Made to Measure Square Hole Grilles Designs and Uses Cast iron grilles can be used for either drainage, as gutters or for ventilation. If used for vents they can be fitted externally or internally and either built into walls (either brick or stone) to fit flush with the wall surface and secured in place with mortar or plaster. We can also drill them so they can be screwed to the wall to fit over a hole or for added security were the grille is mounted flush with the brickwork. We do sell a lot of these grilles to go over round ducting holes used as outlets for various extractors from the kitchen, bathroom and even industrial areas. We have a guide to download that shows various size grilles over different sized bore holes available here. The grilles are supplied undrilled. We can drill these grilles at a cost of £5 per grille with 5 mm diameter holes, countersunk to take securing screws (not supplied) but please be aware the width of the border along the sides is quite narrow. Therefore we drill the grilles within the top and bottom borders as close to the corners as possible. ITEM - Drilling Drill 4 holes in corners of square hole grilles   5mm hole + countersunk £5 per grille (Please alter quantity to match number of grilles requiring drilling) Please Note   The photographs on the right and below show examples of 5" (127mm) gratings cut to various lengths (clearly showing 5 rows of holes). The grille we make for you is unique - it won't be made until you order it. Therefore, apart from these illustrations, we do not have photographs of the exact grille to show you. Customers can gain a good idea of how their grille will look when it is finished. This illustration shows three  5" (127mm) square hole grilles cut to various lengths and the specifications below that show the number of rows, hole sizes and grille thickness for all the grille heights available ranging from 4" 100mm up to 15" 380mm.   SPECIFICATIONS Cast Iron Square Hole Gratings Made to Measure - any length from 2" (50mm) up to 36" (915mm) Item Grille Height inches Grille Height mm Top & Bottom Border mm End Border widths mm Rows of holes Square Hole Size Plate Thick mm MTM4  4  100 10 4 5 10 9 MTM5  5  127 15 4 5 14 14 MTM6  6  152 18 5 6 13 12 MTM7  7  178 11 5 8 14 12 MTM8  8  200 16 6 8 15 12 MTM9  9  227 10 6 10 15 12 MTM10  10  253 21 6 10 15 13 MTM11  11  273 20 6 11 15 13 MTM12  12  300 15 7 13 14 12 MTM15  15  380 13 6 17 15 14 Customer Illustration  Grade II listed property Nr. Exeter, England Tim Bucknall of The Bucknall Partnership Installation of cast iron grating into kitchen wall. Cast Iron Air Brick Company Product Used... Item MTM6Medium Date January 2012 Prices quoted are excluding vat Worldwide shipping available on all these items Copper Flyscreen Mesh Cut to Size for made to Measure Square Hole Grilles email length required Length up to 200mm (8") ITEM - MTMMESHS Length 205 (8") to 450mm (18") ITEM - MTMMESHM Length 455 (18") to 915mm (36") ITEM - MTMMESHL £15 Short Length £35 Medium Length £50 Long Length In Stock Estimated 4-5 days to Deliver   British Designs and British Castings All our cast iron grilles shown here are made in the UK, they are cast in long lengths in foundries in Scotland and cut to size and painted in our workshop in Devon, England.  All purchases made from The Cast Iron Air Brick Company  support British manufacturing........... Because all our products are made in UK Painted Grilles Our cast iron products contain iron, nearly 100% iron to be precise and this iron will rust if it isn't kept protected from moisture and air.  These grilles are supplied primed and then painted using a two-part professional epoxy black gloss paint which will need repainting from time to time. Credit Cards Accepted - No Pay Pal Account Required Buy online for 2% discount Made To Measure Photographs are for illustration purposes only. Prices quoted are excluding vat 4" (100mm) High Square Hole Grille email length required 4" (100mm) high Length up to 200mm (8") ITEM - MTM4 Short  Length 205 (8") to 450mm (18") ITEM - MTM4 Medium Length 455 (18") to 915mm (36") ITEM - MTM4 Long £89.99 Short Length £135.99 Medium Length £179.99 Long Length In Stock Estimated 4-5 days to Deliver   5" (125mm) High Square Hole Grille email length required 5" (127mm) high Length up to 200mm (8") ITEM - MTM5 Short  Length 205 (8") to 450mm (18") ITEM - MTM5 Medium Length 455 (18") to 915mm (36") ITEM - MTM5 Long £99.99 Short Length £149.99 Medium Length £199.99 Long Length In Stock Estimated 4-5 days to Deliver   6" (150mm)High Square Hole Grille email length required 6" (152mm) high Length up to 200mm (8") ITEM - MTM6 Short  Length 205 (8") to 450mm (18") ITEM - MTM6 Medium Length 455 (18") to 915mm (36") ITEM - MTM6 Long £99.99 Short Length £149.99 Medium Length £199.99 Long Length In Stock Estimated 4-5 days to Deliver   7" (175mm) High Square Hole Grille email length required 7" (178mm) high Length up to 200mm (8") ITEM - MTM7 Short  Length 205 (8") to 450mm (18") ITEM - MTM7 Medium Length 455 (18") to 915mm (36") ITEM - MTM7 Long £129.99 Short Length £174.99 Medium Length £239.99 Long Length In Stock Estimated 4-5 days to Deliver   8" (200mm) High Square Hole Grille email length required 8" (200mm) high Length up to 200mm (8") ITEM - MTM8 Short  Length 205 (8") to 450mm (18") ITEM - MTM8 Medium Length 455 (18") to 915mm (36") ITEM - MTM8 Long £154.99 Short Length £199.99 Medium Length £259.99 Long Length In Stock Estimated 4-5 days to Deliver   9" (225mm) High Square Hole Grille email length required 9" (227mm) high Length up to 450mm (18") ITEM - MTM9 Medium  Length 455 (18") to 915mm (36") ITEM - MTM9 Long £199.99 Medium Length £279.99 Long Length In Stock Estimated 4-5 days to Deliver   10" (250mm) High Square Hole Grille email length required 10" (253mm) high Length up to 450mm (18") ITEM - MTM10 Medium  Length 455 (18") to 915mm (36") ITEM - MTM10 Long £199.99 Medium Length £289.99 Long Length In Stock Estimated 4-5 days to Deliver   11" (275mm) High Square Hole Grille email length required 11" (273mm) high Length up to 450mm (18") ITEM - MTM11 Medium  Length 455 (18") to 915mm (36") ITEM - MTM11 Long £219.99 Medium Length £329.99 Long Length In Stock Estimated 4-5 days to Deliver   12" (305mm) High Square Hole Grille email length required 12" (300mm) high Length up to 450mm (18") ITEM - MTM12 Medium  Length 455 (18") to 915mm (36") ITEM - MTM12 Long £219.99 Medium Length £329.99 Long Length In Stock Estimated 4-5 days to Deliver   15" (380mm) High Square Hole Grille email length required 15" (380mm) high Length up to 450mm (18") ITEM - MTM15 Medium  Length 455 (18") to 915mm (36") ITEM - MTM15 Long £249.99 Medium Length £369.99 Long Length In Stock Estimated 4-5 days to Deliver