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