Top Flange Frame & Drainage Covers

Does your manhole need a top flange frame and drainage cover? You’ve come to the right place. Our custom top flange frame drainage covers are made of 3/8” thick ASTM-A36 carbon steel diamond plate, with 3/8″-thick gusset reinforcements stitch-welded underneath. Each drain slot is ½” wide. Our top flange frame drain covers feature a nonskid surface and are rated for H-20 wheel loading under 25 mph. The heavy-duty steel frame of our top flange drain grates are all welded construction; it’ll last you for years to come! Got any questions about our top flange frame and drainage covers? Want to request a custom quote? Please contact us today. VIEW SPEC SHEETCUSTOMIZE YOUR ORDERProduct Description DRAIN MANHOLE WITH TOP FLANGE FRAME ALL PURPOSE ASTM-A36 CARBON STEEL DRAIN GRATE MANHOLES DESIGNED TO BE INSTALLED IN CONCRETE APPLICATIONS. DIAMOND PLATE COVER WITH 1/2″ DRAIN SLOTS. RATED FOR H-20 SINGLE POINT WHEEL LOADING FOR VEHICLE TRAFFIC UNDER 25MPH. HEAVY DUTY FRAME WITH FLAT BAR SKIRT, ALL WELDED CONSTRUCTION. PAINTED BLACK FINISH. MADE IN THE USA. Choose cover diameter, cover style, and skirt length to create your custom selection. Diameter: Choose from 8″, 12″, 18″, 20″, 24″, 30″, 32″, 36″. Frame: Heavy-duty frame with flat bar skirt Choose frame depth of 2″, 3″ 4″ Finish: Painted Black Made in the USA Cover: A36 Carbon Steel Diamond Plate Cover Non skid surface H-20 wheel loading 1/2″ drain slots Finish: Painted Black Made in the USA Gallery #gallery-2 { margin: auto; } #gallery-2 .gallery-item { float: left; margin-top: 10px; text-align: center; width: 33%; } #gallery-2 img { border: 2px solid #cfcfcf; } #gallery-2 .gallery-caption { margin-left: 0; } /* see gallery_shortcode() in wp-includes/media.php */ VIEW SPEC SHEETCUSTOMIZE YOUR ORDERProduct Description DRAIN MANHOLE WITH TOP FLANGE FRAME ALL PURPOSE ASTM-A36 CARBON STEEL DRAIN GRATE MANHOLES DESIGNED TO BE INSTALLED IN CONCRETE APPLICATIONS. DIAMOND PLATE COVER WITH 1/2″ DRAIN SLOTS. RATED FOR H-20 SINGLE POINT WHEEL LOADING FOR VEHICLE TRAFFIC UNDER 25MPH. HEAVY DUTY FRAME WITH FLAT BAR SKIRT, ALL WELDED CONSTRUCTION. PAINTED BLACK FINISH. MADE IN THE USA. Choose cover diameter, cover style, and skirt length to create your custom selection. Diameter: Choose from 8″, 12″, 18″, 20″, 24″, 30″, 32″, 36″. Frame: Heavy-duty frame with flat bar skirt Choose frame depth of 2″, 3″ 4″ Finish: Painted Black Made in the USA Cover: A36 Carbon Steel Diamond Plate Cover Non skid surface H-20 wheel loading 1/2″ drain slots Finish: Painted Black Made in the USA Gallery #gallery-3 { margin: auto; } #gallery-3 .gallery-item { float: left; margin-top: 10px; text-align: center; width: 33%; } #gallery-3 img { border: 2px solid #cfcfcf; } #gallery-3 .gallery-caption { margin-left: 0; } /* see gallery_shortcode() in wp-includes/media.php */ Top Flange Frame Installed View Questions? Need A Solid Cover Instead? SHOP Round Top Flange FrameNeed A Solid Cover Instead? SHOP Round Top Flange FrameRelated Products Round Covers & Frames View ProductReplacement Drain Covers View ProductSquare Covers & Frames View Product Need something special? Request A Quote Need something special? Request A Quote