Barry Pattern & Foundry

Trench Grates

BarryCraft manufactures quality trench grating for virtually any requirement or need that you may have - from the simplest to the most complex casting needs.

Trench Grate
Trench Grate

BarryCraft Specifications Meet:

Short Form Specifications & Service Information

Gray Cast Iron

Gray cast iron trench grating / solid covers and frames shall be as manufactured by Barry Pattern and Foundry (BarryCraft), Birmingham, Alabama. Gray cast iron used in the manufacture of trench grating or solid covers and frames shall conform to ASTM A48-83 CLASS 35. All castings shall be of uniform quality, free from blow holes, shrinkage defects, swells, cracks or other defects. Casting will be free of fins, burrs and slag.

Ductile Cast Iron

Ductile cast iron trench grating or solid covers (frames furnished in gray cast iron unless specified ductile cast iron) shall be as furnished by Barry Pattern and Foundry (BarryCraft), Birmingham, Alabama. Ductile cast iron used in the manufacture of trench grating or solid covers and frames shall conform to ASTM A536-80 grade 65-45-12. All castings shall be of uniform quality, free from blow holes, shrinkage defects, swells, cracks, or other defects. Casting will be free of fins, burrs and slag.

Cast Aluminum

Cast aluminum trench grating or solid covers and frames shall be as manufactured by Barry Pattern and Foundry (BarryCraft), Birmingham, Alabama. Cast aluminum used in the manufacture of trench grating or solid covers and frames shall be alloy 319 meeting Federal Specifications QQ-A-601 and ASTM B-26. All casting shall be of uniform quality, free from blow holes, shrinkage defects, swells, cracks or other defects. Casting will be free of fins, burrs and slag. Cast aluminum will be natural sand-cast finish. H-20 loading must be specified if required.


Gray Cast Iron - Standard designs

Trench Grating Diagram
CAD Drawing Get DWG Viewer

(Click on image to enlarge)

A = Grate / Cover Width
B = Edge Thickness
C = Trench Width
D = Varies with Load Required

Note: The above illustration shows only basic dimensions, and does not apply to all cover designs. Bar depths, seating widths and center thickness may vary on different styles and sizes.

Gray Cast Iron is an excellent and economical material for use in areas where heavy or light wheel loadings do not subject the grates or covers to extreme shock levels.Gray Cast Iron exhibits good corrosion resistance in road wear areas. BarryCraft Construction Casting Company has provided you with loading tables to enable you to select exactly what you require.

Note: The wheel load selection including impact (such as H-20) is your most important consideration. If H-20 loading is required on aluminum - it must be specified.

 


Standard Grate & Cover Designs

Available in Gray, Ductile Cast Iron, and Aluminum

(Click on images to enlarge)

Type "A"
CAD Drawing Get DWG Viewer
Type "B"

Type "A" Grate

Slots run perpendicular to frame. Recommended for highest strength and lowest cost.

Type "B" Grate

Slots are perpendicular to frame.

Type "C"
CAD Drawing Get DWG Viewer
Type "D"
CAD Drawing Get DWG Viewer

Type "C" Grate

Slots are parallel to frame.

Type "D" Solid Cover

Solid cover. Abrasive grit available.


New!

Type "AK"

Type "AK" Grate

Slots run perpendicular to frame. Recommended for highest strength and lowest cost with raised knobs to improve drainage and traction.


New Grate Designs For safety!

Type "AAA"
CAD Drawing Get DWG Viewer

Type "HH"
CAD DrawingGet DWG Viewer

Type "AAA" Grate

Slots run diagonal to frame. For handicap / bicycle safety.

Type "HH" Grate

Slots run perpendicular to frame. Slots to 5/16" wide for pedestrian traffic.

Type "W"

Grate Designs for Safety

Type "W" Grate

Wave Grates. This is a top surface view. There are ribs underneath for support.

 


Bolting Details

(Click on image to enlarge)

Bolting Details


 

Truck Grates For Heavy Loads

H-20 Loading

Trench Grates / Covers / Frames

B-H20G Series

TABLE: Dimension In Inches Open Area / 2'0" Section
Trench Grating Style Grate Width
"A"
Edge Thickness
"B"
Trench Width
"C"
Square Inches Percent

H-20 design provides for (on each 2'0" section of grate):

1. two wheel loads of 9,000# + 3,000# of impact per wheel; or

2. a single wheel load of 24,000# (including impact).

Our heavy duty grates and frames are designed for warehouse trucks, concrete mixers and tractor trailers.

B-H20G-A 8 1-1/2 6 78 54%
B-H20G-B 10 1-1/2 8 91 47%
B-H20G-C 12 1-1/2 10 117 49%
B-H20G-D 14 1-1/2 12 143 50%
B-H20G-E 17 1-1/2 15 182 51%
B-H20G-F 20 1-1/2 18 221 51%
B-H20G-G 23 1-1/2 21 260 52%
B-H20G-H 26 1-1/2 24 248 43%
B-H20G-J 30 2 27 282 44%
B-H20G-K 33 2 30 317 44%
B-H20G-L 36 2 33 351 44%
B-H20G-M 39 2 36 377 44%
B-H20G-N 45 2 42 441 44%
B-H20G-O 51 2 48 510 44%

Car Grates For Lighter Loads

H-15 Loading

Trench Grates / Covers / Frames

B-H15G Series

TABLE: Dimension In Inches Open Area / 2'0" Section
Trench Grating Style Grate Width
"A"
Edge Thickness
"B"
Trench Width
"C"
Square Inches Percent

H-15 design provides for (on each 2'0" section of grate):

1. two wheel loads of 6,750# + 2,250# of impact per wheel; or

2. a single wheel load of 18,000# (including impact).

Our medium heavy duty grates and frames are excellent for truck cranes with pneumatic tires and where usual highway and industrial loading occurs.

B-H15G-A 8 1-1/2 6 78 54%
B-H15G-B 10 1-1/2 8 91 47%
B-H15G-C 12 1-1/2 10 117 49%
B-H15G-D 14 1-1/2 12 143 50%
B-H15G-E 17 1-1/2 15 182 51%
B-H15G-F 20 1-1/2 18 221 51%
B-H15G-G 23 1-1/2 21 260 52%
B-H15G-H 26 1-1/2 24 248 43%
B-H15G-J 30 2 27 282 44%
B-H15G-K 33 2 30 317 44%
B-H15G-L 36 2 33 351 44%
B-H15G-M 39 2 36 377 44%
B-H15G-N 45 2 42 441 44%
B-H15G-O 51 2 48 510 44%

H-10 Loading

Trench Grates / Covers / Frames

B-H10G Series

TABLE: Dimension In Inches Open Area / 2'0" Section
Trench Grating Style Grate Width
"A"
Edge Thickness
"B"
Trench Width
"C"
Square Inches Percent

H-10 design provides for (on each 2'0" section of grate):

1. two wheel loads of 4,500# + 1,500# of impact per wheel; or

2. a single wheel load of 12,000# (including impact).

Our medium duty grates and frames are excellent for vehicles such as light trucks, automobiles and dollies.

B-H10G-A 8 1-1/2 6 78 54%
B-H10G-B 10 1-1/2 8 91 47%
B-H10G-C 12 1-1/2 10 117 49%
B-H10G-D 14 1-1/2 12 143 50%
B-H10G-E 17 1-1/2 15 182 51%
B-H10G-F 20 1-1/2 18 221 51%
B-H10G-G 23 1-1/2 21 260 52%
B-H10G-H 26 1-1/2 24 248 43%
B-H10G-J 30 1-1/2 27 282 44%
B-H10G-K 33 1-1/2 30 317 44%
B-H10G-L 36 1-1/2 33 351 44%
B-H10G-M 39 1-1/2 36 377 44%
B-H10G-N 45 1-1/2 42 441 44%
B-H10G-O 51 1-1/2 48 510 44%

1000 Pound Loading Trench Grates / Covers / Frames

TABLE: Dimension In Inches Open Area / 2'0" Section
Trench Grating Style Grate Width
"A"
Edge Thickness
"B"
Trench Width
"C"
Square Inches Percent

Light duty trench grates, covers and frames are recommended for applications where maximum wheel loads do not exceed 1,000 pounds.

In addition to areas with light traffic, these grates are also excellent for pedestrian traffic. They are functional and yet attractive enough for the most demanding eye.

B-1000G-A 8 1-1/2 6 78 54%
B-1000G-B 10 1-1/2 8 91 47%
B-1000G-C 12 1-1/2 10 117 49%
B-1000G-D 14 1-1/2 12 143 50%
B-1000G-E 16 1-1/2 14 182 51%
B-1000G-F 18 1-1/2 16 221 51%
B-1000G-G 20 1-1/2 18 260 52%
B-1000G-H 24 1-1/2 22 248 43%
B-1000G-J 26 1-1/2 24 282 44%
 

* Note: 1,000 pound loading trench grates and covers are supplied with 1-1/2" edge thickness for use with "L" frame installations. E-Z Frames are also available. Type "L1" frames are available for 3/4" cover thickness. Please specify edge thickness and frame type when ordering.


Ductile Cast Iron - Standard Designs

Trench Grating Diagram
CAD Drawing Get DWG Viewer

(Click on image to enlarge)

A = Grate / Cover Width
B = Edge Thickness
C = Trench Width
D = Varies with Load Required

Note: The above illustration shows only basic dimensions, and does not apply to all cover designs. Bar depths, seating widths and center thickness may vary on different styles and sizes.

Ductile Cast Iron is an excellent material to be used in areas where heavy or light wheel loading subject extreme and sudden levels of shock to the grates / covers. Ductile Cast Iron by nature will bend slightly, absorbing extreme and sudden impacts. Ductile Cast Iron exhibits essentially the same corrosive resistance as Gray Cast Iron.

Note: Load strength is in the grate itself. Ductile grates are furnished with gray cast iron frames with no sacrifice in load strength. Ductile iron frames can be furnished - but must be specified.


100 Ton loading is available in type "A" grates and type "D" covers with type "L" frames only.

Trench Grating

Plane Grates For Extremely Heavy Loads Available In Type "A" or "D" Covers Only In Type "L" Frame Only

60 Ton Wheel Load

Trench Grates / Covers / Frames

B-60TD Series

TABLE: Dimension In Inches Open Area / 2'0" Section
Trench Grating Style Grate Width
"A"
Edge Thickness
"B"
Trench Width
"C"
Square Inches Percent

This design provides for (on each 2'0" section of grate):

1. a single wheel load of 60 Tons (120,000#) + 24,000# of impact, equaling a total wheel load of 144,000#.

Our extra heavy duty grates and frames are recommended in areas subjected to extremely heavy loads and shock levels. They are excellent in areas subjected to heavy aircraft, heavy dock cranes, military vehicles and very heavy earthmoving equipment.

B-60TD-A 8 1-1/2 6 78 54%
B-60TD-B 10 1-1/2 8 91 47%
B-60TD-C 12 1-1/2 10 117 49%
B-60TD-D 15 2 12 143 50%
B-60TD-E 18 2 15 182 51%
B-60TD-F 21 2 18 221 51%
B-60TD-G 24 2 21 260 52%
B-60TD-H 27 2 24 248 43%
B-60TD-J 30 2 27 282 44%
B-60TD-K 33 2 30 317 44%
B-60TD-L 36 2 33 351 44%
B-60TD-M 39 2 36 377 44%
B-60TD-N 45 2 42 441 44%
B-60TD-O 51 2 48 510 44%

40 Ton Wheel Load

Trench Grates / Covers / Frames

B-40TD Series

TABLE: Dimension In Inches Open Area / 2'0" Section
Trench Grating Style Grate Width
"A"
Edge Thickness
"B"
Trench Width
"C"
Square Inches Percent

This design provides for (on each 2'0" section of grate):

1. a single wheel load of 40 Tons (80,000#) + 16,000# of impact, equaling a total wheel load of 96,000#.

Our extra heavy duty grates and frames are recommended in areas subjected to extremely heavy loads and shock levels. They are excellent in areas subjected to heavy aircraft, heavy dock cranes, military vehicles and very heavy earth moving equipment.

B-40TD-A 8 1-1/2 6 78 54%
B-40TD-B 10 1-1/2 8 91 47%
B-40TD-C 12 1-1/2 10 117 49%
B-40TD-D 15 2 12 143 50%
B-40TD-E 18 2 15 182 51%
B-40TD-F 21 2 18 221 51%
B-40TD-G 24 2 21 260 52%
B-40TD-H 27 2 24 248 43%
B-40TD-J 30 2 27 282 44%
B-40TD-K 33 2 30 317 44%
B-40TD-L 36 2 33 351 44%
B-40TD-M 39 2 36 377 44%
B-40TD-N 45 2 42 441 44%
B-40TD-O 51 2 48 510 44%

20 Ton Wheel Load

Trench Grates / Covers / Frames

B-20TD Series

TABLE: Dimension In Inches Open Area / 2'0" Section
Trench Grating Style Grate Width
"A"
Edge Thickness
"B"
Trench Width
"C"
Square Inches Percent

This design provides for (on each 2'0" section of grate):

1. a single wheel load of 20 Tons (40,000#) + 8,000# of impact, equaling a total wheel load of 48,000#.

Our extra heavy duty grates and frames are recommended in areas subjected to extremely heavy loads and shock levels. They are excellent in areas subjected to heavy aircraft, heavy dock cranes, military vehicles and very heavy earth moving equipment.

B-20TD-A 8 1-1/2 6 78 54%
B-20TD-B 10 1-1/2 8 91 47%
B-20TD-C 12 1-1/2 10 117 49%
B-20TD-D 14 1-1/2 12 143 50%
B-20TD-E 17 1-1/2 15 182 51%
B-20TD-F 20 1-1/2 18 221 51%
B-20TD-G 23 1-1/2 21 260 52%
B-20TD-H 26 1-1/2 24 248 43%
B-20TD-J 30 2 27 282 44%
B-20TD-K 33 2 30 317 44%
B-20TD-L 36 2 33 351 44%
B-20TD-M 39 2 36 377 44%
B-20TD-N 45 2 42 441 44%
B-20TD-O 51 2 48 510 44%

Truck Grates For Heavy Loads

H-20 Loading

Trench Grates / Covers / Frames

B-H20D Series

TABLE: Dimension In Inches Open Area / 2'0" Section
Trench Grating Style Grate Width
"A"
Edge Thickness
"B"
Trench Width
"C"
Square Inches Percent

H-20 design provides for (on each 2'0" section of grate):

1. two wheel loads of 9,000# + 3,000# of impact per wheel; or

2. a single wheel load of 24,000# (including impact).

Our heavy duty grates and frames are designed for warehouse trucks, concrete mixers, tractor trailers and heavy forklifts.

B-H20D-A 8 1-1/2 6 78 54%
B-H20D-B 10 1-1/2 8 91 47%
B-H20D-C 12 1-1/2 10 117 49%
B-H20D-D 14 1-1/2 12 143 50%
B-H20D-E 17 1-1/2 15 182 51%
B-H20D-F 20 1-1/2 18 221 51%
B-H20D-G 23 1-1/2 21 260 52%
B-H20D-H 26 1-1/2 24 248 43%
B-H20D-J 30 2 27 282 44%
B-H20D-K 33 2 30 317 44%
B-H20D-L 36 2 33 351 44%
B-H20D-M 39 2 36 377 44%
B-H20D-N 45 2 42 441 44%
B-H20D-O 51 2 48 510 44%

 


Cast Aluminum - Standard Designs

Trench Grating Diagram
CAD Drawing Get DWG Viewer

(Click on image to enlarge)

A = Grate / Cover Width
B = Edge Thickness
C = Trench Width
D = Varies With Load Required

Note: The above illustration shows only basic dimensions, and does not apply to all cover designs. Bar depths, seating widths and center thickness may vary on different styles and sizes.

Cast Aluminum trench grates / covers / frames offer an attractive maintenance-free method of providing drainage for the most demanding eye. Cast aluminum's resistance to salt water is also outstanding.

Frequent uses include: swimming pool areas, sidewalks, shopping malls, restaurants, kitchen facilities, industrial plants and greenhouses.

Cast aluminum grates / covers can be furnished in Heavy loading but the loading must be specified.

Car Grates For Lighter Loads

H-10 Loading

Trench Grates / Covers / Frames

B-H10A Series

TABLE: Dimension In Inches Open Area / 2'0" Section
Trench Grating Style Grate Width
"A"
Edge Thickness
"B"
Trench Width
"C"
Square Inches Percent

H-10 design provides for (on each 2'0" section of grate):

1. two wheel loads of 4,500# + 1,500# of impact per wheel; or

2. a single wheel load of 12,000# (including impact).

Our medium duty grates and frames are excellent for light vehicle and pedestrian traffic.

B-H10D-A 8 1-1/2 6 78 51%
B-H10D-B 10 1-1/2 8 91 47%
B-H10D-C 12 1-1/2 10 117 49%
B-H10D-D 14 1-1/2 12 143 50%
B-H10D-E 17 1-1/2 15 182 51%
B-H10D-F 20 1-1/2 18 221 51%
B-H10D-G 23 1-1/2 21 260 52%
B-H10D-H 26 1-1/2 24 248 43%
B-H10D-J 30 1-1/2 27 282 44%
B-H10D-K 33 1-1/2 30 317 44%
B-H10D-L 36 1-1/2 33 351 44%
B-H10D-M 39 1-1/2 36 377 44%
B-H10D-N 45 1-1/2 42 441 44%
B-H10D-O 51 1-1/2 48 510 44%

1000 Pound Loading

Trench Grates / Covers / Frames

B-1000A Series

TABLE: Dimension In Inches Open Area / 2'0" Section
Trench Grating Style Grate Width
"A"
Edge Thickness
"B"
Trench Width
"C"
Square Inches Percent

1000 pound loading design provides for (on each 2'0" section of grate):

1. a single wheel load of 1,000# + 500# of impact.

Light duty trench grates and frames are excellent for pedestrian traffic or where the loading does not exceed the 1,000 pound loading classification.

B-1000A-A 8 1-1/2 6 78 51%
B-1000A-B 10 1-1/2 8 91 47%
B-1000A-C 12 1-1/2 10 117 49%
B-1000A-D 14 1-1/2 12 143 50%
B-1000A-E 17 1-1/2 15 182 51%
B-1000A-F 20 1-1/2 18 221 51%
B-1000A-G 23 1-1/2 21 260 52%
B-1000A-H 26 1-1/2 24 248 43%
 

*Note: 1,000 pound loading trench grates and covers are supplied with 1-1/2" edge thickness for use with "L" frame installations. E-Z Frames available. Please specify edge thickness and frame type when ordering.


Pedestrian - Handicap / Bicycle Trench Grating

Pedestrian Trench Grating

PedestrianBarrycraft's "pedestrian" trench grating (type HH design) is a new improved trench grate design for pedestrian traffic. The 5/16" wide slot helps to provide safer grating to walk on in the areas where drainage is required. When specifying or ordering Barrycraft's "pedestrian" grating, please remember to indicate the type of material required. BarryCraft offers you three choices:

The Type L frame is standard and will be provided with the pedestrian grating when a frame is specified. E-Z Frames are available when specified.

These grate sizes are the most popular. Custom sizes may be available for your application.

Applications for BarryCraft's "pedestrian" grating include: sidewalks, terraces, shopping malls, around swimming pools and other areas where appearance and public safety are important.

TABLE: Dimensions In Inches
Trench Grate Style Grate Width
"A"
Edge Thickness
"B"
Trench Width
"C"
B-PED-A1 6 1-1/2 4
B-PED-A2 8 1-1/2 6
B-PED-A3 10 1-1/2 8
B-PED-A4 12 1-1/2 10
B-PED-A5 14 1-1/2 12

*Note: "Pedestrian" trench grating are supplied with 1-1/2" edge thickness for use with "L" frame installations. E-Z frames are also available. Please specify edge thickness and frame type when ordering.


Handicap / Bicycle Trench Grating

Handicap / BicycleBarryCraft's "handicapped / bicycle" trench grating (type AAA design) is designed to help ease handicap and bicycle traffic safely over trench grating installations. BarryCraft's "handicapped / bicycle" trench grating's standard diagonal slots are 3/8" wide with a maximum slot length of 9". Grates and frames may be ordered or specified in:

The Type L frame is standard and will be provided with the handicapped / bicycle grating when a frame is specified. E-Z Frames are available when specified.

These grate sizes are the most popular. Custom sizes may be available for your application.

BarryCraft's "handicapped / bicycle" trench grating is particularly suitable in any public area where handicapped and others on small tire traffic have access. such areas include hospitals, schools, office buildings, colleges, public sidewalks and shopping malls.

TABLE: Dimensions In Inches
Trench Grate Style Grate Width
"A"
Edge Thickness
"B"
Trench Width
"C"
B-HCB-A1 6 1-1/2 4
B-HCB-A2 8 1-1/2 6
B-HCB-A3 10 1-1/2 8
B-HCB-A4 12 1-1/2 10
B-HCB-A5 14 1-1/2 12

*Note: "Handicapped / bicycle " trench grating are supplied with 1-1/2" edge thickness for use with "L" frame installations. Type "L1" frames are available for 3/4" cover thickness. E-Z frames are also available. Please specify edge thickness and frame type when ordering.


Standard Frame Types

(Click on images to enlarge)

Type "L"

Standard and most popular!


1-1/2" Standard "L" Frame



1-1/2" Standard "L"


2" Standard "L" Frame


2" Standard "L"

2" Wide Seat "L"

Type E-Z Frame

Most simple to install.

1-1/2" E-Z Frame - 4'

2" E-Z Frame - 48"