{"product_id":"35mm-flat-aluminium-door-threshold-strip","title":"35mm Flat Aluminium Door Threshold Strip | Floor Transition Bar","description":"\u003cdiv style=\"background:#f8f9fa;border-left:4px solid #2c3e50;padding:14px 18px;margin-bottom:16px;border-radius:0 6px 6px 0;\"\u003e\n\u003cp style=\"margin:0 0 10px 0;font-weight:700;font-size:15px;color:#2c3e50;letter-spacing:0.3px;\"\u003eWHY CHOOSE THIS THRESHOLD STRIP\u003c\/p\u003e\n\u003cul style=\"margin:0;padding:0;list-style:none;\"\u003e\n\u003cli style=\"padding:5px 0;font-size:14px;color:#333;\"\u003e✅ \u003cstrong\u003eFlush flat profile\u003c\/strong\u003e — sits level with both floors, no raised edge, no trip hazard\u003c\/li\u003e\n\u003cli style=\"padding:5px 0;font-size:14px;color:#333;\"\u003e🔩 \u003cstrong\u003eComplete fixing kit included\u003c\/strong\u003e — pre-drilled holes, screws \u0026amp; plugs in every pack\u003c\/li\u003e\n\u003cli style=\"padding:5px 0;font-size:14px;color:#333;\"\u003e🎨 \u003cstrong\u003e5 premium finishes\u003c\/strong\u003e — Silver, Gold, Champagne, Inox \u0026amp; Black to match any décor\u003c\/li\u003e\n\u003cli style=\"padding:5px 0;font-size:14px;color:#333;\"\u003e📐 \u003cstrong\u003eTwo lengths\u003c\/strong\u003e — 930mm for standard doors, 2700mm for wide \u0026amp; commercial openings\u003c\/li\u003e\n\u003cli style=\"padding:5px 0;font-size:14px;color:#333;\"\u003e🏠 \u003cstrong\u003eWorks on all floor types\u003c\/strong\u003e — laminate, vinyl, LVT, carpet, tile, hardwood \u0026amp; more\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex;flex-wrap:wrap;gap:8px;margin-bottom:20px;\"\u003e\n\u003cspan style=\"display:inline-flex;align-items:center;gap:6px;background:#fff;border:1px solid #ddd;border-radius:20px;padding:6px 12px;font-size:13px;color:#333;font-weight:500;\"\u003e🚚 Fast UK Dispatch\u003c\/span\u003e\n\u003cspan style=\"display:inline-flex;align-items:center;gap:6px;background:#fff;border:1px solid #ddd;border-radius:20px;padding:6px 12px;font-size:13px;color:#333;font-weight:500;\"\u003e🔒 Secure Checkout\u003c\/span\u003e\n\u003cspan style=\"display:inline-flex;align-items:center;gap:6px;background:#fff;border:1px solid #ddd;border-radius:20px;padding:6px 12px;font-size:13px;color:#333;font-weight:500;\"\u003e↩️ Easy Returns\u003c\/span\u003e\n\u003cspan style=\"display:inline-flex;align-items:center;gap:6px;background:#fff;border:1px solid #ddd;border-radius:20px;padding:6px 12px;font-size:13px;color:#333;font-weight:500;\"\u003e🏆 Specialist Supplier\u003c\/span\u003e\n\u003c\/div\u003e\n\u003ch2\u003eWhat is a 35mm Flat Aluminium Door Threshold Strip?\u003c\/h2\u003e\n\u003cp\u003eA 35mm flat aluminium door threshold strip is a low-profile metal bar installed at the base of a doorway to create a clean, flush transition between two same-level floor surfaces. It protects exposed floor edges, covers expansion joints, and delivers a professional finish in both residential and commercial interiors. Unlike raised T-bar profiles, a flat threshold sits level with both floors — eliminating trip hazards and meeting UK Building Regulations guidance for accessible thresholds.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eProfile Type\u003c\/td\u003e\n\u003ctd\u003eFlat Threshold \/ Same-Level Transition Strip\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAnodised Aluminium (Grade 6063)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e35mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLengths Available\u003c\/td\u003e\n\u003ctd\u003e930mm (0.93m) · 2700mm (2.7m)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFixing Method\u003c\/td\u003e\n\u003ctd\u003eScrew-fix — pre-drilled holes (screws \u0026amp; plugs included)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish Options\u003c\/td\u003e\n\u003ctd\u003eSilver · Gold · Champagne · Inox · Black\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Floors\u003c\/td\u003e\n\u003ctd\u003eLaminate · Hardwood · Vinyl · LVT · Carpet · Tile · Porcelain\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eResidential and Commercial\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProfile Height\u003c\/td\u003e\n\u003ctd\u003eFlat — flush with floor surface (no raised lip or trip hazard)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUnderfloor Heating\u003c\/td\u003e\n\u003ctd\u003eCompatible (aluminium is thermally conductive)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCuttable\u003c\/td\u003e\n\u003ctd\u003eYes — metal saw or angle grinder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eChoosing Your Length\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eLength\u003c\/th\u003e\n\u003cth\u003eBest For\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\u003e\u003cstrong\u003e930mm (0.93m)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStandard UK internal doors\u003c\/td\u003e\n\u003ctd\u003eStandard doorways (762–838mm wide). Cut down for a neat finish with no waste.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e2700mm (2.7m)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWide openings \u0026amp; commercial\u003c\/td\u003e\n\u003ctd\u003eDouble doors, bi-fold openings, room dividers, hotel corridors. One continuous piece — no joins.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eColour Matching Guide\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eFinish\u003c\/th\u003e\n\u003cth\u003eAppearance\u003c\/th\u003e\n\u003cth\u003eBest Matched With\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSilver\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBright polished aluminium\u003c\/td\u003e\n\u003ctd\u003eChrome handles, silver hinges, light oak or grey floors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGold\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWarm brass-tone anodised\u003c\/td\u003e\n\u003ctd\u003eBrass door handles, antique gold fixtures, warm wood floors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eChampagne\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSoft warm satin tone\u003c\/td\u003e\n\u003ctd\u003eNatural wood, beige carpet, satin nickel hardware\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInox\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBrushed stainless steel look\u003c\/td\u003e\n\u003ctd\u003eBrushed nickel, gunmetal, slate floors, contemporary interiors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBlack\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMatt\/satin black anodised\u003c\/td\u003e\n\u003ctd\u003eBlack ironmongery, dark doors, herringbone or dark wood floors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eKey Features and Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlush flat profile\u003c\/strong\u003e — sits level with the floor, no raised lip, trip-hazard free. Compliant with BS 8300 accessible design guidance for thresholds not exceeding 15mm in height.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAnodised aluminium construction\u003c\/strong\u003e — electrochemical anodising bonds a hard oxide layer to the surface. Result: scratch-resistant, corrosion-proof, maintenance-free. Outlasts painted or lacquered profiles by years.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre-drilled fixing holes\u003c\/strong\u003e — no guesswork. Mark, drill, plug, screw. Screws and plugs included in every pack.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFive premium finishes\u003c\/strong\u003e — match your door hardware, skirting boards, and floor trims precisely.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo lengths\u003c\/strong\u003e — 0.93m for standard doorways; 2.7m for wide-format openings with no join needed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCovers expansion joints\u003c\/strong\u003e — protects floating floor edges from dirt, lifting, and foot-traffic wear.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnderfloor heating compatible\u003c\/strong\u003e — aluminium conducts heat freely; does not restrict UFH performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCut to any length\u003c\/strong\u003e — metal saw or angle grinder. File edges smooth. No specialist tools needed.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhere to Use a Flat Door Threshold Strip\u003c\/h2\u003e\n\u003cp\u003eUse a flat threshold wherever two floors meet at the \u003cem\u003esame height\u003c\/em\u003e:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHallway laminate → living room carpet\u003c\/li\u003e\n\u003cli\u003eKitchen vinyl or LVT → dining room hardwood\u003c\/li\u003e\n\u003cli\u003eBathroom tile → bedroom laminate\u003c\/li\u003e\n\u003cli\u003eOffice reception tile → meeting room carpet tiles\u003c\/li\u003e\n\u003cli\u003eHotel corridors and retail entrances\u003c\/li\u003e\n\u003cli\u003eSpanning expansion joints within a single floor type on long runs\u003c\/li\u003e\n\u003cli\u003eConservatories and covered porches (anodised aluminium is corrosion-resistant)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e⚠️ Important:\u003c\/strong\u003e If your two floors are at different heights, you need a ramp or reducer threshold — not a flat bar. This product is for same-level surfaces only.\u003c\/p\u003e\n\n\u003ch2\u003eHow to Install — Step by Step\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasure\u003c\/strong\u003e the doorway width accurately with a tape measure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMark and cut\u003c\/strong\u003e the threshold strip to length using a metal saw or angle grinder. File any sharp edges smooth.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePosition\u003c\/strong\u003e the strip centred over the floor joint or expansion gap, aligned with the door stop.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMark fixing holes\u003c\/strong\u003e through the pre-drilled positions onto the subfloor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill pilot holes\u003c\/strong\u003e and insert the supplied wall plugs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eScrew down\u003c\/strong\u003e using the supplied screws — firm but not overtightened, to allow natural floor movement.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCheck finish\u003c\/strong\u003e — run your hand across; both surfaces should feel flush with no catching edge.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cem\u003eInstallation time: approximately 15–20 minutes per doorway. Suitable for confident DIY and professional installation.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003ch3\u003eWhat is the difference between a flat threshold strip and a T-bar transition?\u003c\/h3\u003e\n\u003cp\u003eA flat threshold strip (this product) screws directly to the subfloor and lies on top of both floor surfaces — creating a flush, permanent finish. A T-bar clips into a separate track and sits slightly raised, designed for floating floors that may need to be lifted. Flat strips are more secure, lower profile, and better suited to high foot traffic and commercial use.\u003c\/p\u003e\n\n\u003ch3\u003eCan this threshold strip be used on underfloor heating?\u003c\/h3\u003e\n\u003cp\u003eYes. Aluminium conducts heat efficiently and will not restrict underfloor heating performance. Before drilling, always verify the location of any UFH pipes or cables using your heating layout plan to avoid penetrating them.\u003c\/p\u003e\n\n\u003ch3\u003eCan this threshold be cut shorter?\u003c\/h3\u003e\n\u003cp\u003eYes. Both the 930mm and 2700mm lengths cut easily using a metal-cutting saw blade or angle grinder. Always cut from the undrilled end and file the cut edge smooth to remove burrs before installation.\u003c\/p\u003e\n\n\u003ch3\u003eWhat is the best colour for silver or chrome door handles?\u003c\/h3\u003e\n\u003cp\u003eSilver or Inox. Silver is brighter and more polished; Inox has a brushed stainless steel appearance. For brushed nickel handles, Inox or Champagne works best. For matte black handles, choose Black.\u003c\/p\u003e\n\n\u003ch3\u003eIs a 35mm threshold wide enough to cover my expansion gap?\u003c\/h3\u003e\n\u003cp\u003eYes, for standard gaps. Most floating floors need an 8–12mm expansion gap. A 35mm threshold rests comfortably on both floor surfaces either side of any standard gap. For unusually wide gaps, consider a 50mm or 60mm profile.\u003c\/p\u003e\n\n\u003ch3\u003eIs this suitable for outdoor or wet areas?\u003c\/h3\u003e\n\u003cp\u003eAnodised aluminium is corrosion-resistant and suitable for covered external thresholds (conservatories, covered porches, indoor wet rooms). It is not designed for fully exposed outdoor use subject to standing water.\u003c\/p\u003e\n\n\u003ch3\u003eWhat is anodised aluminium and why does it matter?\u003c\/h3\u003e\n\u003cp\u003eAnodising is an electrochemical process that converts the surface of the aluminium into a hard, durable oxide layer. This makes it scratch-resistant, permanently coloured, and completely maintenance-free — unlike painted profiles which can chip, peel, or fade. Anodised thresholds last significantly longer in high-traffic areas.\u003c\/p\u003e\n\n\u003ch3\u003eHow many strips do I need?\u003c\/h3\u003e\n\u003cp\u003eOne strip per doorway with a floor transition or expansion gap. Standard UK doorways (762–838mm) are covered by the 930mm length with material to spare for cutting. Wide openings or commercial doorways may require the 2700mm length or two 930mm pieces joined at the centre.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Buy From Stair Nosings UK?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e✅ \u003cstrong\u003eUK stock\u003c\/strong\u003e — available for fast dispatch, no overseas waiting times\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eSpecialist flooring trims supplier\u003c\/strong\u003e — threshold strips, stair nosings, and floor profiles are our expertise\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eComplete kit\u003c\/strong\u003e — screws and plugs included, ready to install out of the box\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003e5 finishes, 2 lengths\u003c\/strong\u003e — the right size and colour for every project\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eTrade and DIY\u003c\/strong\u003e — used by professional flooring installers and confident home improvers across the UK\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eSecure checkout\u003c\/strong\u003e — major payment methods accepted\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eAvailable in Silver, Gold, Champagne, Inox, and Black. Lengths: 930mm and 2700mm. Screws and plugs included. Select your colour and length above.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Stair Nosings UK","offers":[{"title":"Silver \/ 0.93m","offer_id":47911165100190,"sku":"SNUK-THR35-SLV-093","price":12.49,"currency_code":"GBP","in_stock":true},{"title":"Silver \/ 2.7m","offer_id":47911165132958,"sku":"SNUK-THR35-SLV-270","price":31.23,"currency_code":"GBP","in_stock":true},{"title":"Gold \/ 0.93m","offer_id":47911165165726,"sku":"SNUK-THR35-GLD-093","price":12.49,"currency_code":"GBP","in_stock":true},{"title":"Gold \/ 2.7m","offer_id":47911165198494,"sku":"SNUK-THR35-GLD-270","price":31.23,"currency_code":"GBP","in_stock":true},{"title":"Champagne \/ 0.93m","offer_id":47911165231262,"sku":"SNUK-THR35-CHP-093","price":12.49,"currency_code":"GBP","in_stock":true},{"title":"Champagne \/ 2.7m","offer_id":47911165264030,"sku":"SNUK-THR35-CHP-270","price":31.23,"currency_code":"GBP","in_stock":true},{"title":"Inox \/ 0.93m","offer_id":47911165296798,"sku":"SNUK-THR35-INX-093","price":12.49,"currency_code":"GBP","in_stock":true},{"title":"Inox \/ 2.7m","offer_id":47911165329566,"sku":"SNUK-THR35-INX-270","price":31.23,"currency_code":"GBP","in_stock":true},{"title":"Black \/ 0.93m","offer_id":47911165362334,"sku":"SNUK-THR35-BLK-093","price":12.49,"currency_code":"GBP","in_stock":true},{"title":"Black \/ 2.7m","offer_id":47911165395102,"sku":"SNUK-THR35-BLK-270","price":31.23,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0601\/5274\/2046\/files\/1c53df2be372b3c7f69d58ca63101f48.png?v=1782577161","url":"https:\/\/stairnosingsuk.co.uk\/products\/35mm-flat-aluminium-door-threshold-strip","provider":"Stair Nosings UK","version":"1.0","type":"link"}