{"product_id":"aluminium-coping-corner-90-degree","title":"2mm Aluminium Sloping Coping – 90° External Corner | 100mm External Leg","description":"\u003cp dir=\"ltr\"\u003e\u003cspan\u003eEvery right-angle external corner on a sloping coping parapet run needs this piece. The 90° external corner sits at the outside junction where two parapet faces meet at a right angle and the coping profile turns around the corner of the building. It carries the same 100mm external leg and built-in slope as the \u003c\/span\u003e\u003ca href=\"https:\/\/onlinemetalstore.co.uk\/products\/aluminium-coping-system-1m-length\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan\u003estraight coping lengths\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e in the same system, giving a continuous, flush profile around the full perimeter with no exposed end cuts or filler pieces at the corner position.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eAvailable in the same 29 width sizes as the sloping coping lengths, powder coated in any RAL colour, and fabricated to order at the Online Metal Store Ltd facility in Chelmsford, Essex. One corner piece is required per external right-angle corner on the parapet run.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThis corner is part of the 2mm aluminium sloping coping system with a 100mm external leg. It is compatible with the 1m, 2m and 3m coping lengths in the same range and uses the same \u003c\/span\u003e\u003ca href=\"https:\/\/onlinemetalstore.co.uk\/products\/4mm-aluminium-coping-bracket\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan\u003e4mm aluminium coping bracket\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e as the rest of the system. For the 125mm external leg version of this corner, see the \u003c\/span\u003e\u003ca href=\"https:\/\/onlinemetalstore.co.uk\/products\/aluminium-coping-corner-90-degrees\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan\u003e90° external corner for the 125mm system\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e.\u003c\/span\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003ch2 dir=\"ltr\"\u003e\u003cspan\u003eExternal Corner or Internal Corner: Which Do You Need?\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThis is the most common question on a coping corner page, and getting it wrong means ordering the wrong product. Here is how to tell them apart:\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 dir=\"ltr\"\u003e\u003cspan\u003eExternal Corner (This Product)\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eAn external corner sits at an outside corner of the building, where the parapet wall projects outward and the coping wraps around the corner of the structure. Stand on the ground looking at the building: if the corner sticks toward you, it is an external corner. On a rectangular rear extension, all four corners are external corners. This is the most common corner type on domestic and commercial parapets.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 dir=\"ltr\"\u003e\u003cspan\u003eInternal Corner\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eAn internal corner sits at a re-entrant angle, where the parapet forms an inside corner and the coping profile turns inward. These appear on complex building plans, stepped extensions, and any parapet that forms a recessed bay or an L-shaped plan. If the corner angles away from you when you stand looking at the building, it is an internal corner. The \u003c\/span\u003e\u003ca href=\"https:\/\/onlinemetalstore.co.uk\/products\/aluminium-coping-corner-90\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan\u003e90° internal corner\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e is available from the same 2mm 100mm sloping coping system.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 dir=\"ltr\"\u003e\u003cspan\u003e90° vs 135° Corners\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eBoth external and internal corners are available in 90° and 135° versions. A 90° corner fits a parapet wall that meets at a right angle, which covers most rectangular building plans. A 135° corner fits a parapet that meets at an obtuse angle, common on chamfered building corners, bay windows, and contemporary buildings with angled plan forms. If the parapet walls meet at 135° rather than 90°, use the \u003c\/span\u003e\u003ca href=\"https:\/\/onlinemetalstore.co.uk\/products\/aluminium-coping-corner-135\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan\u003e135° external corner\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e instead of this product.\u003c\/span\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003ch2 dir=\"ltr\"\u003e\u003cspan\u003eKey Benefits\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eFlush, continuous profile: \u003c\/span\u003e\u003cspan\u003ethe corner profile matches the leg dimensions and slope angle of the straight coping lengths exactly. No visible step, gap or filler piece at the corner junction.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eBuilt-in slope: \u003c\/span\u003e\u003cspan\u003ethe slope carries through the corner piece in both directions, maintaining active surface drainage around the external angle and preventing water from sitting at the corner position.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003e29 sizes to match your lengths: \u003c\/span\u003e\u003cspan\u003esame 185mm to 885mm size range as the coping lengths. Order the same size as your straight run sections.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003ePowder coated in any RAL: \u003c\/span\u003e\u003cspan\u003ecolour-matched to the straight sections, stopends and brackets when ordered together in the same RAL at the same time.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eMade to order in Chelmsford: \u003c\/span\u003e\u003cspan\u003efabricated at the same UK facility as the rest of the system. Non-returnable unless faulty.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eSystem-compatible: \u003c\/span\u003e\u003cspan\u003efits directly onto the same 4mm concealed bracket as the straight lengths. No special fixings or additional components required at the corner position.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 dir=\"ltr\"\u003e\u003cspan\u003eTechnical Specifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eMaterial: \u003c\/strong\u003e\u003cspan\u003e2mm grade aluminium\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003e\u003cstrong\u003eProfile:\u003c\/strong\u003e \u003c\/span\u003e\u003cspan\u003eSloping coping corner\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eCorner Angle: \u003c\/strong\u003e\u003cspan\u003e90 degrees external\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eExternal Leg: \u003c\/strong\u003e\u003cspan\u003e100mm\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003e\u003cstrong\u003eInternal Leg:\u003c\/strong\u003e \u003c\/span\u003e\u003cspan\u003e75mm\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eWidth Sizes: \u003c\/strong\u003e\u003cspan\u003e185mm, 210mm, 235mm, 260mm, 285mm, 310mm, 335mm, 360mm, 385mm, 410mm, 435mm, 460mm, 485mm, 510mm, 535mm, 560mm, 585mm, 610mm, 635mm, 660mm, 685mm, 710mm, 735mm, 760mm, 785mm, 810mm, 835mm, 860mm, 885mm (29 sizes in 25mm increments)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003e\u003cstrong\u003eSize Rule:\u003c\/strong\u003e \u003c\/span\u003e\u003cspan\u003eOrder the same size as your straight coping lengths\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003e\u003cstrong\u003eSizing Formula:\u003c\/strong\u003e \u003c\/span\u003e\u003cspan\u003eWall width + 195mm = size to order (same as the coping lengths)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003e\u003cstrong\u003eFinish:\u003c\/strong\u003e \u003c\/span\u003e\u003cspan\u003ePolyester powder coating, external grade\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003e\u003cstrong\u003eColour:\u003c\/strong\u003e \u003c\/span\u003e\u003cspan\u003eAny RAL colour to order\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003e\u003cstrong\u003eCompatible Bracket:\u003c\/strong\u003e \u003c\/span\u003e\u003cspan\u003e4mm Aluminium Coping Bracket\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eCompatible System: \u003c\/strong\u003e\u003cspan\u003e2mm Aluminium Sloping Coping | 100mm External Leg\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003e\u003cstrong\u003eFabrication:\u003c\/strong\u003e \u003c\/span\u003e\u003cspan\u003eMade to order -- non-returnable unless faulty\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eCountry of Origin: \u003c\/strong\u003e\u003cspan\u003eUnited Kingdom (Chelmsford, Essex)\u003c\/span\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003ch2 dir=\"ltr\"\u003e\u003cspan\u003eOrder the Same Size as Your Coping Lengths\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe 29 size options from 185mm to 885mm refer to the overall WIDTH of the coping profile at the corner, from external leg tip to internal leg tip. This is identical to the sizing of the straight coping lengths in the same system. If you have already calculated the correct size for your straight sections using the formula wall width + 195mm, that same size applies here.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eIf you have not yet calculated your size:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eMeasure the parapet wall width at the top from outside face to inside face.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eAdd 195mm (100mm external leg + 75mm internal leg + 10mm + 10mm returns).\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eThe result is the size to order for both the lengths and the corners.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eA 190mm wide wall gives 385mm. A 265mm wall gives 460mm. A 340mm wall gives 535mm.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eIf the result falls between two available sizes, select the next size up.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 dir=\"ltr\"\u003e\u003cspan\u003eHow Many Corner Pieces Do You Need?\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eCount the number of external right-angle corners on your parapet plan. One corner piece is required per corner, not per linear metre. On a straightforward rectangular parapet, there are four external corners and you need four pieces.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eOn more complex building plans, count carefully:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eRectangular parapet (four equal faces): 4 external corners.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eL-shaped parapet plan: typically 2 external corners and 1 internal corner (use the internal corner product at re-entrant angles).\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eBuilding with a projecting bay: additional external corners at each angle of the projection.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eAny 135-degree angle in the plan: use the 135-degree corner product, not this 90-degree version.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 dir=\"ltr\"\u003e\u003cspan\u003eInstallation\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eFix the \u003c\/span\u003e\u003ca href=\"https:\/\/onlinemetalstore.co.uk\/products\/4mm-aluminium-coping-bracket\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan\u003e4mm aluminium coping brackets\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e along the run as normal. Position a bracket within 150-200mm of the corner piece on each leg of the corner. The corner piece itself does not typically carry a separate bracket beneath it; the bracket support comes from the positions closest to the corner on the adjacent straight sections.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003ePress the corner piece onto the brackets at the corner position and butt the straight sections up to it from each leg. Apply a continuous bead of \u003c\/span\u003e\u003ca href=\"https:\/\/onlinemetalstore.co.uk\/products\/colour-coded-sealant-300ml\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan\u003ecolour coded sealant\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e in the matching RAL to the internal face of each joint where the straight section meets the corner piece. The sealant bead at these joints is the primary weathertight seal. On an exposed parapet, both legs of the corner receive a sealant application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eLock the adjacent coping sections to their brackets using \u003c\/span\u003e\u003ca href=\"https:\/\/onlinemetalstore.co.uk\/products\/timber-fasteners-ral\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan\u003ecolour coded fasteners\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e in the matching RAL. Apply a neat finishing sealant bead on all external joint faces at the corner position, including both legs of the junction.\u003c\/span\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003ch2 dir=\"ltr\"\u003e\u003cspan\u003eWhere This Corner Piece Is Used\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3 dir=\"ltr\"\u003e\u003cspan\u003eRectangular Flat Roof Extensions\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe most common application. A single-storey rear extension with a rectangular flat roof has four external parapet corners, each requiring one of these pieces. The corner provides a factory-formed, consistent profile at each building corner, matching the straight \u003c\/span\u003e\u003ca href=\"https:\/\/onlinemetalstore.co.uk\/products\/aluminium-coping-3m\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan\u003e3m coping lengths\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e on each face.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 dir=\"ltr\"\u003e\u003cspan\u003eBox Dormers\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eA box dormer typically has two 90° external corners where the front parapet meets the side returns. Each corner requires one of these pieces. The corner gives a clean finished junction at the most visible angles of the dormer installation, paired with \u003c\/span\u003e\u003ca href=\"https:\/\/onlinemetalstore.co.uk\/products\/aluminium-coping-stopend-left-hand\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan\u003eclosed stopends\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e at the ends of the side returns.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 dir=\"ltr\"\u003e\u003cspan\u003eParapets with Multiple Building Projections\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eCommercial buildings with projecting elements, plant room enclosures and stepped plan forms generate multiple external corners across the parapet perimeter. Counting these accurately before ordering avoids shortage mid-installation on a made-to-order non-returnable product.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 dir=\"ltr\"\u003e\u003cspan\u003eBoundary and Garden Walls\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eLow boundary walls and garden walls with aluminium sloping coping use the same corner piece at every right-angle junction. On a garden wall with a gate pier or a corner post, the 90° external corner gives a neat coping transition that the straight sections alone cannot provide.\u003c\/span\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003ch2 dir=\"ltr\"\u003e\u003cspan\u003eWhy Aluminium for Coping Corners\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eCoping corners are the most vulnerable position in any parapet run. They face the full weather exposure of two wall faces simultaneously, and a poorly formed or incorrectly sealed corner is the most common source of parapet water ingress on flat-roofed buildings. A factory-pressed aluminium corner profile, fabricated to the correct dimensions and fitted with a full sealant joint on each leg, removes the risk of a site-formed corner detail that relies on individual workmanship for its weathertightness.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe alternative to a purpose-made aluminium corner is a mitred joint between two straight sections. Mitred corners on aluminium coping are difficult to seal effectively and are a known long-term failure point. A factory-formed corner piece with the slope correctly resolved through the turn is the technically correct solution for every right-angle change of direction in a sloping coping run.\u003c\/span\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003ch2 dir=\"ltr\"\u003e\u003cspan\u003eWhy Choose Online Metal Store Ltd\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eEvery component in the 2mm sloping coping 100mm system is manufactured at our Chelmsford facility. Corner pieces, lengths, stopends and brackets are all made to the same dimensional specification and finished in the same polyester powder coat process. When you order all system components together in the same RAL, they come from the same coating batch and arrive colour-matched. There is no tolerance variation between a corner ordered separately and a length ordered at a different time. \u003c\/span\u003e\u003ca href=\"https:\/\/onlinemetalstore.co.uk\/pages\/contact\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan\u003eContact our team\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e to discuss your system requirements, confirm your wall width dimensions, or get a quote for the full perimeter order including lengths, corners, stopends and brackets.\u003c\/span\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003ch3 dir=\"ltr\"\u003e\u003cspan\u003eComplete Your 2mm Sloping Coping 100mm System\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eEvery component you need for a complete installation:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003ca href=\"https:\/\/onlinemetalstore.co.uk\/products\/aluminium-coping-system-1m-length\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan\u003e2mm Sloping Coping – 1m Length | 100mm External Leg\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003ca href=\"https:\/\/onlinemetalstore.co.uk\/products\/2mm-aluminium-sloping-coping\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan\u003e2mm Sloping Coping – 2m Length | 100mm External Leg\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003ca href=\"https:\/\/onlinemetalstore.co.uk\/products\/aluminium-coping-3m\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan\u003e2mm Sloping Coping – 3m Length | 100mm External Leg\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003e2mm Sloping Coping – 90° External Corner | 100mm External Leg (this product)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003ca href=\"https:\/\/onlinemetalstore.co.uk\/products\/aluminium-coping-corner-90\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan\u003e2mm Sloping Coping – 90° Internal Corner | 100mm External Leg\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003ca href=\"https:\/\/onlinemetalstore.co.uk\/products\/aluminium-coping-corner-135\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan\u003e2mm Sloping Coping – 135° External Corner | 100mm External Leg\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003ca href=\"https:\/\/onlinemetalstore.co.uk\/products\/aluminium-coping-corner-135-1\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan\u003e2mm Sloping Coping – 135° Internal Corner | 100mm External Leg\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003ca href=\"https:\/\/onlinemetalstore.co.uk\/products\/aluminium-coping-stopend-left-hand\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan\u003e2mm Sloped Coping – Left Handed Closed Stopend | 100mm External Leg\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003ca href=\"https:\/\/onlinemetalstore.co.uk\/products\/aluminium-coping-stopend-100mm\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan\u003e2mm Sloped Coping – Right Handed Closed Stopend | 100mm External Leg\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003ca href=\"https:\/\/onlinemetalstore.co.uk\/products\/4mm-aluminium-coping-bracket\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan\u003e4mm Aluminium Coping Bracket\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003ca href=\"https:\/\/onlinemetalstore.co.uk\/products\/colour-coded-sealant-300ml\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan\u003eColour Coded Sealant 300ml\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003ca href=\"https:\/\/onlinemetalstore.co.uk\/products\/timber-fasteners-ral\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan\u003eColour Coded Fasteners (Timber)\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eFor the full sloping coping system overview including 125mm external leg and 3mm commercial gauge versions, visit the \u003c\/span\u003e\u003ca href=\"https:\/\/onlinemetalstore.co.uk\/pages\/aluminium-sloping-coping\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan\u003eAluminium Sloping Coping collection page\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e. To see how the system looks on a completed installation, view the \u003c\/span\u003e\u003ca href=\"https:\/\/onlinemetalstore.co.uk\/pages\/aluminium-sloped-coping-case-study-london\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan\u003ealuminium sloped coping case study\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e.\u003c\/span\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003ch2 dir=\"ltr\"\u003e\u003cspan\u003eFrequently Asked Questions\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch4 dir=\"ltr\"\u003e\u003cspan\u003eWhat is the difference between an external and internal coping corner?\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eAn external corner sits at an outside angle of the parapet, where the wall projects toward you as you look at the building. This is the most common corner type on rectangular buildings. An internal corner sits at a re-entrant angle, where the parapet forms an inside angle and the wall steps away from you. On a rectangular extension, all four corners are external. If your building has an L-shaped or complex plan, you may need both external and internal corners at different positions. The \u003c\/span\u003e\u003ca href=\"https:\/\/onlinemetalstore.co.uk\/products\/aluminium-coping-corner-90\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan\u003e90° internal corner\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e is available in the same system.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4 dir=\"ltr\"\u003e\u003cspan\u003eWhat size corner do I order?\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe same size as your straight coping lengths. If you have already worked out the coping size using wall width + 195mm, that is the size for both the lengths and the corner pieces. A 190mm wide parapet wall needs the 385mm size throughout the system, including at the corners.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4 dir=\"ltr\"\u003e\u003cspan\u003eHow many corner pieces do I need?\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eOne per external right-angle corner on the parapet plan. A standard rectangular flat roof extension has four external corners and needs four pieces. Count the corners on your drawing or measure on site before ordering. On non-rectangular plans, count carefully and distinguish between 90° and 135° angles to order the correct corner type at each position.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4 dir=\"ltr\"\u003e\u003cspan\u003eDoes the corner use the same bracket as the straight lengths?\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eYes. The \u003c\/span\u003e\u003ca href=\"https:\/\/onlinemetalstore.co.uk\/products\/4mm-aluminium-coping-bracket\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan\u003e4mm aluminium coping bracket\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e is the correct bracket for all components in the 2mm sloping coping 100mm system, including the corner pieces. Position brackets within 150-200mm of the corner piece on each leg of the adjacent straight sections. You do not normally need an additional bracket directly beneath the corner piece itself.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4 dir=\"ltr\"\u003e\u003cspan\u003eCan I use this corner with the 125mm external leg system?\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eNo. This corner is fabricated for the 100mm external leg system. The 125mm system uses a different corner profile with wider legs. Using a 100mm corner on a 125mm installation produces a mismatch at the junction. For the 125mm external leg system, use the \u003c\/span\u003e\u003ca href=\"https:\/\/onlinemetalstore.co.uk\/products\/aluminium-coping-corner-90-degrees\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan\u003e90° external corner for the 125mm system\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4 dir=\"ltr\"\u003e\u003cspan\u003eDo I need to sealant both legs of the corner?\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eYes. Apply a continuous bead of colour coded sealant in the matching RAL to the internal face of both joints where the straight sections butt up to the corner piece. Both legs of the corner are exposed to weather and both sealant joints are part of the weathertight line. Do not seal only one leg and leave the other to rely on the close fit of the profiles.\u003c\/span\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003ch2 dir=\"ltr\"\u003e\u003cspan\u003eReady to Order?\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eSelect the size that matches your straight coping lengths from the dropdown above, choose your RAL colour, and add to basket. If you are ordering a full perimeter system and want to confirm your corner count, discuss the section mix, or get a quote for lengths, corners, stopends and brackets together, contact our team at \u003c\/span\u003e\u003cstrong\u003esales@onlinemetalstore.co.uk\u003c\/strong\u003e\u003cspan\u003e\u003cstrong\u003e \u003c\/strong\u003eor call\u003cstrong\u003e +44 7907 239290\u003c\/strong\u003e, Monday to Saturday 6:30am to 4:30pm.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cb id=\"docs-internal-guid-0d631ccc-7fff-bba2-e9cd-aace6a910fdd\"\u003e\u003c\/b\u003eCustom Fabricated Item: Made to order. Please check your measurements before ordering. Non-returnable unless faulty. See our \u003ca href=\"https:\/\/onlinemetalstore.co.uk\/pages\/returns-policy\" target=\"_blank\" rel=\"noopener\"\u003eRefund and Returns Policy\u003c\/a\u003e for full details.\u003c\/p\u003e","brand":"Online Metal Store Ltd","offers":[{"title":"185mm","offer_id":42314538582100,"sku":"AC2-E90-100-185","price":57.6,"currency_code":"GBP","in_stock":true},{"title":"210mm","offer_id":42314538614868,"sku":"AC2-E90-100-210","price":60.12,"currency_code":"GBP","in_stock":true},{"title":"235mm","offer_id":42314538647636,"sku":"AC2-E90-100-235","price":62.64,"currency_code":"GBP","in_stock":true},{"title":"260mm","offer_id":42314538680404,"sku":"AC2-E90-100-260","price":65.16,"currency_code":"GBP","in_stock":true},{"title":"285mm","offer_id":42314538713172,"sku":"AC2-E90-100-285","price":67.68,"currency_code":"GBP","in_stock":true},{"title":"310mm","offer_id":42314538745940,"sku":"AC2-E90-100-310","price":70.2,"currency_code":"GBP","in_stock":true},{"title":"335mm","offer_id":42314538778708,"sku":"AC2-E90-100-335","price":72.72,"currency_code":"GBP","in_stock":true},{"title":"360mm","offer_id":42314538811476,"sku":"AC2-E90-100-360","price":75.24,"currency_code":"GBP","in_stock":true},{"title":"385mm","offer_id":42314538844244,"sku":"AC2-E90-100-385","price":77.76,"currency_code":"GBP","in_stock":true},{"title":"410mm","offer_id":42314538877012,"sku":"AC2-E90-100-410","price":80.28,"currency_code":"GBP","in_stock":true},{"title":"435mm","offer_id":42314538909780,"sku":"AC2-E90-100-435","price":82.8,"currency_code":"GBP","in_stock":true},{"title":"460mm","offer_id":42314538942548,"sku":"AC2-E90-100-460","price":85.32,"currency_code":"GBP","in_stock":true},{"title":"485mm","offer_id":42314538975316,"sku":"AC2-E90-100-485","price":87.84,"currency_code":"GBP","in_stock":true},{"title":"510mm","offer_id":42314539008084,"sku":"AC2-E90-100-510","price":90.36,"currency_code":"GBP","in_stock":true},{"title":"535mm","offer_id":42314539040852,"sku":"AC2-E90-100-535","price":92.88,"currency_code":"GBP","in_stock":true},{"title":"560mm","offer_id":42314539073620,"sku":"AC2-E90-100-560","price":95.4,"currency_code":"GBP","in_stock":true},{"title":"585mm","offer_id":42314539106388,"sku":"AC2-E90-100-585","price":97.92,"currency_code":"GBP","in_stock":true},{"title":"610mm","offer_id":42314539139156,"sku":"AC2-E90-100-610","price":100.44,"currency_code":"GBP","in_stock":true},{"title":"635mm","offer_id":42314539171924,"sku":"AC2-E90-100-635","price":102.96,"currency_code":"GBP","in_stock":true},{"title":"660mm","offer_id":42314539204692,"sku":"AC2-E90-100-660","price":105.48,"currency_code":"GBP","in_stock":true},{"title":"685mm","offer_id":42314539237460,"sku":"AC2-E90-100-685","price":108.0,"currency_code":"GBP","in_stock":true},{"title":"710mm","offer_id":42314539270228,"sku":"AC2-E90-100-710","price":110.52,"currency_code":"GBP","in_stock":true},{"title":"735mm","offer_id":42314539302996,"sku":"AC2-E90-100-735","price":113.04,"currency_code":"GBP","in_stock":true},{"title":"760mm","offer_id":42314539335764,"sku":"AC2-E90-100-760","price":115.56,"currency_code":"GBP","in_stock":true},{"title":"785mm","offer_id":42314539368532,"sku":"AC2-E90-100-785","price":118.08,"currency_code":"GBP","in_stock":true},{"title":"810mm","offer_id":42314539401300,"sku":"AC2-E90-100-810","price":120.6,"currency_code":"GBP","in_stock":true},{"title":"835mm","offer_id":42314539434068,"sku":"AC2-E90-100-835","price":123.12,"currency_code":"GBP","in_stock":true},{"title":"860mm","offer_id":42314539466836,"sku":"AC2-E90-100-860","price":125.64,"currency_code":"GBP","in_stock":true},{"title":"885mm","offer_id":42314539499604,"sku":"AC2-E90-100-885","price":128.16,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0647\/1588\/2580\/files\/Sloped_20Coping_20-_2090-Degree_20External_20Corner.png?v=1774517111","url":"https:\/\/onlinemetalstore.co.uk\/products\/aluminium-coping-corner-90-degree","provider":"Online Metal Store Ltd","version":"1.0","type":"link"}