Check stock, request technical data, drawings, submittals, BABA, AIS or LEED documentations and certifications, or to place orders.
Standard sizes available-
24″ diameter– 2″ 3″ 4″ & 6″ heights
30″ diameter– 2″ & 3″ heights
Bass & Hays offers a standard 3-inch tall cast iron riser ring designed to fit our 400-24® and 380-24R® manholes. Proudly made in the USA from durable, uncoated ASTM A48 Gray Iron, this stock item ensures quick delivery for your project needs. It is H-20 traffic rated when properly installed with a corresponding traffic-rated ring and cover in reinforced concrete, providing a reliable and robust solution. For projects requiring different dimensions, standard-sized steel riser rings are also available as stock items, with other sizes available by special order.
Contact Bass & Hays or call us at 1-800-258-2278 toll free or 972-263-1360 DFW Metro. Check stock, request technical data, drawings, submittals, BABA, AIS or LEED documentations and certifications, or to place orders.
300-24® 2.5x standard cast iron 2-1/2″ tall riser ring is designed for the 300-24® series manholes and is a stock item, ensuring quick availability. Made from uncoated ASTM A48 Gray Iron CL35B or better and compliant with AASHTO standards, this riser ring is H-20 traffic rated when paired with an H-20 traffic rated ring, cover, or grate properly installed in reinforced concrete. While standard-size steel riser rings are readily available as stock items, other sizes and styles can be ordered for special requirements, offering flexibility for various applications.
Contact Bass & Hays or call us at 1-800-258-2278 toll free or 972-263-1360 DFW Metro. Check stock, request technical data, drawings, submittals, BABA, AIS or LEED documentations and certifications, or to place orders.
Streamline your manhole adjustments with the American-made EJ® INFRA-RISER® system. This innovative solution raises rings from underneath, creating a protective cushioned barrier between the concrete and the metal frame. As an H-20 rated system, INFRA-RISER® provides a durable, reliable, and high-performance option for leveling municipal infrastructure. Choose INFRA-RISER® for a long-lasting and efficient manhole adjustment solution. Bass & Hays® is an authorized EJ® master distributor.
Contact Bass & Hays or call us at 1-800-258-2278 toll free or 972-263-1360 DFW Metro. Check stock, request technical data, drawings, submittals, BABA, AIS or LEED documentations and certifications, or to place orders.
The 300-24® 4x standard cast iron 4″ tall riser ring is a durable and reliable solution for 300-24® series manholes, available as a stock item for quick delivery. Manufactured in the USA from uncoated ASTM A48 Gray Iron CL35B or better and meeting AASHTO M306 standards, this riser ring is H-20 traffic rated when paired with an H-20 traffic rated ring, cover, or grate properly installed in reinforced concrete. Standard-size steel riser rings are readily available, with additional sizes and styles offered for special orders, ensuring versatility for various applications.
Contact Bass & Hays or call us at 1-800-258-2278 toll free or 972-263-1360 DFW Metro. Check stock, request technical data, drawings, submittals, BABA, AIS or LEED documentations and certifications, or to place orders.
The EJ® SELFLEVEL® Access Assembly is a highly engineered infrastructure solution. Unlike traditional manhole units, its unique design allows for a range of movement that keeps the SELFLEVEL perfectly aligned with the finished road surface. This unit works for both retrofit and new installations. Once installed, the unit will continue to move with the road surface. The road surface aids in absorption of traffic vibration and shock, further protecting the life of your infrastructure and critical underground structures. SELFLEVEL has a range of motion of up to a 5° tip angle while still moving with the surface. This design helps eliminate frost heave/uplift, manhole structure settling, site deterioration, and pavement cracking. It also provides improved ride quality to meet smooth street initiatives. For reliable, long-lasting results on sloped or varied depths, SELFLEVEL® offers a superior solution. Bass & Hays® is an authorized EJ® master distributor.
Contact Bass & Hays or call us at 1-800-258-2278 toll free or 972-263-1360 DFW Metro. Check stock, request technical data, drawings, submittals, BABA, AIS or LEED documentations and certifications, or to place orders.
The 300-24® 6x standard cast iron 6″ tall riser ring is a high-quality, USA-made solution for 300-24® series manholes, available as a stock item for fast fulfillment. Crafted from uncoated ASTM A48 Gray Iron CL35B or better and compliant with AASHTO M306 standards, this riser ring is H-20 traffic rated when used with an H-20 traffic rated ring, cover, or grate properly installed in reinforced concrete. Standard-size steel riser rings are always in stock, with additional sizes and styles available for special orders, offering flexibility to meet diverse project needs.
Contact Bass & Hays or call us at 1-800-258-2278 toll free or 972-263-1360 DFW Metro. Check stock, request technical data, drawings, submittals, BABA, AIS or LEED documentations and certifications, or to place orders.