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- Pits 300 × 400 to 700 × 700 mm
- Classes T-2, T-14, T-20 and T-25
- Cover + angle bedframe as one set
- Anchor lugs for casting in
- Hot-dip galvanised
The system
Grating pit covers are used on catch basins, sediment traps, drainage wells and sink holes in roads, parks, plants and civil projects. Each WS-GM set is a grating cover and an angle bedframe with anchor lugs; the type code gives the pit size in decimetres and the cover height – WS-GM45-55 is a 400 × 500 mm pit with a 55 mm cover.
Class T-25
| Pit W × L (mm) | Type | Grating b × a × h (mm) | kg | Bedframe b × a × h (mm) | Angle | Frame kg |
|---|---|---|---|---|---|---|
| 300 × 400 | WS-GM34-55 | 305 × 500 × 55 | 14.2 | 335 × 520 × 60 | L60×5 | 7.6 |
| 400 × 400 | WS-GM44-55 | 395 × 500 × 55 | 18.3 | 425 × 520 × 60 | L60×5 | 8.5 |
| 500 × 400 | WS-GM54-55 | 485 × 500 × 55 | 22.5 | 515 × 520 × 60 | L60×5 | 9.3 |
| 300 × 500 | WS-GM35-65 | 305 × 620 × 65 | 22.8 | 335 × 640 × 70 | L70×5 | 9.4 |
| 400 × 500 | WS-GM45-65 | 395 × 620 × 65 | 29.5 | 425 × 640 × 70 | L70×5 | 10.4 |
| 500 × 500 | WS-GM55-65 | 485 × 620 × 65 | 36.2 | 515 × 640 × 70 | L70×5 | 11.4 |
| 300 × 600 | WS-GM36-75 | 305 × 740 × 75 | 28.6 | 335 × 760 × 80 | L80×5 | 11.5 |
| 400 × 600 | WS-GM46-75 | 395 × 740 × 75 | 36.4 | 425 × 760 × 80 | L80×5 | 12.6 |
| 500 × 600 | WS-GM56-75 | 485 × 740 × 75 | 44.3 | 515 × 760 × 80 | L80×5 | 13.7 |
| 500 × 700 | WS-GM57-75 | 485 × 840 × 75 | 49.9 | 515 × 860 × 80 | L80×5 | 14.5 |
| 700 × 700 | WS-GM77-75 | 695 × 840 × 75 | 70.6 | 725 × 860 × 80 | L80×5 | 17.1 |
Class T-20
| Pit W × L (mm) | Type | Grating b × a × h (mm) | kg | Bedframe b × a × h (mm) | Angle | Frame kg |
|---|---|---|---|---|---|---|
| 300 × 400 | WS-GM34-50 | 305 × 490 × 50 | 12.8 | 335 × 510 × 56 | L56×6 | 7.7 |
| 400 × 400 | WS-GM44-50 | 395 × 490 × 50 | 16.5 | 425 × 510 × 56 | L56×6 | 8.6 |
| 500 × 400 | WS-GM54-50 | 485 × 490 × 50 | 20.3 | 515 × 510 × 56 | L56×6 | 9.5 |
| 300 × 500 | WS-GM35-55 | 305 × 600 × 55 | 16.7 | 335 × 620 × 60 | L60×5 | 8.2 |
| 400 × 500 | WS-GM45-55 | 395 × 600 × 55 | 21.7 | 425 × 620 × 60 | L60×5 | 9.0 |
| 500 × 500 | WS-GM55-55 | 485 × 600 × 55 | 26.6 | 515 × 620 × 60 | L60×5 | 9.8 |
| 300 × 600 | WS-GM36-65 | 305 × 720 × 65 | 26.2 | 335 × 740 × 70 | L70×5 | 10.8 |
| 500 × 600 | WS-GM56-65 | 485 × 720 × 65 | 41.6 | 515 × 740 × 70 | L70×5 | 13.1 |
| 600 × 600 | WS-GM66-65 | 605 × 720 × 65 | 51.9 | 635 × 740 × 70 | L70×5 | 14.6 |
| 500 × 700 | WS-GM57-75 | 485 × 840 × 75 | 49.9 | 515 × 860 × 80 | L80×5 | 14.5 |
| 700 × 700 | WS-GM77-75 | 695 × 840 × 75 | 68.0 | 725 × 860 × 80 | L80×5 | 17.1 |
Class T-14
| Pit W × L (mm) | Type | Grating b × a × h (mm) | kg | Bedframe b × a × h (mm) | Angle | Frame kg |
|---|---|---|---|---|---|---|
| 300 × 400 | WS-GM34-45 | 305 × 480 × 45 | 11.3 | 335 × 500 × 50 | L50×5 | 6.5 |
| 400 × 400 | WS-GM44-45 | 395 × 480 × 45 | 14.7 | 425 × 500 × 50 | L50×5 | 7.2 |
| 500 × 400 | WS-GM54-45 | 485 × 480 × 45 | 18.0 | 515 × 500 × 50 | L50×5 | 7.8 |
| 300 × 500 | WS-GM35-50 | 305 × 590 × 50 | 15.1 | 335 × 610 × 56 | L56×6 | 8.2 |
| 400 × 500 | WS-GM45-50 | 395 × 590 × 50 | 19.5 | 425 × 610 × 56 | L56×6 | 9.2 |
| 500 × 500 | WS-GM55-50 | 485 × 590 × 50 | 24.0 | 515 × 610 × 56 | L56×6 | 10.1 |
| 300 × 600 | WS-GM36-55 | 305 × 700 × 55 | 19.3 | 335 × 720 × 60 | L60×5 | 8.7 |
| 400 × 600 | WS-GM46-55 | 395 × 700 × 55 | 25.0 | 425 × 720 × 60 | L60×5 | 9.6 |
| 500 × 600 | WS-GM56-55 | 485 × 700 × 55 | 34.6 | 515 × 720 × 60 | L60×5 | 10.4 |
| 600 × 600 | WS-GM66-55 | 605 × 700 × 55 | 38.2 | 635 × 720 × 60 | L60×5 | 11.5 |
| 500 × 700 | WS-GM57-60 | 485 × 810 × 60 | 38.1 | 515 × 830 × 65 | L65×5 | 12.7 |
| 700 × 700 | WS-GM77-60 | 695 × 810 × 60 | 54.6 | 725 × 830 × 65 | L65×5 | 15.2 |
Class T-2
| Pit W × L (mm) | Type | Grating b × a × h (mm) | kg | Bedframe b × a × h (mm) | Angle | Frame kg |
|---|---|---|---|---|---|---|
| 300 × 400 | WS-GM34-32 | 305 × 454 × 32 | 7.9 | 335 × 472 × 36 | L36×4 | 4.4 |
| 400 × 400 | WS-GM44-32 | 395 × 454 × 32 | 10.3 | 425 × 472 × 36 | L36×4 | 4.8 |
| 500 × 400 | WS-GM54-32 | 485 × 454 × 32 | 12.6 | 485 × 472 × 36 | L36×4 | 5.0 |
| 300 × 500 | WS-GM35-40 | 305 × 570 × 40 | 11.9 | 335 × 590 × 45 | L45×5 | 5.9 |
| 400 × 500 | WS-GM45-40 | 395 × 570 × 40 | 15.4 | 425 × 590 × 45 | L45×5 | 6.5 |
| 500 × 500 | WS-GM55-40 | 485 × 570 × 40 | 18.9 | 515 × 590 × 45 | L45×5 | 7.2 |
| 300 × 600 | WS-GM36-40 | 305 × 670 × 40 | 13.8 | 335 × 690 × 45 | L45×5 | 6.3 |
| 400 × 600 | WS-GM46-40 | 395 × 670 × 40 | 17.9 | 425 × 690 × 45 | L45×5 | 6.9 |
| 500 × 600 | WS-GM56-40 | 485 × 670 × 40 | 21.9 | 515 × 690 × 45 | L45×5 | 7.5 |
| 600 × 600 | WS-GM66-40 | 605 × 670 × 40 | 27.4 | 635 × 690 × 45 | L45×5 | 8.3 |
| 500 × 700 | WS-GM57-45 | 485 × 780 × 45 | 28.2 | 515 × 800 × 50 | L50×5 | 8.6 |
| 700 × 700 | WS-GM77-45 | 695 × 780 × 45 | 40.4 | 725 × 800 × 50 | L50×5 | 10.2 |
Covers and bedframes are trial-fitted and supplied as matched sets. Other sizes, hinged and lockable covers are made to order.
Standards and requirements by market
Codes World Steel designs, fabricates and documents this product to – and the key geometric and load requirements in each market.
United States
- AASHTOVehicle loading H-20 / HS-20, HL-93
- ANSI/NAAMM MBG 532Heavy-Duty Metal Bar Grating Manual
- ACI 318 Ch. 17Anchoring to concrete
- AWS D1.1Structural welding code – steel
- ASTM A123Hot-dip galvanized coatings
- Road-trafficked covers
- AASHTO H-20 / HS-20 or HL-93 commonly specified
Australia / NZ
- AS 3996-2019Access covers and grates
- AS 5216Fastenings in concrete
- AS/NZS 1554.1Structural steel welding
- AS/NZS 4680Hot-dip galvanized coatings
- Load class
- Class A to G by location (AS 3996-2019)
Europe
- EN 124Gully tops and manhole tops for vehicular and pedestrian areas
- EN 1992-4Design of fastenings for use in concrete
- EN ISO 1461Hot-dip galvanized coatings
- Load class
- A15, B125, C250, D400, E600 or F900 (EN 124)
Summary for orientation only – the project specification, the adopted code edition and the authority having jurisdiction govern.
Finishes
| Finish | Standards / notes |
|---|---|
| Hot-dip galvanised (G) | ASTM A123 · AS/NZS 4680 · EN ISO 1461 |
| Duplex | Galvanised + paint for colour or C5 environments |
Frequently asked questions
How do I read a WS-GM code?
WS-GM45-55: pit 400 mm wide × 500 mm long (4 and 5 dm), cover 55 mm high. The class (T-2 to T-25) is stated with the order.
Are the frames included?
Yes – every cover is supplied with its matching angle bedframe and anchor lugs, trial-fitted in the shop.
AS/NZS 5131 CC3
EN 1090 EXC3 · CE
