{"title":"GI Grating","description":"","products":[{"product_id":"galvanized-iron-gratings-gi-gratings","title":"Galvanized Iron Gratings (GI Gratings)","description":"\u003cp\u003eGalvanized iron gratings are load bearing steel panels, hot dip galvanized after fabrication so the coating covers every cut edge and weld. The open grid drains water, passes light and air, and carries foot or vehicle traffic. Seen Steel supplies GI gratings across all seven emirates, cut to your panel sizes and delivered to your yard.\u003c\/p\u003e\n\u003ch2\u003eBearing bar sizes and pitch\u003c\/h2\u003e\n\u003cp\u003eThe bearing bar is the load carrying bar that runs in the span direction. Pitch is the centre to centre spacing between bearing bars. Together they decide how much load the panel carries and how much it weighs.\u003c\/p\u003e\n\u003cdiv style=\"overflow-x:auto\"\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eBearing bar (depth x thickness)\u003c\/th\u003e\n\u003cth\u003eCommon pitch\u003c\/th\u003e\n\u003cth\u003eTypical use\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e20 x 3 mm\u003c\/td\u003e\n\u003ctd\u003e30 \/ 40 mm\u003c\/td\u003e\n\u003ctd\u003eLight duty walkways, covers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e25 x 3 mm\u003c\/td\u003e\n\u003ctd\u003e30 \/ 40 mm\u003c\/td\u003e\n\u003ctd\u003ePlatforms, light foot traffic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e25 x 5 mm\u003c\/td\u003e\n\u003ctd\u003e30 \/ 40 mm\u003c\/td\u003e\n\u003ctd\u003eGeneral industrial flooring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e32 x 3 mm\u003c\/td\u003e\n\u003ctd\u003e30 \/ 40 mm\u003c\/td\u003e\n\u003ctd\u003eWalkways with longer spans\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e32 x 5 mm\u003c\/td\u003e\n\u003ctd\u003e30 \/ 40 mm\u003c\/td\u003e\n\u003ctd\u003ePlant flooring, trench covers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e40 x 3 mm\u003c\/td\u003e\n\u003ctd\u003e30 \/ 40 mm\u003c\/td\u003e\n\u003ctd\u003ePlatforms, moderate spans\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e40 x 5 mm\u003c\/td\u003e\n\u003ctd\u003e30 \/ 40 mm\u003c\/td\u003e\n\u003ctd\u003eHeavy foot traffic, light vehicles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e45 x 5 mm\u003c\/td\u003e\n\u003ctd\u003e30 \/ 40 mm\u003c\/td\u003e\n\u003ctd\u003eHeavy duty flooring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e50 x 5 mm\u003c\/td\u003e\n\u003ctd\u003e30 \/ 40 mm\u003c\/td\u003e\n\u003ctd\u003eVehicle access, long spans\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e55 x 5 mm\u003c\/td\u003e\n\u003ctd\u003e30 \/ 40 mm\u003c\/td\u003e\n\u003ctd\u003eHeavy vehicle loading\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e60 x 5 mm\u003c\/td\u003e\n\u003ctd\u003e30 \/ 40 mm\u003c\/td\u003e\n\u003ctd\u003eHeaviest duty, longest spans\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cp\u003eCross bars are normally 6 mm twisted square bar at 100 mm centres. 50 mm centres are used where a more rigid panel or a smaller open area is wanted.\u003c\/p\u003e\n\u003ch2\u003eNominal weight per square metre\u003c\/h2\u003e\n\u003cp\u003eFigures below are calculated from bar geometry at 7.85 g\/cm³, with 6 mm twisted square cross bars at 100 mm centres. They are bare steel weights. Hot dip galvanizing adds roughly 3 to 5 per cent, and banding bars or frames add more, so treat these as estimating figures and confirm the final weight against the fabrication drawing.\u003c\/p\u003e\n\u003cdiv style=\"overflow-x:auto\"\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eBearing bar\u003c\/th\u003e\n\u003cth\u003ePitch 30 mm (kg\/m²)\u003c\/th\u003e\n\u003cth\u003ePitch 40 mm (kg\/m²)\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e25 x 3 mm\u003c\/td\u003e\n\u003ctd\u003e22.5\u003c\/td\u003e\n\u003ctd\u003e17.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e25 x 5 mm\u003c\/td\u003e\n\u003ctd\u003e35.5\u003c\/td\u003e\n\u003ctd\u003e27.4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e32 x 3 mm\u003c\/td\u003e\n\u003ctd\u003e27.9\u003c\/td\u003e\n\u003ctd\u003e21.7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e32 x 5 mm\u003c\/td\u003e\n\u003ctd\u003e44.7\u003c\/td\u003e\n\u003ctd\u003e34.2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e40 x 3 mm\u003c\/td\u003e\n\u003ctd\u003e34.2\u003c\/td\u003e\n\u003ctd\u003e26.4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e40 x 5 mm\u003c\/td\u003e\n\u003ctd\u003e55.2\u003c\/td\u003e\n\u003ctd\u003e42.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e50 x 5 mm\u003c\/td\u003e\n\u003ctd\u003e68.2\u003c\/td\u003e\n\u003ctd\u003e51.9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e60 x 5 mm\u003c\/td\u003e\n\u003ctd\u003e81.3\u003c\/td\u003e\n\u003ctd\u003e61.7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003ch2\u003ePanel sizes\u003c\/h2\u003e\n\u003cp\u003eA common reference panel under BS 4592 is 1220 x 850 mm, in 25 mm and 40 mm depths. In practice most UAE jobs are cut to size. Send your opening dimensions and we cut and band the panels to suit, including cut outs for pipes, columns and handrail posts.\u003c\/p\u003e\n\u003ch2\u003eGalvanizing\u003c\/h2\u003e\n\u003cp\u003ePanels are hot dip galvanized to EN ISO 1461 after fabrication, so cut ends, welds and the inside faces of the grid are all coated. This matters in the UAE: coastal humidity and salt spray attack painted or pre galvanized edges first, and a post fabrication dip removes that weak point.\u003c\/p\u003e\n\u003ch2\u003ePlain or serrated\u003c\/h2\u003e\n\u003cp\u003ePlain bar is the standard and suits most dry internal platforms. Serrated bar has a notched top edge that gives grip underfoot and is the right choice for external walkways, wash down areas, oil and gas plant, and anywhere the surface sees water, grease or fine sand.\u003c\/p\u003e\n\u003ch2\u003eSteel grade\u003c\/h2\u003e\n\u003cp\u003eBearing bars are normally supplied in mild steel to ASTM A36, BS 4360 Grade 43A or equivalent, with yield around 265 to 300 N\/mm² and tensile 400 to 460 N\/mm². Mill test certificates are issued with the material.\u003c\/p\u003e\n\u003ch2\u003eA note on load capacity\u003c\/h2\u003e\n\u003cp\u003eSafe load depends on the clear span, the support condition at each end, and whether the load is uniform or a point load, so a single number for a bar size is meaningless on its own. Tell us the clear span and the load you need to carry and we will confirm the bar size and pitch that meets it rather than guessing from a catalogue.\u003c\/p\u003e\n\u003ch2\u003eCommon applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eIndustrial flooring, plant platforms and mezzanines\u003c\/li\u003e\n\u003cli\u003eDrainage covers and trench grates\u003c\/li\u003e\n\u003cli\u003eStair treads, with nosing where specified\u003c\/li\u003e\n\u003cli\u003eOil and gas facilities and process plant\u003c\/li\u003e\n\u003cli\u003eMarine, jetty and offshore structures\u003c\/li\u003e\n\u003cli\u003eSubstation and generator enclosure flooring\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhat to send for a quote\u003c\/h2\u003e\n\u003cp\u003eThe more of this you include, the fewer rounds of questions before you get a rate:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBearing bar size and pitch, or the clear span and load if you would rather we size it\u003c\/li\u003e\n\u003cli\u003ePanel sizes, or the opening dimensions to cut to\u003c\/li\u003e\n\u003cli\u003ePlain or serrated\u003c\/li\u003e\n\u003cli\u003eTotal area in square metres, or number of panels\u003c\/li\u003e\n\u003cli\u003eWhether you need banding bars, frames, cut outs or stair nosings\u003c\/li\u003e\n\u003cli\u003eDelivery location\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eCan you cut gratings to size?\u003c\/strong\u003e\u003cbr\u003eYes. Send the opening dimensions and we supply cut and banded panels, including cut outs.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the difference between GI grating and MS grating?\u003c\/strong\u003e\u003cbr\u003eThey are the same mild steel panel. GI simply means it has been hot dip galvanized. Bare MS grating will show rust within weeks in UAE humidity, so galvanized is the normal specification for anything outdoors.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo you supply mill test certificates?\u003c\/strong\u003e\u003cbr\u003eYes, MTCs are issued with the material.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow long does delivery take?\u003c\/strong\u003e\u003cbr\u003eStandard bar sizes move quickly. Cut to size panels depend on the fabrication queue. We confirm a date in writing with the quotation rather than after the order.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhich emirates do you deliver to?\u003c\/strong\u003e\u003cbr\u003eAll seven. Dubai, Abu Dhabi, Sharjah, Ajman, Umm Al Quwain, Ras Al Khaimah and Fujairah, delivered to your yard.\u003c\/p\u003e\n\u003cp\u003eSend your grating requirement on WhatsApp at +971 56 227 5722 or email seensteelfze@gmail.com and we will come back with a rate.\u003c\/p\u003e","brand":"Seen Steel FZ LLC","offers":[{"title":"Default Title","offer_id":46939899625623,"sku":null,"price":1.0,"currency_code":"AED","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0703\/7589\/9287\/files\/1_8821bdd7-ec09-463d-a1d6-645d91aa4fe7.jpg?v=1771933942"}],"url":"https:\/\/seensteel.com\/collections\/gi-grating.oembed","provider":"Seen Steel FZ LLC","version":"1.0","type":"link"}