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Home//Municipal//Engineering Tools & Calculators//Neenah Grate Information

Neenah Grate Information

The following table lists the Neenah catalog designs furnished with grates. In addition to the free opening areas which are necessary to determine the discharge, the tables also show the grate type or style which are shown below for easy identification.

Special notes on Neenah grate types:

• Type K indicates "Special" grate designs and is not among standard types as illustrated.
• Inlet grate type A or C can vary depending on how it is installed. If grate is installed with long side of openings perpendicular to flow, it is a type A grate, and if grate is installed with long side of openings parallel to flow, it is a type C grate.
• Inlet grate type B or D can vary depending on how it is installed. If grate is installed with long slots perpendicular to flow, it is a type B grate, and if grate installed with long slots parallel to flow, it is a type D grate.

Having Trouble?

For additional information regarding Neenah Inlet Grate Capacities, please contact Steven Akkala P.E., at (920) 729.3653 or email at sakkala@nfco.com.

Jump to:

• R-2XXX castings
• R-3XXX castings
• R-4XXX castings
• Trench castings
• R-5XXX castings
• R-6XXX castings

R-1xxx Castings

Catalog Number	Grate Type	Square Feet Open	Weir Perimeter Lineal Feet
R-1792-AG	G	0.2	2.7
R-1792-BG	G	0.3	3.5
R-1792-CG	G	0.5	4.3
R-1792-DG	G	0.7	4.8
R-1792-EG	G	1.0	5.8
R-1792-FG	G	1.7	6.6
R-1792-GG	G	2.0	7.4
R-1792-HG	G	2.7	9.0
R-1792-JG	G	3.7	10.5
R-1792-KG	G	4.8	12.1
R-1878-A1G	A or C	0.5	4.6
R-1878-A2G	A or C	0.8	6.0
R-1878-A3G	A or C	1.0	6.7
R-1878-A4G	A or C	1.1	7.3
R-1878-A5G	A or C	1.8	7.8
R-1878-A6G	A or C	2.7	8.6
R-1878-A7G	A or C	2.1	9.2
R-1878-A8G	A or C	2.3	9.8
R-1878-A9G	A or C	2.5	10.6
R-1878-A10G	A or C	3.0	12.3
R-1878-B1G	A	0.6	5.7
R-1878-B2G	A	0.9	6.5
R-1878-B3G	A	1.2	7.5
R-1878-B4G	A	2.1	8.5
R-1878-B5G	A	2.5	9.6
R-1878-B6G	C	2.6	9.5
R-1878-B7G	A	2.6	10.5
R-1878-B8G	A	3.7	12.6
R-1878-B9G	C	3.3	11.6
R-1878-B10G	C	4.9	13.5
R-1878-B11G	A	5.0	14.7
R-1879-A1G	A or C	0.4	4.6
R-1879-A2G	A or C	0.8	6.0
R-1879-A3G	A or C	1.2	6.7
R-1879-A4G	A or C	1.4	7.3
R-1879-A5G	A or C	1.9	7.8
R-1879-A6G	A or C	2.0	8.6
R-1879-A7G	A or C	1.7	9.2
R-1879-A8G	A or C	2.2	9.8
R-1879-A9G	A or C	2.8	10.6
R-1879-A10G	A or C	3.7	12.3
R-1879-B1G	A	0.6	5.7
R-1879-B2G	C	0.9	6.5
R-1879-B3G	C	1.0	7.5
R-1879-B4G	A	1.4	8.5
R-1879-B5G	A	1.9	9.6
R-1879-B6G	A	2.4	9.5
R-1879-B7G	A	3.0	10.6
R-1879-B8G	A	3.2	12.6
R-1879-B9G	A	3.2	11.6
R-1879-B10G	C	4.2	13.5
R-1881-A	Q	0.2	4.0
R-1881-B	Q	0.8	8.0
R-1881-C	Q	1.0	8.6
R-1881-D	P	0.2	5.3
R-1881-E	P	0.2	5.7
R-1881-F	P	0.3	5.9
R-1881-G	P	0.3	5.9
R-1881-H	P	0.3	6.0
R-1881-J	P	0.3	6.3
R-1881-K	P	0.4	6.8
R-1881-L	P	0.5	7.8
R-1881-M	Q	0.9	8.3
R-1881-N	Q	0.9	8.3
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R-2XXX Castings

Catalog Number	Grate Type	Square Feet Open	Weir Perimeter Lineal Feet
R-2014	C	1.1	6.0
R-2014	E	1.3	6.0
R-2015	D	1.0	6.0
R-2015	C	1.1	6.0
R-2015	G	1.2	6.0
R-2030	D	1.1	6.0
R-2030	C	1.1	6.0
R-2031	D	1.1	6.0
R-2031	E	1.1	6.0
R-2040	D	0.9	6.0
R-2040	C	1.1	6.0
R-2040	E	1.1	6.0
R-2040	F	0.7	6.0
R-2050	D	0.9	6.0
R-2050	C	1.1	6.0
R-2050	E	1.1	6.0
R-2050	F	0.7	6.0
R-2060	A	1.1	6.0
R-2060	B	1.2	6.0
R-2060	C	1.1	6.0
R-2060	E	1.1	6.0
R-2070	D	0.9	6.0
R-2070	B	1.2	6.0
R-2070	E	1.1	6.0
R-2077	B	1.2	6.0
R-2077	C	1.1	6.0
R-2077	D	1.0	6.0
R-2077	E	1.1	6.0
R-2077	F	0.6	6.0
R-2080	D	1.0	5.9
R-2080	C	1.2	5.9
R-2090	A	1.1	5.0
R-2090	B	1.2	5.8
R-2090	C	1.2	5.8
R-2090	D	1.0	5.8
R-2090	E	1.1	5.8
R-2090	G	1.0	5.8
R-2100	A	1.1	5.8
R-2100	C	1.1	5.8
R-2100	E	1.1	5.8
R-2100	F	0.6	5.8
R-2110	A	1.1	5.8
R-2110	E	1.1	5.8
R-2112	A	1.1	5.8
R-2112	B	1.2	5.8
R-2112	C	1.1	5.8
R-2112	E	1.1	5.8
R-2112	F	0.6	5.8
R-2112	G	0.6	5.8
R-2120	A	1.1	5.8
R-2120	C	1.1	5.8
R-2120	F	0.6	5.8
R-2120	G	1.1	5.8
R-2250	G	3.0	9.9
R-2251	G	2.9	9.4
R-2255	C	1.4	8.4
R-2255	G	1.9	8.4
R-2270	G	1.9	8.4
R-2275	G	1.9	8.4
R-2290	K	1.2	7.6
R-2290-A	K	1.2	7.6
R-2290-B	K	1.0	7.5
R-2293	G	1.6	7.2
R-2296	B	1.2	6.7
R-2296	F	1.2	6.7
R-2297	B	1.2	6.7
R-2297	F	1.2	6.7
R-2298	B	1.2	6.7
R-2298	F	1.2	6.7
R-2299	B	1.2	6.7
R-2299	F	1.2	6.7
R-2300	G	1.2	6.8
R-2300	C	1.6	6.8
R-2370	B	1.2	6.8
R-2370	F	1.3	6.8
R-2370	A	1.1	6.8
R-2370	G	1.2	6.8
R-2371	G	1.2	6.7
R-2390	G	1.4	6.7
R-2390	C	1.5	6.7
R-2392	C	1.4	6.7
R-2392	G	1.4	6.7
R-2394	G	1.2	6.8
R-2395-1	G	1.6	6.6
R-2398	G	1.4	6.7
R-2401	G	1.4	6.8
R-2401	C	1.6	6.8
R-2401-A	G	1.2	6.5
R-2401-B	E	0.9	6.2
R-2402	G	0.7	6.5
R-2402	C	1.1	6.5
R-2404	G	1.1	6.7
R-2405	A	1.0	6.5
R-2405	C	1.6	6.5
R-2410	K	0.9	6.1
R-2411-A	G	0.7	6.6
R-2412-A	G	1.0	6.2
R-2412-A1	E	1.0	6.3
R-2412-A2	G	0.7	6.5
R-2412-A3	C	1.1	6.3
R-2412-A3	E	1.0	6.3
R-2412-A4	C	1.0	6.5
R-2412-A5	K	0.8	6.3
R-2412-A6	G	1.1	6.3
R-2414	D	1.0	6.1
R-2418	G	1.0	6.2
R-2418-A	K	1.0	6.3
R-2420-A	A	1.0	6.4
R-2420-B	G	1.1	5.9
R-2421-A	A	1.0	6.1
R-2422-A	K	1.0	6.2
R-2422-C	G	1.0	6.2
R-2423	G	1.0	6.2
R-2424-A	G	0.9	5.9
R-2427	D	1.0	6.0
R-2427-A	G	1.0	6.2
R-2428	D	1.0	6.0
R-2428	C	1.1	6.0
R-2428	F	0.6	6.0
R-2429	D	1.0	5.9
R-2429	E	1.3	5.9
R-2429	G	1.2	5.9
R-2435	G	0.9	5.8
R-2437	D	1.0	5.9
R-2437	E	1.3	5.9
R-2437-B	G	0.9	5.8
R-2438	D	1.0	5.9
R-2438	E	1.3	5.9
R-2453	K	0.8	6.2
R-2461-A	A	1.1	5.8
R-2461-A	B	1.2	5.8
R-2461-A	C	1.1	5.8
R-2464	D	1.0	6.0
R-2466-A	B	1.2	5.8
R-2466-A	E	1.1	5.8
R-2467	C	1.1	5.9
R-2467	D	0.9	5.9
R-2471	D	1.0	5.9
R-2471-B	D	1.0	5.9
R-2474	A	1.1	5.7
R-2474	G	1.2	5.7
R-2475	A	1.1	5.8
R-2481	A	1.1	5.7
R-2494	G	0.8	5.1
R-2496	G	0.6	4.7
R-2498	G	0.4	4.1
R-2498-A	G	0.4	4.1
R-2498-B	G	0.4	4.1
R-2499	G	0.2	3.1
R-2500	G	0.9	6.2
R-2501	G	1.1	6.8
R-2502	D	1.0	6.0
R-2502	G	1.3	6.0
R-2504	G	1.3	6.0
R-2504	D	1.0	6.0
R-2510	C	1.3	5.8
R-2510-1	G	0.4	4.1
R-2510-2	G	1.6	7.2
R-2510-A	C	1.1	5.8
R-2525-A	E	0.2	3.1
R-2525-C	G	0.4	4.1
R-2525-D	G	0.4	4.1
R-2525-E	E	0.6	4.7
R-2525-F	G	0.8	5.4
R-2525-G	G	0.8	5.1
R-2533	A	1.1	5.8
R-2534	C	0.9	6.0
R-2535	C	1.1	5.8
R-2535-A	C	1.1	5.8
R-2540	D	1.1	5.9
R-2540-A	D	1.1	5.9
R-2545	K	0.4	4.7
R-2546	K	0.4	3.5
R-2548	V	0.8	6.7
R-2549	D	1.0	6.0
R-2552	K	0.8	6.2
R-2552-A	K	0.8	6.2
R-2552-B	K	0.8	6.2
R-2553	G	1.1	6.3
R-2554	G	1.1	6.3
R-2555	G	1.1	6.3
R-2556	G	1.5	6.7
R-2556-A	F	1.4	6.8
R-2557	G	2.0	8.4
R-2558	G	2.0	8.4
R-2559	F	1.4	6.8
R-2560-A	Beehive	0.3	3.1
R-2560-B	Beehive	0.2	4.1
R-2560-C	Beehive	0.7	4.7
R-2560-C1	Beehive	0.7	5.8
R-2560-C2	Beehive	0.7	5.8
R-2560-D	Beehive	1.0	5.1
R-2560-D1	Beehive	1.2	5.8
R-2560-D2	Beehive	1.2	5.8
R-2560-D3	Beehive	1.2	5.8
R-2560-D5	Beehive	1.0	5.1
R-2560-D6	Beehive	1.0	5.1
R-2560-D7	Beehive	1.3	5.3
R-2560-D8	Beehive	1.3	5.3
R-2560-E	Beehive	1.2	6.0
R-2560-EA	Beehive	1.2	6.7
R-2560-EB	Beehive	1.8	6.7
R-2560-E1	Beehive	1.4	6.7
R-2560-E2	Beehive	2.0	6.7
R-2560-E5	Beehive	1.2	6.7
R-2560-E6	Beehive	1.8	6.7
R-2560-E7	Beehive	1.2	6.7
R-2560-E8	Beehive	1.8	6.7
R-2560-E9	Beehive	1.2	6.7
R-2560-E10	Beehive	1.8	6.7
R-2560-G	Beehive	1.5	8.4
R-2561	Beehive	2.0	6.7
R-2561-A	Beehive	1.2	6.7
R-2563	Beehive	1.2	5.8
R-2564	Beehive	1.0	5.8
R-2565-A	G	0.9	5.5
R-2565-C	G	1.2	6.0
R-2565-E	G	1.8	7.1
R-2565-F	G	1.8	7.1
R-2565-G	G	1.7	7.1
R-2565-H	G	1.2	7.6
R-2565-J	G	1.8	8.5
R-2569	A	0.6	5.3
R-2570	G	0.8	5.4
R-2571-A	F	0.9	5.8
R-2571-B	F	1.1	5.8
R-2571-C	F	0.9	5.8
R-2571-D	F	0.7	6.0
R-2571-D1	F	1.2	6.7
R-2571-D2	F	1.2	6.7
R-2571-D3	F	1.2	6.7
R-2571-D4	F	1.2	6.7
R-2571-E	F	1.2	6.8
R-2572	F	1.3	6.7
R-2573	F	1.3	6.7
R-2574	B	0.9	6.2
R-2577	B	1.0	6.7
R-2578	C	1.0	6.0
R-2579	B	1.3	5.8
R-2580-A1	C	1.1	8.4
R-2580-A	G	1.9	8.4
R-2580-C	G	3.0	9.9
R-2586-A	E	0.4	3.8
R-2586-B	G	0.5	4.2
R-2586-C	E	0.6	4.7
R-2586-D	G	0.8	5.2
R-2586-E	G	0.8	5.1
R-2586-F	G	0.8	5.4
R-2586-G	G	1.0	5.8
R-2586-H	E	1.3	6.0
R-2586-K	G	1.3	6.3
R-2586-M	G	1.8	7.0
R-2586-N	G	1.7	7.9
R-2586-O	G	1.9	8.4
R-2588-A	G	1.1	5.8
R-2588-B	G	1.0	6.5
R-2588-C	G	1.9	7.6
R-2595-A	D	1.0	6.0
R-2600	K	1.1	6.8
R-2650	G	1.1	6.7
R-2668	C	0.9	6.2
R-2680	G	1.1	6.2
R-2682	A	1.5	7.3
R-2750	Q	1.8	8.3
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R-3xxx Castings

Catalog Number	Grate Type	Square Feet Open	Weir Perimeter Lineal Feet
R-3010	S	1.0	4.6
R-3010	A	1.0	4.6
R-3010	L	0.9	4.6
R-3010	Diagonal	1.1	4.6
R-3010	D	1.3	4.6
R-3015	L	0.9	4.6
R-3015	Diagonal	1.1	4.6
R-3030	A	1.0	4.6
R-3030	D	1.3	4.6
R-3030	Diagonal	1.1	4.6
R-3030	L	0.9	4.6
R-3031-B	S	0.8	4.8
R-3032-B	S	0.8	4.8
R-3033-B	S	0.8	4.8
R-3034-B	S	1.1	4.8
R-3035-A	S	1.1	4.8
R-3036-B	S	1.1	7.4
R-3037-A	S	1.6	5.8
R-3038-A	S	1.5	4.8
R-3039-A	S	1.5	5.0
R-3065	Diagonal	0.9	4.9
R-3065-L	L	0.8	4.5
R-3065-V	V	1.3	4.5
R-3066	Diagonal	1.4	5.3
R-3067	Diagonal	1.9	5.9
R-3067-C	C	2.1	5.8
R-3067-L	L	2.1	5.9
R-3067-V	V	2.4	5.9
R-3070	A	0.9	4.5
R-3070	D	1.0	4.5
R-3070	L	0.8	4.5
R-3070	Diagonal	0.9	4.5
R-3070	V	1.3	4.5
R-3075	Diagonal	0.9	4.5
R-3075-L	L	0.8	4.5
R-3075-V	V	1.3	4.5
R-3076	V	1.5	5.4
R-3077	V	3.0	12.9
R-3077-L	V	1.5	7.9
R-3077-R	V	1.5	7.9
R-3078	V	1.5	2.5
R-3079	L	1.4	5.5
R-3157-1	A	1.1	5.2
R-3157-2	V	1.5	5.2
R-3157-A	K	2.1	6.0
R-3159-A	S	1.3	4.9
R-3161	S	1.3	4.7
R-3165	A	1.4	4.5
R-3169	B	0.7	3.5
R-3170	B	0.7	3.5
R-3203-A	A or C	1.0	6.6
R-3203-B	A or C	1.0	6.6
R-3203-C	A or C	1.0	6.6
R-3205	K	0.9	6.5
R-3210-A	C	1.5	8.0
R-3210-L	L	1.5	7.9
R-3210-Q	Q	0.8	8.0
R-3220	C	1.5	8.0
R-3220-L	L	1.5	6.0
R-3222-C	C	1.4	5.6
R-3222-LA	L	1.0	5.6
R-3222-1A	L	1.0	7.6
R-3227	D	2.3	8.5
R-3227-C	C	1.9	8.5
R-3227-D	Diagonal	2.3	8.5
R-3228-BD	Diagonal	2.3	6.0
R-3228-G	D	2.2	6.0
R-3228-H	C	1.9	6.0
R-3228-J	D	2.2	6.0
R-3228-K	C	1.9	6.0
R-3229-A	C	1.5	8.0
R-3229-L	L	1.5	6.0
R-3233	A	2.8	6.4
R-3233-D	A	2.8	6.4
R-3234-B1	C	1.3	5.3
R-3235	C	0.7	4.4
R-3236	C	1.2	5.0
R-3236-1	C	1.2	5.0
R-3236-A	C	1.2	4.9
R-3236-B	C	1.2	4.9
R-3237	C	1.3	4.9
R-3237-1	C	1.3	4.9
R-3237-A	C	1.3	4.9
R-3237-B	C	1.3	4.9
R-3238	C	1.3	7.4
R-3246	C	1.6	5.8
R-3246-A	C	2.2	6.9
R-3246-A	Diagonal	2.7	7.0
R-3246-AL	L	3.1	7.0
R-3246-CC	C	1.8	5.9
R-3246-CL	L	1.6	5.9
R-3246-E	C	1.8	5.9
R-3246-F	C	1.8	5.9
R-3247-2D	Diagonal	3.8	12.3
R-3249-F	S	1.1	4.7
R-3250-A	K	1.5	6.7
R-3250-1	K	1.5	7.8
R-3250-B	K	1.4	7.1
R-3250-C	K	1.4	7.1
R-3250-BL	L	1.0	7.1
R-3250-BSP	V	1.3	7.1
R-3250-CL	L	1.0	7.1
R-3250-BV	V	1.3	7.1
R-3250-CV	V	1.3	7.1
R-3250-DV	V	1.3	7.1
R-3251	C	1.0	6.3
R-3252-A	V	1.3	5.7
R-3260-A	A	3.2	8.0
R-3261-A1	C	1.1	5.0
R-3266	V	0.6	7.3
R-3270	A	0.9	4.4
R-3273-A	C	1.2	4.7
R-3274	C	1.2	4.9
R-3274-A	C	1.4	4.9
R-3274-B	C	1.4	4.9
R-3275	A	1.0	4.6
R-3278-A	C	1.2	4.6
R-3278-AL	L	0.7	4.6
R-3280-A	C	1.8	5.5
R-3280-B	C	1.2	4.5
R-3281-A	C	1.0	4.3
R-3281-AL	L	0.5	4.3
R-3286-8V	V	0.7	4.4
R-3287-5	V	3.6	10.6
R-3287-10V	V	2.1	5.5
R-3287-15	V	3.6	6.9
R-3287-SB10	S	1.5	5.5
R-3288-E2	Diagonal	2.6	7.6
R-3288-HV2	V	2.8	7.6
R-3289-HV	V	1.4	5.2
R-3289-C	Diagonal	1.3	5.2
R-3290	C	1.6	5.8
R-3290-A	C	2.6	9.9
R-3290-B	D	3.5	9.9
R-3290-C	D	3.7	11.0
R-3291	C	1.7	9.0
R-3292	C	1.6	5.8
R-3295	L	2.1	5.9
R-3295-2	L	4.2	8.8
R-3295-3	L	6.3	11.8
R-3297-1	C	2.3	7.5
R-3337-A	C	1.1	6.0
R-3338-F	A	1.4	6.5
R-3338-G	A	2.8	9.5
R-3339	C	1.6	7.8
R-3339-A	A or C	1.8	8.5
R-3340-B	C	1.3	6.8
R-3340-D	C	1.2	7.5
R-3341	K	0.3	3.2
R-3342	K	0.5	4.4
R-3344	K	1.1	6.2
R-3345	K	1.1	6.8
R-3346	K	1.4	8.9
R-3347	K	1.3	7.4
R-3347-A	K	2.3	10.4
R-3348	K	1.9	8.0
R-3349-A	K	1.8	7.7
R-3350	K	2.2	9.3
R-3351	K	2.7	9.3
R-3356-A	K	1.5	7.6
R-3357-A	K	2.0	8.7
R-3359	K	1.1	7.3
R-3360-A	K	1.6	7.8
R-3361	K	3.4	12.7
R-3362	C	2.3	10.3
R-3362-L	L	2.9	10.3
R-3362-1	C	2.3	7.0
R-3363-1	C	4.6	10.3
R-3381	K	1.0	6.8
R-3382	K	2.3	10.4
R-3393-A	K	2.0	8.7
R-3396	K	3.2	11.4
R-3397	A	1.1	7.2
R-3397-1	V	1.5	7.2
R-3401	D	1.9	7.6
R-3401-B	B	3.8	11.2
R-3401-C	B	5.7	14.7
R-3402	A or C	0.4	4.0
R-3402-E	A or C	2.1	8.0
R-3403	A or C	1.1	6.5
R-3403-A1	A	1.5	8.3
R-3403-F	A	3.2	10.6
R-3404	A or C	1.4	7.2
R-3405	A or C	1.5	7.9
R-3405-A	A or C	1.3	8.0
R-3405-B	A or C	1.3	8.0
R-3406	C	1.8	9.8
R-3406-A	C	1.8	9.8
R-3406-2	C	3.7	15.9
R-3406-A2	C	3.7	15.9
R-3408-L	L	1.2	7.3
R-3408-AL	L	2.4	9.7
R-3408-BL	L	2.4	12.5
R-3409	C	1.5	7.6
R-3413	C	1.5	9.0
R-3415	A	4.1	13.5
R-3416	A	1.4	9.8
R-3420	A	1.2	10.0
R-3423	B	1.6	9.9
R-3425-A	K	2.1	9.4
R-3425-B	K	2.1	9.4
R-3429-A	A or C	1.0	6.0
R-3430	A or C	0.9	6.6
R-3433	A or C	1.5	8.0
R-3437	C	3.3	12.0
R-3438-A	A or C	7.0	16.6
R-3448-B	C	1.1	6.8
R-3448-C	C	0.9	6.8
R-3448-D	S	1.2	6.8
R-3449	C	0.9	6.8
R-3451	C	1.5	7.3
R-3451-B	C	1.7	7.8
R-3454	A	4.1	13.2
R-3454-B	D	2.5	9.9
R-3454-BL	L	3.1	7.0
R-3455-A	A	2.6	9.8
R-3455-C	A	2.6	10.0
R-3457-C2	B	6.0	14.0
R-3460-A	A	0.8	6.0
R-3460-D	C	0.8	6.0
R-3461	C	1.5	8.0
R-3462-B	Diagonal	1.8	7.6
R-3463-B	Diagonal	3.5	12.6
R-3465	A	0.8	6.0
R-3466-A	A	0.8	6.0
R-3469	A	2.7	9.2
R-3469-E2	B or D	2.3	9.2
R-3470	L	2.2	8.4
R-3470-2	L	4.4	12.4
R-3471	C	0.6	5.8
R-3472	A or C	1.3	7.3
R-3473	C	0.9	6.3
R-3475	A	2.7	9.8
R-3475-1	A	2.7	9.8
R-3475-3	A	4.1	13.7
R-3475-E	A	2.4	9.8
R-3475-F	C	4.8	13.8
R-3475-G	C	7.2	17.8
R-3475-H	C	9.6	21.8
R-3477-A	C	3.3	12.3
R-3480	C	3.3	12.7
R-3480-A	A	1.6	8.5
R-3491-A	G	0.9	5.5
R-3491-G	G	1.7	7.1
R-3491-H	G	1.2	7.6
R-3491-J	G	1.8	8.5
R-3492-1	G	1.7	7.1
R-3492-BG	G	2.6	9.9
R-3492-CG	G	2.6	9.9
R-3493-C	G	0.6	6.2
R-3501-D2A	M	1.0	3.4
R-3501-E2	M	1.4	4.2
R-3501-HL	M	3.3	5.8
R-3501-H4	M	3.0	5.8
R-3501-L1A	M	1.2	4.4
R-3501-M	M	2.3	5.6
R-3501-N	M	1.6	4.3
R-3501-P	M	1.5	4.3
R-3501-R	M	2.6	5.5
R-3501-TL	M	1.4	4.6
R-3501-TR	M	1.4	4.6
R-3502-A	M	1.4	4.1
R-3502-B	M	1.4	4.2
R-3502-D2	M	1.9	4.2
R-3503-A	M	1.3	4.1
R-3503-B	M	2.0	4.1
R-3504-F	M	2.8	5.1
R-3506-A2	M	1.4	2.9
R-3506-B	M	1.2	2.9
R-3507-C	M	1.6	3.7
R-3507-D	M	1.6	3.7
R-3508-A2	M	1.7	3.8
R-3508-B	M	1.8	3.8
R-3508-B1	M	1.9	3.8
R-3508-B2	M	1.4	7.5
R-3508-C	M	1.4	3.8
R-3509	M	0.9	2.8
R-3510	M	2.9	4.1
R-3511	M	2.0	2.9
R-3513	M	1.4	4.7
R-3514-F	M	2.6	5.5
R-3514-F2	M	5.1	7.7
R-3516	M	4.0	6.2
R-3516-1	M	2.0	4.3
R-3517	M	1.8	3.7
R-3526-1	K	1.8	6.7
R-3527-M	V	1.6	11.3
R-3527-V	V	1.8	5.6
R-3528-V	V	1.8	7.5
R-3529-V	V	1.6	11.3
R-3531-A	A or C	6.0	13.0
R-3531-B	A or C	6.0	13.0
R-3531-C	A or C	3.0	9.1
R-3531-D	A or C	3.0	9.1
R-3531-E	A or C	4.7	12.7
R-3540	L	3.2	10.6
R-3540-2	L	6.4	16.3
R-3541	L	1.6	7.3
R-3541-2	L	3.2	11.3
R-3550-2	L	5.8	15.2
R-3560	L	1.5	8.4
R-3561	L	2.3	10.4
R-3562	L	1.5	8.7
R-3570	A	2.4	7.4
R-3570-A	A	2.4	7.4
R-3571	A	2.4	7.4
R-3571-A	A	2.4	7.4
R-3572-A	Diagonal	4.4	12.4
R-3572-2D	Diagonal	3.8	12.3
R-3573-2D	Diagonal	3.8	12.3
R-3573-2L	L	4.6	12.3
R-3573-2Q	Q	1.8	12.3
R-3574-2D	Diagonal	3.8	12.3
R-3574-2L	L	4.6	12.3
R-3574-2Q	Q	1.8	12.3
R-3575	B	2.6	9.5
R-3576	Diagonal	2.4	9.3
R-3577	D	1.8	9.2
R-3578	L	2.3	10.9
R-3580	L	1.4	7.9
R-3580-1	L	2.8	12.9
R-3581	V	2.2	9.3
R-3588	D	1.8	7.9
R-3588-A	A	1.2	7.9
R-3588-LL	L	1.6	7.9
R-3588-LL4	L	1.6	7.9
R-3588-LR	L	1.6	7.6
R-3588-LR4	L	1.6	7.6
R-3589	D	1.8	7.9
R-3589-A	A	1.2	7.9
R-3589-LL	L	1.5	7.9
R-3589-LL4	L	1.5	7.9
R-3589-LR	L	1.5	7.9
R-3589-LR4	L	1.5	7.9
R-3591	A	1.5	8.0
R-3593	C	2.5	12.3
R-3599-A	L	0.1 per ft.	6.0
R-3807	K	6.0	13.4
R-3808-1	C	5.2	12.3
R-3808-2	C	10.3	19.9
R-3900-B	L	1.9	7.7
R-3900-C	L	3.8	11.8
R-3900-D	L	5.7	16.0
R-3919	Diagonal	1.4	6.9
R-3920-V	V	0.9	4.2
R-3921-V	V	1.0	5.0
R-3922	V	0.8	5.9
R-3922-A	V	0.8	5.0
R-3924	B	2.3	8.4
R-3928	B	0.5	1.9
R-3930	B or D	0.3	3.0
R-3931	B or D	0.3	3.0
R-3935	A or C	0.6	5.3
R-3936-A	C	1.0	6.5
R-3940	A	1.0	6.1
R-3942	V	0.8	5.1
R-3943	V	1.2	6.9
R-3945	L	2.4	13.0
R-3948-A	C	1.1	5.1
R-3948-V	V	1.5	5.1
R-3951	L	1.6	9.0
R-3952	D	1.1	6.3
R-3954	B	1.8	8.1
R-3961	D	0.7	5.2
R-3976	B	0.2	3.3
R-3977	B	0.1	2.6
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R-4xxx Castings

Catalog Number	Grate Type	Square Feet Open	Weir Perimeter Lineal Feet
R-4001-B	C	0.3	2.5
R-4003-A	A	0.9	6.1
R-4003-B	A	0.9	6.1
R-4003-C	A	0.9	6.1
R-4004-A	C	1.3	6.8
R-4004-B	B	1.5	7.4
R-4004-C	B	1.5	7.4
R-4004-G1	D	1.9	7.3
R-4005-A2	B or D	0.4	4.3
R-4006	B or D	0.3	3.1
R-4007	B or D	0.4	4.3
R-4007-A6	B or D	0.4	4.3
R-4008-B	B or D	0.4	4.3
R-4014-B1	C	2.8	9.7
R-4014-C1	C	2.4	8.4
R-4014-T	D	1.3	7.4
R-4014-TL	L	0.5	7.3
R-4014-T1	D	0.8	5.0
R-4015-A	B	0.2	3.3
R-4015-A1	B	0.2	3.3
R-4015-B	C	0.4	3.3
R-4015-C	B	0.2	3.3
R-4015-D	B	0.2	3.3
R-4016-B	C	0.5	4.8
R-4016-H1	A	0.6	5.3
R-4016-K	D	1.1	6.3
R-4018	B	0.2	3.8
R-4030-4	G	0.1	1.4
R-4030-6	G	0.1	2.1
R-4030-8	G	0.2	2.7
R-4030-10	G	0.3	3.3
R-4030-12	G	0.4	3.7
R-4030-15	G	0.8	4.8
R-4030-18	B	1.1	5.8
R-4030-21	B	1.3	6.7
R-4030-24	B	2.1	7.6
R-4030-27	G	2.8	3.0
R-4030-30	G	3.5	3.3
R-4040-6	E	0.1	2.1
R-4040-8	E	0.2	2.7
R-4040-10	E	0.3	3.3
R-4040-12	E	0.4	3.7
R-4040-15	E	0.7	4.8
R-4040-18	E	1.2	5.8
R-4040-21	G	1.4	6.7
R-4040-24	G	1.6	7.6
R-4040-27	G	2.3	3.0
R-4040-30	G	2.9	3.3
R-4215-A	Beehive	2.0	9.0
R-4215-C	Beehive	3.3	11.3
R-4216-B	Beehive	2.2	4.1
R-4216-D	Beehive	3.0	3.8
R-4340-A	Beehive	1.5	6.2
R-4340-B	Beehive	1.1	6.0
R-4340-C	Beehive	1.2	6.0
R-4340-F	Beehive	1.6	6.5
R-4340-F1	Beehive	0.7	4.5
R-4340-G	Beehive	0.6	5.0
R-4340-H	Beehive	0.5	4.5
R-4341-A	Beehive	2.5	6.0
R-4342	Beehive	2.0	6.0
R-4343	Beehive	2.4	8.4
R-4344	Beehive	0.2	2.9
R-4345	Beehive	2.0	8.6
R-4346	Beehive	2.0	8.6
R-4349-A	Beehive	2.4	11.1
R-4349-B	Beehive	5.4	15.5
R-4349-C	Beehive	2.4	6.9
R-4349-D	Beehive	5.4	10.2
R-4350-1	Beehive	0.3	2.7
R-4350-A	Beehive	0.3	3.1
R-4350-B	Beehive	0.4	3.9
R-4350-C	Beehive	0.6	4.8
R-4350-D	Beehive	1.0	5.8
R-4350-E	Beehive	1.7	7.6
R-4351-B	Beehive	0.5	3.9
R-4351-D	Beehive	1.6	5.8
R-4351-E	Beehive	1.5	5.8
R-4352	Beehive	1.3	5.8
R-4353	Beehive	1.8	6.7
R-4360-A	Beehive	0.6	4.3
R-4360-B	Beehive	0.8	4.7
R-4360-C	Beehive	1.4	4.5
R-4360-D	Beehive	0.7	6.3
R-4370-1	C	0.1	1.7
R-4370-2	G	0.2	2.5
R-4370-3	E	0.4	3.9
R-4370-4	G	0.6	3.9
R-4370-5	G	0.8	4.7
R-4370-6	G	0.8	5.1
R-4370-7	G	0.8	5.2
R-4370-8	E	1.0	5.5
R-4370-9	C	1.3	5.8
R-4370-10	G	1.1	5.8
R-4370-12	F	0.9	5.8
R-4370-13	G	1.3	5.8
R-4370-15	D	1.0	5.9
R-4370-17	D	1.0	6.0
R-4370-18	E	1.3	6.0
R-4370-21	D	0.9	6.0
R-4370-22	D	1.1	6.0
R-4370-23	G	0.9	6.3
R-4370-25	G	1.9	7.6
R-4370-26	G	2.8	8.6
R-4370-27A	G	2.4	9.9
R-4373-2	K	1.0 sq. in.	0.7
R-4373-3	K	1.0 sq. in.	1.0
R-4373-4	K	3.0 sq. in.	1.2
R-4373-6	K	3.0 sq. in.	1.8
R-4373-8	K	4.0 sq. in.	2.4
R-4373-10	K	5.0 sq. in.	2.9
R-4373-12	K	8.0 sq. in.	3.4
R-4373-15	K	20.0 sq. in.	4.2
R-4380-AA1	E	2.8 sq. in.	1.0
R-4380-A	E	3.7 sq. in.	1.1
R-4380-A1	E	6.0 sq. in.	1.2
R-4380-B1	E	4.8 sq. in.	1.3
R-4380-1	E	5.4 sq. in.	1.4
R-4380-3	E	6.0 sq. in.	1.6
R-4380-4	E	0.1	2.1
R-4380-4A1	E	0.1	2.2
R-4380-4A	E	0.2	2.6
R-4380-6	G	0.2	2.8
R-4380-7	G	0.3	3.1
R-4380-8	E	0.3	3.3
R-4380-9	E	0.4	3.7
R-4380-10	E	0.5	3.9
R-4380-11	E	0.5	3.9
R-4380-12	E	0.6	4.0
R-4380-13	G	0.7	4.2
R-4380-13A	E	0.9	4.7
R-4380-14	E	0.7	4.7
R-4380-15	E	0.6	4.7
R-4380-16	E	0.8	5.0
R-4380-17	E	0.8	5.0
R-4380-18	G	0.7	5.2
R-4380-21	G	1.3	6.3
R-4380-22	G	1.5	7.0
R-4380-23	G	1.1	7.3
R-4380-24	G	1.7	7.9
R-4380-25	G	2.5	8.4
R-4380-26	G	2.7	8.8
R-4385-B	E	0.1	2.1
R-4385-C	E	0.3	2.7
R-4385-E	E	0.5	3.9
R-4385-F	E	0.5	4.8
R-4385-G	E	1.0	5.8
R-4385-H	G	1.6	7.6
R-4385-J	G	2.5	8.6
R-4385-K	G	2.7	9.4
R-4389-O	B	0.2	3.0
R-4390	B	0.3	5.0
R-4400	B	0.1	2.7
R-4401	A	0.1	2.7
R-4403	A	0.3	3.7
R-4404-C	B	0.5	5.3
R-4406	B	0.5	5.3
R-4406-C	A	0.4	5.5
R-4406-1	A	0.5	5.3
R-4406-2	C	0.6	5.3
R-4407-2A	B	0.6	5.6
R-4408	B	0.3	3.4
R-4409	A	0.4	4.6
R-4409-A	C	0.7	5.7
R-4409-C	B	0.5	5.7
R-4409-E	A	0.5	5.7
R-4409-G	B	0.8	5.7
R-4410	B	0.8	6.5
R-4421	C	1.0	8.3
R-4423-A	A	1.2	9.7
R-4424	A	0.6	5.6
R-4430-A	A	0.6	6.0
R-4430-B	C	0.7	5.9
R-4435-1	C	0.8	4.3
R-4441-1	Q	0.2	4.0
R-4443	A	0.4	4.3
R-4449	A	0.8	6.0
R-4450	A	0.8	6.0
R-4450-A	A	0.6	6.0
R-4451	C	0.7	6.0
R-4454	C	0.9	6.3
R-4460	A	0.8	7.0
R-4462	B	0.9	7.8
R-4470	A	1.5	10.0
R-4511	A	0.5	4.7
R-4525	A	0.8	6.3
R-4530	A	0.8	6.1
R-4531	A	0.8	6.4
R-4540	C	1.0	6.8
R-4541	A	1.0	7.1
R-4544	A	1.8	8.7
R-4545	A	1.6	10.4
R-4548	A	1.0	5.9
R-4550	C	0.8	5.0
R-4552	A	0.6	5.3
R-4557	A	0.8	5.3
R-4558	C	1.1	5.9
R-4570-1	A	0.9	6.3
R-4570-2	A	0.9	6.5
R-4573	A	1.1	7.5
R-4575-A	A	1.7	8.5
R-4579	A	0.8	6.4
R-4583	A	0.9	6.3
R-4584	A	1.3	4.3
R-4585	A	1.9	9.1
R-4586	A	1.5	8.6
R-4600	A	0.9	6.5
R-4603-A	A	0.8	6.7
R-4604	C	1.3	6.7
R-4604-C	A	0.7	6.7
R-4604-D	A	1.5	6.7
R-4608	A	0.8	6.0
R-4610	A	1.0	6.4
R-4620	A	0.8	6.0
R-4630	C	0.9	6.2
R-4632	C	1.1	6.3
R-4640	A	1.3	6.4
R-4641-A	A	1.2	6.8
R-4641-C	C	1.1	6.8
R-4641-F	A	1.8	8.5
R-4649	A	1.1	6.9
R-4649-1	C	2.2	10.0
R-4652	A	1.5	7.9
R-4660	C	1.1	6.0
R-4662	A	1.3	6.6
R-4670-A	A	1.1	7.0
R-4671	A	1.1	7.0
R-4672	C	1.1	7.0
R-4689	C	1.4	7.5
R-4692-A	D	2.0	8.7
R-4698	A	1.7	9.0
R-4710	C	1.5	9.0
R-4711	C	1.1	9.5
R-4718	A	2.7	9.3
R-4720	C	0.9	6.7
R-4721-A	A	1.2	7.0
R-4725	C	1.6	7.0
R-4730	A	2.0	8.6
R-4731	A	2.5	9.8
R-4732	A	2.0	9.8
R-4736	C	1.1	7.3
R-4738	A	1.1	7.3
R-4739	C	1.3	7.3
R-4740	C	2.1	8.0
R-4750	C	2.4	8.3
R-4750-1	A	2.8	11.3
R-4751	C	1.9	7.9
R-4752	C	2.3	9.4
R-4755-B	A	2.8	10.5
R-4755-C	C	2.9	10.5
R-4759	C	1.5	7.5
R-4760	C	1.7	7.3
R-4762	C	2.4	8.7
R-4765	A	1.4	7.7
R-4780	C	3.1	9.8
R-4781	C	3.0	11.7
R-4792	C	1.7	9.8
R-4795	A	3.2	11.3
R-4798	C	2.4	9.9
R-4808-A	Q	0.8	8.0
R-4810	C	1.5	8.0
R-4820	C	1.5	8.0
R-4821-A	C	1.7	8.3
R-4825	C	1.8	9.0
R-4825-A	A	2.1	9.0
R-4825-B	C	2.0	9.0
R-4826	A	1.3	8.0
R-4828	A	1.9	9.5
R-4829	C	2.2	9.5
R-4832	C	1.5	8.0
R-4832-B	C	1.8	8.7
R-4833	A	2.3	8.7
R-4837	A	2.2	9.8
R-4839	A	2.1	9.9
R-4840	C	2.8	10.0
R-4843	A	2.6	10.0
R-4850	C	2.7	9.0
R-4852	C	2.0	9.0
R-4852-A	Q	1.8	9.0
R-4853	A	2.5	10.5
R-4853-A	A	3.1	11.5
R-4853-B1	C	3.3	12.5
R-4855	A	2.0	9.3
R-4856	C	3.1	9.7
R-4857	A	3.1	12.3
R-4859-C	A	2.4	9.1
R-4871	B	2.7	9.2
R-4880	C	2.5	9.3
R-4880-C	C	2.2	10.0
R-4882	A	4.0	11.3
R-4882-A	A	2.8	11.3
R-4884-A	C	3.3	6.0
R-4890	C	3.4	10.8
R-4891	A	3.5	13.0
R-4893	C	6.0	18.0
R-4893-B	C	1.9	11.0
R-4894	C	3.3	11.5
R-4895-2	A	6.6	17.0
R-4938	A	0.8	6.9
R-4938-1	A	1.5	8.2
R-4938-B	A	0.2	3.2
R-4939-B	K	4.7 sq. in.	3.0
R-4941-A	B	0.4	4.7
R-4942-A	A	0.7	6.5
R-4943	K	0.3	5.4
R-4943-A	K	0.3	5.4
R-4943-B	K	0.3	5.4
R-4976-1	A	0.9	3.1
R-4976-1	B	0.9	3.1
R-4976-2	A	1.5	4.2
R-4976-2	B	1.5	4.2
R-4976-3	A	2.5	5.2
R-4976-3	B	2.5	5.2
R-4976-4	A	3.7	6.3
R-4976-4	B	3.7	6.3
R-4976-5	B	5.2	8.1
R-4977-1	A	1.5	4.0
R-4977-1	B	1.5	4.0
R-4977-2	A	2.0	5.0
R-4977-2	B	2.0	5.0
R-4977-3	A	3.7	10.0
R-4977-3	B	3.7	10.0
R-4977-4	A	5.3	12.0
R-4977-4	B	5.3	12.0
R-4977-5	A	8.0	15.0
R-4977-5	B	8.0	15.0
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Trench Castings

Catalog Number	Grate Type	Square Feet Open	Weir Perimeter Lineal Feet
R-4990-AA	A	0.2	2.0
R-4990-AX	A	0.2	2.0
	C	0.3	2.0
	P	0.1	2.0
R-4990-BA	A	0.3	2.0
R-4990-BX	A	0.3	2.0
	C	0.3	2.0
	P	0.1	2.0
R-4990-CA	A	0.4	2.0
R-4990-CX	A	0.4	2.0
	C	0.4	2.0
	P	0.1	2.0
R-4990-DA	A	0.4	2.0
R-4990-DX	A	0.4	2.0
	C	0.5	2.0
	P	0.2	2.0
R-4990-EA	A	0.5	2.0
R-4990-EX	A	0.6	2.0
	C	0.5	2.0
	P	0.2	2.0
R-4990-FA	A	0.6	2.0
R-4990-FX	A	0.7	2.0
	C	0.8	2.0
	P	0.5	2.0
R-4990-GX	A	0.8	2.0
	C	0.7	2.0
R-4990-HA	A	0.9	2.0
R-4990-HX	A	0.9	2.0
	C	0.9	2.0
R-4990-JX	A	1.0	2.0
	C	1.1	2.0
R-4990-KA2	A	0.6	2.0
R-4990-KX	A	1.1	2.0
	C	0.9	2.0
R-4990-LX	A	1.2	2.0
	C	1.2	2.0
R-4990-MX	A	1.3	2.0
	C	1.3	2.0
R-4990-NX	A	1.5	2.0
	C	1.6	2.0
R-4990-OA	A	2.7	2.0
R-4990-OX	A	1.7	2.0
	C	NA	2.0
R-4995-A1	B	0.2	2.0
	C	0.3	2.0
R-4995-A2	B	0.2	2.0
R-4996-A1	Diagonal	0.3	2.0
	Convex
	C	0.3	2.0
R-4996-A2	B	0.2	2.0
R-4996-A3	C	0.3	2.0
R-4999-Series	Same as R-4990 Series
R-4999-L3	L	0.3	2.0
R-4999-L6	L	0.8	2.0
R-4999-L9	L	0.9	2.0
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R-5xxx Casings

Catalog Number	Grate Type	Square Feet Open	Weir Perimeter Lineal Feet
R-5901-A	G	0.2	2.7
R-5901-B	G	0.3	3.5
R-5901-C	G	0.5	4.3
R-5901-D	G	0.7	4.8
R-5901-E	G	1.1	5.8
R-5901-F	G	1.6	6.6
R-5901-G	G	2.0	7.4
R-5901-H	G	2.5	8.9
R-5901-J	G	3.7	10.5
R-5901-K	G	4.8	12.1
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R-6xxx Castings

Catalog Number	Grate Type	Square Feet Open	Weir Perimeter Lineal Feet
R-6020	G	1.0	5.6
R-6040	G	1.3	6.2
R-6070	G	1.5	6.9
R-6077	G	2.5	8.3
R-6080	G	2.7	8.7
R-6110	G	0.9	5.5
R-6111	G	1.2	6.0
R-6112	G	1.3	6.0
R-6113	G	0.9	6.3
R-6114	G	1.8	7.0
R-6115	G	1.7	7.0
R-6116	G	1.2	7.6
R-6117	G	1.8	8.5
R-6118	G	2.6	9.9
R-6130	G	0.8	5.4
R-6131	G	1.0	5.6
R-6132	G	1.3	6.3
R-6133	G	1.3	6.5
R-6134	G	1.5	6.9
R-6136	G	2.5	8.3
R-6137	G	2.7	8.8
R-6352-A	G	0.4	3.4
R-6352-B	G	0.8	4.2
R-6352-D	G	0.7	4.9
R-6352-E	G	0.8	5.5
R-6352-G	G	1.3	6.5
R-6400-AO	G	0.3	3.1
R-6400-BO	G	0.8	5.0
R-6400-CO	G	1.8	7.0
R-6400-DO	G	1.2	7.6
R-6450-AG	G	0.2	2.4
R-6450-BG	G	0.2	3.1
R-6450-CG	G	0.4	3.4
R-6450-DG	G	0.5	4.2
R-6450-EG	G	0.7	5.4
R-6450-FG	G	0.1	5.6
R-6450-GG	G	1.3	6.3
R-6450-HG	G	1.3	6.9
R-6450-JG	G	1.9	8.3
R-6450-KG	G	2.7	8.8
R-6672-1	A or C	0.4	3.9
R-6672-A	A or C	0.8	4.1
R-6672-B	A or C	0.5	4.6
R-6672-C	A or C	0.8	6.0
R-6672-D	A or C	1.1	7.3
R-6672-E	A or C	1.8	7.9
R-6672-F	A or C	2.7	8.6
R-6672-G	A or C	2.2	9.0
R-6672-H	A or C	2.1	9.2
R-6672-J	A or C	2.4	10.0
R-6672-K	A or C	2.5	10.6
R-6672-M	A or C	3.0	12.3
R-6672-Q	A or C	9.3	18.8
R-6673-A	A	0.6	5.7
R-6673-B	A	0.9	6.5
R-6673-C	A	1.2	7.5
R-6673-D	A	2.1	8.6
R-6673-E	A	2.5	9.6
R-6673-J	A	2.6	9.5
R-6673-K	A	2.9	10.6
R-6673-L	A	3.7	12.6
R-6673-N	A	3.3	11.6
R-6673-O	A	4.9	13.5
R-6673-Q1	A	5.0	14.7
R-7511	Beehive	1.1	5.5
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NOTE: On catalog #'s R-4990-AA thru R-4999-L9, SQ.FT.OPEN and WEIR PERIMETER are per lineal foot.

* Type K indicates "Special" grate style and is not among standard types illustrated.

* Type M indicates roll-type or mountable curb.