We got you covered™ with custom steel risers, concrete grade rings, & Infra-Riser® manhole riser rings. Check individual items for traffic ratings. All standard sizes and heights/depths are stock items. Custom sizes available on special orders, and set screws are available by request on special orders. Made in USA. LEED® certifications available on request. Please use the Contact Form or call us to request info & submittal sheets. 1-800-258-2278 Toll Free or (972) 263-1360 DFW Local.