Catch Basin Grates
CATCH BASIN INLETS

Bottom flange frame to rest on concrete structure

Designed for H20 traffic loading

Most available with solid covers

Options for one piece solid covers: bolted, watertight
ROUND MANHOLE CATCH BASINS
Catalog  A  B  C  E  F  

Number  Grate Diameter  Grate Thickness  Clear Opening  Flange OD  Frame Height  Grate Type  Drain Area Sq. Ft. 
MCB82  131/4  11/2  111/2  175/8  4  B  0.4 
MCB162  217/8  11/2  201/4  265/8  4  B  1.1 
MCB210  223/4  11/2  20  25  23/4  B,R,BH  1.3 
MCB260  223/4  11/2  21  32  4  B,R,BH  1.3 
MCB315  223/4  13/4  21  34  7  R,BH  1.0 
MCB350  223/4  11/2  21  35  7  B,R,BH  1.3 
MCB420  24  13/16  22  34  7  B  0.9 
MCB275  24  13/16  22  30  4  B  0.9 
MCB206  251/4  11/2  231/2  291/2  4  B  1.3 
MCB285  26  11/2  24  36  4  B,P,BH  1.3 
MCB375  26  11/2  24  36  7  B,P,BH  1.3 
MCB520  313/4  13/8  30  38  4  B  2.4 
MCB455  337/8  11/2  321/4  381/2  4  B  2.7 
MCB747  38  2  36  46  6  B  3.3 
MCB900  501/4  2  48  561/2  6  B  5.3 
B = Bar Grate, R = Radial, P = ADA/Pedestrian, BH = Beehive
Other Sizes Available

All flat grates designed for H20 traffic loading

All sizes interchangeable with solid covers

Options: Bolted
Bar
Radial
Beehive
Pedestrian
SQUARE Catch Basins
Catalog  A  B  C  E  F  

Number  Grate  Grate Thickness  Clear Opening  Flange OD  Frame Height  Grate Type  Drain Area Sq. Ft. 
HOE60A  113/4 x 11/3/4  11/4  10 x 10  16 x 16  21/2  S  0.4 
HOE165A  18 x 18  11/2  18 x 18  23 x 23  4  S,SC  1.0 
HOE280  24 x 24  11/2  22 x 22  291/4 x 291/4  4  S,SC  1.9 
HOE342  235/8 x 23/5/8  11/2  22 x 22  323/4 x 323/4  6  S,P,DF  1.4 
HOE320  253/4 x 253/4  11/2  24 x 24  313/8 x 313/8  4  S,P,BH  2.0 
HOE428  30 x 30  11/2  28 x 28  341/2 x 341/2  4  C  2.7 
HOE468  32 x 32  11/2  30 x 30  36 x 36  4  CD,SC  2.8 
HOE595  351/2 x 351/2  17/8  331/4 x 331/4  403/4 x 403/4  3  CD  3.6 
HOE598  371/2 x 371/2  11/2  36 x 36  431/4 x 431/4  4  S  4.5 
HOE918  505/8 x 505/8  15/8  485/8 x 485/8  583/4 x 583/4  43/8  S  9.7 
B = Bar Grate, R = Radial, P = ADA/Pedestrian, BH = Beehive
SQUARE Inlets for Slab
Catalog  A  B  C  E  F  

Number  Grate  Grate Thickness  Clear Opening  Flange OD  Frame Height  Grate Type  Drain Area Sq. Ft. 
MCS112  133/8 x 13/3/8  19/16  115/8 x 115/8  191/8 x 191/8  4  S,P,CD  0.40 
MCS234  233/4 x 233/4  11/2  22 x 22  291/4 x 291/4  4  S,P  1.85 
MCS320  253/4 x 253/4  11/2  24 x 24  313/8 x 313/8  4  S,P,BH  2.05 
MCS428  30 x 30  11/2  28 x 28  341/2 x 341/2  4  CD  2.70 
MCS468  32 x 32  11/2  30 x 30  36 x 36  4  CD,SC  2.80 
MCS718  38 x 38  2  36 x 36  43 x 43  4  CD,SC  4.10 
Square Catch Basin
Square Inlet
RECTANGULAR Catch Basins
Catalog  A  B  C  E  F  

Number  Grate  Grate Thickness  Clear Opening  Flange OD  Frame Height  Grate Type  Drain Area Sq. Ft. 
HOE180A  18 x 24  11/2  16 x 22  24 x 301/4  4  CD  1.2 
HOE175A  20 x 23  11/2  18 x 21  24 x 27  31/2  S,DF  1.1 
HOE275A  24 x 30  2  20 x 26  29 x 35  31/2  S  2.4 
KY460  231/2 x 30  3  213/8 x 277/8  321/2 x 39  4  CD  2.3 
HOE562  253/4 x 313/4  11/2  241/4 x 301/8  313/8 x 373/8  4  S  2.7 
HOE580  167/8 x 38  13/4  151/4 x 353/4  26 x 413/8  51/2  S,DF  1.4 
HOE518  233/4 x 353/4  11/2  22 x 34  291/2 x 411/2  4  S,SC,P  2.7 
HOE818  24 x 48 (2)  11/2  24 x 48  35 x 60  5  S,SC  3.3 
HOE567  493/4 x 493/4  11/2  24 x 48  311/2 x 551/2  4  S  4.2 
B = Bar Grate, R = Radial, P = ADA/Pedestrian, BH = Beehive

Frame bottom flange to rest on concrete structure

Designed for H20 traffic loading

Most available with solid covers

Options for one piece solid covers: bolted, watertight
Standard
Crossdrain
Beehive
Pedestrian
Directional
Solid
DOUBLE CATCH BASINS
Catalog  A  B  C  E  F  

Number  Grate  Grate Thickness  Clear Opening  Flange OD  Frame Height  Grate Type  Drain Area Sq. Ft. 
HOE275A DBL  30 x 48  2  26 x 46  36 x 56  31/2  S  5.0 
HOE428DBL  30 x 60  11/2  28 x 601/4  341/2 x 661/2  4  S  5.3 
HOE518DBL  36 x 48  11/2  34 x 48  43 x 571/2  4  S  4.2 
HOE818DBL  48 x 48 (4)  11/2  48 x 48  60 x 571/2  4  S  6.6 
B = Bar Grate, R = Radial, P = ADA/Pedestrian, BH = Beehive
Double Catch Basin