Heavy Duty Gray Iron USF 6516-2 Frame Rails 1.5″ x 48″ (Set of 2)

SKU: USF 6516-2

Grate rail sold as two 48″ pieces


Cast iron frames provide an ideal design option for poured trench drain systems by providing a preformed ledge for grates to sit on. The 1.5″H x 48″L frame holds a 1.5″ thick grate (grates not included). The USF 6516 frame has low profile anchors built in to help lock it securely into concrete during frame installation.

Purchase grates separately.

NOTE: Due to the weight of this product, expect higher than normal shipping costs. Contact Customer service to explore possible alternatives (ground vs. freight).

Price shown is for 2 frame bars in 4ft sections.

Load class ratings for entire systems will always be determined by the lowest class within the system. For example, if the channel is rated as a C and the grate is rated as a D, the overall system will be rated as load class C. The same is true should the channel be rated as load class C and the grates are rated as load class A; the system as a whole would be rated as load class A.

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East Jordan, TDS


Frame and Grate

Grate Height

1 1/2 inch

Product Type


Grate Material


Animal and Zoo, Commercial, Driveway Drainage, Greenhouse, Industrial, Municipal, Patio, Residential, Transportation


Cast Iron Frame

CSI Code 05 53 00, 05 56 00, 22 00 00, 22 14 00, 22 14 26, 22 14 26.19, 33 40 00, 33 44 16, 33 46 13