|Item||Nom. Size (Inch)||Size (mm)||Long Border Width||End Border Width||Square Hole Size||Weight (kg)||Row of Holes||Columns of Holes||Airflow (mm2)||Plate Thickness (mm)|
|SH364||36 x 4||910 x 100||10||5||10||4||5||52||26000||9|
|SH365||36 x 5||914 x 127||15||6||14||6||5||44||43000||14|
|SH366||36 x 6||914 x 152||18||18||13||7||6||42||43000||12|
|SH367||36 x 7||914 x 178||11||11||14||7||8||46||72000||12|
|SH368||36 x 8||912 x 200||16||22||15||9||8||40||72000||12|
|SH369||36 x 9||910 x 227||10||13||15||9||10||44||100000||12|
|SH3610||36 x 10||914 x 253||21||23||15||11||10||40||90000||13|
|SH3611||36 x 11||910 x 273||20||20||15||11||11||40||100000||13|
|SH3612||36 x 12||913 x 300||15||23||14||13||13||41||105000||12|
|SH3615||36 x 15||914 x 380||13||22||15||17||17||41||160000||14|
|SH3618||36 x 18||914 x 456||20||11||14||20||20||42||165000||14|
|SH3621||36 x 21||914 x 533||32||18||21||33||14||26||160000||14|
|SH3030||30 x 30||765 x 765||17||17||17||27||31||31||277000||12|
British Products Made in British Foundries
Square Hole Gratings
Hugely popular because the pattern is timeless and will fit into almost any scenario being sympathetic to even the most sensitive restoration project. Larger gratings are especially useful used as walkways and pedestrian bridges over streams and water features. Properties include monasteries, theatres and period homes of all sizes in UK and USA.
Square hole gratings available in a painted black finish, with the option of drilling and mesh for an additional cost, £50 for mesh and £15 for drilling.
The cast iron bearers shown in photograph are not included and are available separately, you can browse our bearers here.
Please see product specification & sizes in the table below.
Drainage & Vent Gratings
Drainage gratings and ventilation grilles. suitable for floor installation and fitting into walls, these cast iron gratings are available in (mainly) 36" (around 900mm) lengths and in a wide range of heights.
Used with cast iron bearers, these gratings are used as narrow gullies to drain away surface water on pavements and around houses. Increasingly, they're use outside is invaluable in landscaping, providing walkways and pedestrian bridges around public gardens and dramatic exteriors.
Our cast iron gratings should be suitable for upgrading modern galvanised Aco drain covers so they look more in keeping with period property exteriors. Please see our guide "Replacing Modern Channel Grates with Authentic Cast Iron".
The narrow 4" grating is our most popular long grating for venting sub floors beneath hallways. We also sell a number of these gratings for fitting into floors to allow heat to rise from large bore central heating pipes below.
Many of these grilles will be suitable for draining water along paths and driveways and some are also suitable for driving over. Although we've tested the 21" grating with a tractor, we can't guarantee that this grating or any of our gratings will suit every situation when vehicles drive over them.
- Channel Gratings (3)
- Cast Iron Air Bricks (26)
- Flyscreen Air Bricks (3)
- Hit & Miss Air Bricks (3)
- Louvre Air Bricks (3)
- Metric Air Bricks (4)
- Ducting & Wall Sleeves (14)
- Vent & Drainage Grilles (9)
- Round Slotted Grilles (2)
- Made to Measure Square Hole Grilles (1)
- Heritage Grilles (1)
- Long Gratings (7)
- Cast Iron Bearers (1)
- Doorstep Grilles (5)
- Cellar Vents (5)
- Period Vent Grilles (7)
- Coal Hole Covers (3)