Radius Considerations

Oblio 5″ radiused trench in cast bronze.

Iron Age can create custom cast trench grates in any design, on any radius you specify. Please keep in mind, however, that most custom work—such as grates on a radius—will require a new pattern for the casting which can run upwards of several thousand dollars.

To help you avoid pattern charges for your project, we’ve put together a list of our radius trench grates, organized by radius and width.  Take a look to see if we already have an existing pattern in our inventory that will work for you. If not, contact us and we will provide a quote for custom radius trench grates in your specified width, radius and arc length.

Iron Age Radius Trench Grates — Existing Sizes

RadiusProductPDF
10' and underGreek Key 5" Wide, 7'-0" CLR
10' and underInterlaken 5" Wide, 6'-0" CLR
10' and underInterlaken 5" Wide, 10'-0" CLR
10' and underInterlaken 5" Wide Heel Proof, 10'-3" CLR
10' and underInterlaken 6" Wide, 1'-9" CLR
10' and underInterlaken 6" Wide, 3'-2" CLR
10' and underInterlaken 6" Wide, 5'-7" CLR
10' and underInterlaken 6" Wide, 7'-0" CLR
10' and underInterlaken 6" Wide, 10'-4" CLR
10' and underInterlaken 11" Wide, 8-0" CLR
10' and underInterlaken 12" Wide, 9'-6"
10' and underLocust 6" Wide, 4'-9" CLR
10' and underLocust 8" Wide, 6'-0" CLR
10' and underLocust 12" Wide, 5'-0" CLR
10' and underLocust 12" Wide Heel Proof, 5'-7" CLR
10' and underOblio 5" Wide, 4'-0" CLR
10' and underOblio 5" Wide, 4'-9" CLR
10' and underOblio 5" Wide, 7'-9" CLR
10' and underOblio 9" Wide Heel Proof, 5'-0" CLR
10' and underOblio 12" Wide, 3'-6" CLR
10' and underRegular Joe 5" Wide, 4'-2" CLR
10' and underRegular Joe 5.38" Wide Heel Proof, 9'-6" CLR
10' and underRegular Joe 12" Wide, 9'-6" CLR
11' - 20'Acanthus 9" Wide, 17'-4" CLR
11' - 20'Argo 5" Wide, Heel Proof, 13'-9" CLR
11' - 20'Argo 5" Wide Heel Proof, 16'-11" CLR
11' - 20'Argo 5.5" Wide, Heel Proof, 20'-0" CLR
11' - 20'Interlaken 5" Wide, 18'-1" CLR
11' - 20'Interlaken 5" Wide Heel Proof, 13'-5" CLR
11' - 20'Janis 5" Wide, 13'-9" CLR
11' - 20'Janis 12" Wide, 16'-6" CLR
11' - 20'Locust 6" Wide, 16'-5" CLR
11' - 20'Locust 6" Wide, 20'-2" CLR
11' - 20'Locust 12" Wide, 13'-0" CLR
11' - 20'Locust 12" Wide, 20'-5" CLR
11' - 20'Oblio 5" Wide, 16'-6" CLR
11' - 20'Oblio 5" Wide, 20'-0" CLR
11' - 20'Oblio 6" Wide, 11'-3" CLR
11' - 20'Oblio 9" Wide, 11'-2.5" CLR
11' - 20'Oblio 9" Wide, 16'-6" CLR
11' - 20'Oblio 12" Wide, 13'-0" CLR
11' - 20'Oblio 12" Wide, 20'-0" CLR
11' - 20'Oblio 24" Wide, 14'-3" CLR
11' - 20'Que 3" Wide, 18'-0" CLR
11' - 20'Que 5" Wide Heel Proof, 12'-3" CLR
11' - 20'Que 5" Wide Heel Proof, 17'-7" CLR
11' - 20'Regular Joe 5.38" Wide Heel Proof, 12-1" CLR
11' - 20'Regular Joe 5.38" Wide Heel Proof, 15'-9" CLR
11' - 20'Regular Joe 12" Wide Heavy Duty, 16'-2" CLR
21' - 30'Argo 5" Wide Heel Proof, 22'-3" CLR
21' - 30'Argo 5" Wide Heel Proof, 27'-6" CLR
21' - 30'Interlaken 12" Wide, 30'-0" CLR
21' - 30'Interlaken 12" Wide Heel Proof, 30'-0" CLR
21' - 30'Janis 5" Wide, 23'-6" CLR
21' - 30'Locust 5" Wide, 25-2" CLR
21' - 30'Locust 12" Wide, 22'-0" CLR
21' - 30'Oblio 5" Wide, 27'-0" CLR
21' - 30'Oblio 8" Wide, 27'-10" CLR
21' - 30'Oblio 9" Wide, 25'-4" CLR
21' - 30'Oblio 12" Wide, 27'-0" CLR
21' - 30'Regular Joe 5.38" Wide Heel Proof, 21'-10" CLR
21' - 30'Tulie 12" Wide, 23'-9" CLR
21' - 30'Tulie 12" Wide, 30'-0" CLR
31' - 40'Interlaken 5" Wide, 36'-2" CLR
31' - 40'Interlaken 5" Wide Heel Proof, 37'-3" CLR
31' - 40'Regular Joe 5.38" Wide Heel Proof, 30'-6" CLR
31' - 40'Regular Joe 5.38" Wide Heel Proof, 35'-2" CLR
41' - 50'Interlaken 5" Wide, 47'-7" CLR
41' - 50'Locust 5" Wide, 50'-0" CLR
41' - 50'Oblio 5" Wide, 44'-0" CLR
41' - 50'Oblio 5.5" Wide Heel Proof, 44'-0" CLR
41' - 50'Que 8" Wide, 40'-6" CLR
41' - 50'Regular Joe 12" Wide, Heel Proof, Heavy Duty, 44'-8" CLR
51' - 60'Oblio 8" Wide, 53'-10" CLR
51' - 60'Oblio 9" Wide Heel Proof, 54'-1" CLR
51' - 60'Regular Joe 5" Wide Heel Proof, 54'-11" CLR
51' - 60'Regular Joe 5.38" Wide Heel Proof, 51'-0" CLR
51' - 60'Regular Joe 12" Wide, 54'-0" CLR
61' and overArgo 5" Wide Heel Proof, 61'-1" CLR
61' and overOblio 5" Wide, 65'-8" CLR
61' and overOblio 9" Wide, 79-4" CLR

Radius Considerations and Calculations

Planning a radius trench project can be challenging. We can provide assistance with design, sizing, frame selection and layout concerns, but first we need to know (and you need to consider) the following:

Example of radius embedment frame

Radius Frames

Custom grates require frames. Frames are made from angle bar, and when bolted or “wet set” into the top edge of the drain hole, they act as a shelf or bearing surface for the grate to sit on.

Iron Age frames are all made to order, and can accommodate many types of installation scenarios, Frame types include “embedment” for use with new concrete; “stand-off” for use with a variety of paver options; and “retro” for use with existing slabs. Please take a look at the “Frame Types” below. If you have questions, see “Frames” in our “FAQ’s” under the RESOURCES tab, or contact us. We can help you determine which frame type(s) will work best for your particular installation.