{"product_id":"k2-2004413","title":"K2 SingleRail 36 Light Mounting Rail 4.80m","description":"\u003c!-- clearray-added-v1 --\u003e\n\u003cdiv class=\"crx\"\u003e\n\n\u003cp class=\"crx-lede\"\u003eThis is the \u003cb\u003e4.80 m length of K2 SingleRail 36 Light\u003c\/b\u003e – the lighter-gauge version of K2's SingleRail 36 profile. At 3.34 kg for nearly five metres it is one of the easiest rails in the K2 range to get up a ladder, which is the whole point of the Light profile.\u003c\/p\u003e\n\n\u003cp class=\"crx-lede\"\u003eThe \u003cb\u003e36\u003c\/b\u003e is the profile height in millimetres. SingleRail is K2's side-connecting system: the rail carries a \u003cb\u003eside chamber\u003c\/b\u003e that T-bolts drop into anywhere along its length, so clamps and roof-hook brackets are positioned after the rail is up rather than being threaded on from the end.\u003c\/p\u003e\n\n\u003ch3 class=\"crx-h\"\u003eWhy the 4.80m length\u003c\/h3\u003e\n\u003cp\u003eRail comes in fixed lengths and the choice is really about joints. A 4.80 m rail spans a longer run of modules before a connector is needed, so on a wide array there are fewer splices to align, fewer parts to order and fewer places for the row to step out of line.\u003c\/p\u003e\n\u003cp\u003eAgainst that, 4.80 m is awkward to handle on a roof and to get to site – it ships on a pallet rather than by courier. Where the array is short, or access is tight, the 3.30 m and 2.40 m lengths usually work out better even though the run needs joining.\u003c\/p\u003e\n\n\u003ch3 class=\"crx-h\"\u003eWhat you also need\u003c\/h3\u003e\n\u003cp\u003eThe rail is supplied on its own. Nothing below comes with it – every item is ordered separately, and all of them are on the cards further down.\u003c\/p\u003e\n\u003cul class=\"crx-inc\"\u003e\n  \u003cli class=\"crx-no\"\u003eK2 T-bolts for the \u003cb\u003eside chamber\u003c\/b\u003e – the 20\/12 M8x20 is the one specified for SingleRail 36 and 50\u003c\/li\u003e\n  \u003cli class=\"crx-no\"\u003eM8 flange nuts to go with them\u003c\/li\u003e\n  \u003cli class=\"crx-no\"\u003eK2 Universal Mid Clamp One, which clicks onto SingleRail 36, 50 and 63\u003c\/li\u003e\n  \u003cli class=\"crx-no\"\u003eK2 end clamps, sized to the frame depth of your panels\u003c\/li\u003e\n  \u003cli class=\"crx-no\"\u003eK2 roof hooks for tile, slate and seam roofs\u003c\/li\u003e\n  \u003cli class=\"crx-no\"\u003eRail connectors, where a run is longer than 4.80 m\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 class=\"crx-h\"\u003eBefore you order\u003c\/h3\u003e\n\u003cdiv class=\"crx-note\"\u003e\n  \u003cdiv\u003e\n    \u003cb\u003eRail spacing is a structural calculation, not a rule of thumb\u003c\/b\u003e\n    \u003cp\u003eHow far apart the roof hooks sit, and therefore how much rail a given array needs, depends on the roof, the panel size and the wind and snow loading at the postcode. K2 publish that calculation in their own design tool, and the Light profile is rated differently from the standard SingleRail 36. Have the layout calculated before ordering rather than working from a rail length.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003ch3 class=\"crx-h\"\u003eOrder alongside\u003c\/h3\u003e\n\u003cul class=\"crx-need\"\u003e\n  \u003cli\u003e\n\u003ca href=\"\/products\/k2-1002387-100\"\u003eK2 T-Bolt 20\/12 M8x20 (Pack of 100)\u003c\/a\u003e\n      \u003cp\u003eThe hammerhead bolt made for the SingleRail side chamber. Slides in anywhere and moves later if the layout changes.\u003c\/p\u003e\n\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/products\/k2-1000043-100\"\u003eK2 Hexagon Flange Nut M8 (Pack of 100)\u003c\/a\u003e\n      \u003cp\u003eThe matching nut. The serrated face stops it backing off under thermal movement.\u003c\/p\u003e\n\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/products\/k2-2003071\"\u003eK2 Universal Mid Clamp One 30-42mm\u003c\/a\u003e\n      \u003cp\u003eClicks onto SingleRail 36 and holds panels with a 30-42mm frame between one another.\u003c\/p\u003e\n\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/products\/k2-1005268\"\u003eK2 End Clamp Black 34-36mm\u003c\/a\u003e\n      \u003cp\u003eFinishes each row. Check it against your panel's frame depth before ordering.\u003c\/p\u003e\n\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/products\/k2-2004222\"\u003eK2 SingleHook 3S Long Roof Hook\u003c\/a\u003e\n      \u003cp\u003eFor tile and slate roofs, with three height settings in the base plate.\u003c\/p\u003e\n\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/products\/k2-1005394\"\u003eK2 Omega Cable Clip (Pack of 100)\u003c\/a\u003e\n      \u003cp\u003eRoutes the DC string along the outside of the rail instead of leaving it on the tiles.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 class=\"crx-h\"\u003eAlternative lengths and profiles\u003c\/h3\u003e\n\u003cp\u003eSingleRail 36 comes in more than one length, and SolidRail is the heavier alternative where the span or the loading calls for it.\u003c\/p\u003e\n\u003cul class=\"crx-need\"\u003e\n  \u003cli\u003e\n\u003ca href=\"\/products\/k2-2003221\"\u003eK2 SingleRail 36, 3.30m\u003c\/a\u003e\n      \u003cp\u003eThe shorter length in the standard gauge – easier to handle, more joints on a long row.\u003c\/p\u003e\n\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/products\/k2-2004396\"\u003eK2 SingleRail 36, 4.80m Black\u003c\/a\u003e\n      \u003cp\u003eSame length in the standard gauge and a black anodised finish, for an all-black array.\u003c\/p\u003e\n\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/products\/k2-2004397\"\u003eK2 SolidRail Light, 4.80m Black\u003c\/a\u003e\n      \u003cp\u003eThe SolidRail profile instead, black, at the same length.\u003c\/p\u003e\n\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/products\/k2-2003461\"\u003eK2 SolidRail Light, 2.40m\u003c\/a\u003e\n      \u003cp\u003eThe short SolidRail, for small arrays and tight access.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 class=\"crx-h\"\u003eQuestions on the SingleRail 36 Light\u003c\/h3\u003e\n\u003cdiv class=\"crx-qa\"\u003e\n  \u003cdiv\u003e\n\u003cb\u003eWhat does the \"36\" mean?\u003c\/b\u003e\n    \u003cp\u003eThe height of the rail profile in millimetres. K2 also make SingleRail 50 and 63 – taller profiles that span further between fixings.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv\u003e\n\u003cb\u003eHow is \"Light\" different from standard SingleRail 36?\u003c\/b\u003e\n    \u003cp\u003eIt is the same 36mm profile in a lighter gauge, so it weighs less and is rated differently. The two are not interchangeable in a structural calculation – specify whichever K2's design output calls for.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv\u003e\n\u003cb\u003eHow many do I need?\u003c\/b\u003e\n    \u003cp\u003eThat comes out of the layout rather than the panel count: it depends on rail spacing, roof hook centres and how the rows are split. Send us the array layout and the panel model and we will work the rail schedule out with you.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv\u003e\n\u003cb\u003eHow does it arrive?\u003c\/b\u003e\n    \u003cp\u003eOn a pallet. At 4.80 m it is too long for a parcel carrier, so a kerbside pallet delivery applies and someone needs to be on site to take it.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv\u003e\n\u003cb\u003eCan I join two rails together?\u003c\/b\u003e\n    \u003cp\u003eYes, with K2 rail connectors, which are ordered separately. On a run longer than 4.80 m a splice is unavoidable; K2's guidance sets where it may fall relative to the fixings.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"K2","offers":[{"title":"Default Title","offer_id":59130460078412,"sku":"K2-2004413","price":40.68,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1048\/7742\/4972\/files\/K2-2004413.jpg?v=1791556930","url":"https:\/\/clearraysolar.co.uk\/products\/k2-2004413","provider":"ClearRay Solar","version":"1.0","type":"link"}