{"product_id":"aluminium-box-gutter-system-135-x-100mm","title":"Aluminium Box Gutter System – 135 x 100mm, Powder-Coated, 3m Lengths \u0026amp; Fittings","description":"\u003cp\u003eA box gutter carries far more water than a standard uPVC profile and suits the clean, square lines of flat-roofed extensions, garden rooms and commercial buildings — and in powder-coated aluminium it will outlast plastic guttering several times over without fading or sagging. This 135 x 100mm system covers the complete run: 3m gutter lengths plus every fitting needed to turn corners, connect downpipes and close the run.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e135mm wide x 100mm deep rectangular box profile, powder-coated aluminium\u003c\/li\u003e\n\u003cli\u003eChoose each component: 3m lengths, jointers, 90° and 135° angles, three outlet sizes, stop ends\u003c\/li\u003e\n\u003cli\u003eTextured Black or Anthracite Grey (RAL 7016) to match modern joinery\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecification\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eProfile\u003c\/th\u003e\n\u003ctd\u003eBox (rectangular), 135mm x 100mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLength\u003c\/th\u003e\n\u003ctd\u003e3m per gutter length\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003ePowder-coated aluminium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eColours\u003c\/th\u003e\n\u003ctd\u003eTextured Black, Anthracite Grey (RAL 7016)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutlets\u003c\/th\u003e\n\u003ctd\u003e63mm dia, 76mm dia, 72 x 72mm square\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAngles\u003c\/th\u003e\n\u003ctd\u003e90° and 135°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eFrequently asked questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat do I need for a straight run?\u003c\/strong\u003e Gutter lengths to cover the run, one jointer per join, a stop end for each closed end, and one outlet per downpipe position. Angles are only needed where the run turns a corner.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhich outlet size?\u003c\/strong\u003e Match the outlet to your downpipe: 63mm or 76mm for round downpipes, 72 x 72mm for square. On most domestic extensions one 63mm outlet per 25m² of roof is a sensible starting point.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy aluminium over uPVC?\u003c\/strong\u003e Aluminium won't become brittle, fade or distort in sunlight, holds its colour for decades, and spans between brackets without sagging — it's the specification choice for buildings meant to last.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow is it jointed?\u003c\/strong\u003e Lengths connect with the jointer piece and a suitable gutter sealant for a watertight joint.\u003c\/p\u003e\n\u003cp\u003ePrefer a curved profile? See our \u003ca href=\"\/products\/aluminium-half-round-gutter-system-125mm\"\u003eAluminium Half Round Gutter System\u003c\/a\u003e. Draining a flat roof through the deck instead? Use our \u003ca href=\"\/products\/aluminium-vertical-threaded-roof-drain-outlet-dome-grate\"\u003ealuminium roof drain outlet\u003c\/a\u003e.\u003c\/p\u003e","brand":"Rubber Roof UK","offers":[{"title":"3m Gutter Length \/ Textured Black","offer_id":46001398120639,"sku":"RRUK-ALU-BOXGUT-LEN-BLK","price":211.99,"currency_code":"GBP","in_stock":true},{"title":"3m Gutter Length \/ Anthracite Grey","offer_id":46001398153407,"sku":"RRUK-ALU-BOXGUT-LEN-ANT","price":211.99,"currency_code":"GBP","in_stock":true},{"title":"Jointer \/ Textured Black","offer_id":46001398186175,"sku":"RRUK-ALU-BOXGUT-JNT-BLK","price":19.99,"currency_code":"GBP","in_stock":true},{"title":"Jointer \/ Anthracite Grey","offer_id":46001398218943,"sku":"RRUK-ALU-BOXGUT-JNT-ANT","price":19.99,"currency_code":"GBP","in_stock":true},{"title":"90° Angle \/ Textured Black","offer_id":46001398251711,"sku":"RRUK-ALU-BOXGUT-A90-BLK","price":87.99,"currency_code":"GBP","in_stock":true},{"title":"90° Angle \/ Anthracite Grey","offer_id":46001398284479,"sku":"RRUK-ALU-BOXGUT-A90-ANT","price":87.99,"currency_code":"GBP","in_stock":true},{"title":"135° Angle \/ Textured Black","offer_id":46001398317247,"sku":"RRUK-ALU-BOXGUT-A135-BLK","price":87.99,"currency_code":"GBP","in_stock":true},{"title":"135° Angle \/ Anthracite Grey","offer_id":46001398350015,"sku":"RRUK-ALU-BOXGUT-A135-ANT","price":87.99,"currency_code":"GBP","in_stock":true},{"title":"Outlet 63mm \/ Textured Black","offer_id":46001398382783,"sku":"RRUK-ALU-BOXGUT-OUT63-BLK","price":80.99,"currency_code":"GBP","in_stock":true},{"title":"Outlet 63mm \/ Anthracite Grey","offer_id":46001398415551,"sku":"RRUK-ALU-BOXGUT-OUT63-ANT","price":80.99,"currency_code":"GBP","in_stock":true},{"title":"Outlet 76mm \/ Textured Black","offer_id":46001398448319,"sku":"RRUK-ALU-BOXGUT-OUT76-BLK","price":80.99,"currency_code":"GBP","in_stock":true},{"title":"Outlet 76mm \/ Anthracite Grey","offer_id":46001398481087,"sku":"RRUK-ALU-BOXGUT-OUT76-ANT","price":80.99,"currency_code":"GBP","in_stock":true},{"title":"Outlet 72x72mm \/ Textured Black","offer_id":46001398513855,"sku":"RRUK-ALU-BOXGUT-OUT72SQ-BLK","price":80.99,"currency_code":"GBP","in_stock":true},{"title":"Outlet 72x72mm \/ Anthracite Grey","offer_id":46001398546623,"sku":"RRUK-ALU-BOXGUT-OUT72SQ-ANT","price":80.99,"currency_code":"GBP","in_stock":true},{"title":"Stop End \/ Textured Black","offer_id":46001398579391,"sku":"RRUK-ALU-BOXGUT-STOP-BLK","price":21.99,"currency_code":"GBP","in_stock":true},{"title":"Stop End \/ Anthracite Grey","offer_id":46001398612159,"sku":"RRUK-ALU-BOXGUT-STOP-ANT","price":21.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0598\/1804\/9727\/files\/RQUnN0PCLmtesmFBnCxxPMif4rXIuV9gbDjgn2xbTk36bkeJqwPZV102FtA8Nvi4D4P6t_hi792LVpr1zfQxd6Ew38sPi8Z0_SS7k-LWLP-zJ8ycu1b44zFezyNkx3E9RT0vy1ufGyUPcvwk_0xAQgoimCWDHZvdjxoA8L6wPtY.jpg?v=1786454698","url":"https:\/\/rubberroofuk.uk\/products\/aluminium-box-gutter-system-135-x-100mm","provider":"Rubber Roof UK","version":"1.0","type":"link"}