{"title":"Mill Finish RSJ Beams","description":"\u003cp\u003eMill finish RSJ beams are structural steel beams supplied in their standard untreated steel finish. They are commonly used for building work, extensions, openings, loft conversions, garage openings, renovations and general construction projects where a structural beam is required.\u003c\/p\u003e\n\u003cp\u003eOur mill finish RSJs include a range of universal beams and steel sections in popular sizes. They are suitable for load-bearing applications when specified correctly, but the beam size, length, grade and installation details must always be confirmed by a qualified structural engineer before ordering.\u003c\/p\u003e\n\u003ch2\u003eMill Finish RSJ Beams for UK Construction Projects\u003c\/h2\u003e\n\u003cp\u003eMill finish steel is supplied without a red oxide primer or galvanised coating. This makes it a practical option for projects where the beam will be painted, treated, enclosed within the structure or finished separately after delivery.\u003c\/p\u003e\n\u003cp\u003eThe surface may have normal mill marks, handling marks or light surface oxidation, which is typical for untreated structural steel. If the beam will be exposed to moisture, outdoor conditions or visible finished areas, a suitable paint or protection system should be applied.\u003c\/p\u003e\n\u003ch2\u003ePopular Uses\u003c\/h2\u003e\n\u003cp\u003e- House extensions\u003cbr\u003e- Wall openings\u003cbr\u003e- Loft conversions\u003cbr\u003e- Garage openings\u003cbr\u003e- Structural support beams\u003cbr\u003e- Building renovations\u003cbr\u003e- Steel frame projects\u003cbr\u003e- Trade and contractor use\u003c\/p\u003e\n\u003ch2\u003eMill Finish Steel Explained\u003c\/h2\u003e\n\u003cp\u003eMill finish means the steel is supplied in its standard raw finish from manufacture, without an additional primer coat. It is often chosen when the customer, builder or fabricator wants to apply their own coating system later.\u003c\/p\u003e\n\u003cp\u003eFor projects where the steel needs short-term primer protection before final painting, red oxide RSJ beams may be more suitable. For exposed outdoor steelwork, speak to your engineer, builder or coating supplier about the correct protection system.\u003c\/p\u003e\n\u003ch2\u003eStructural Steel Notice\u003c\/h2\u003e\n\u003cp\u003eAll RSJ beams must be specified by a qualified structural engineer. Beam size, loading, bearing requirements, padstones, connections and installation method depend on the individual project.\u003c\/p\u003e\n\u003cp\u003eRackerman does not provide structural design advice and cannot confirm whether a specific beam is suitable for your opening or load requirement.\u003c\/p\u003e\n\u003ch2\u003eAvailable Mill Finish RSJ Sizes\u003c\/h2\u003e\n\u003cp\u003eThis collection includes mill finish RSJ beams in a range of commonly used sizes. Product options may include different beam depths, weights and lengths depending on availability.\u003c\/p\u003e\n\u003cp\u003eIf you already have your engineer’s specification, match the required beam size and length from the available product options. If you are unsure, confirm the specification before placing an order.\u003c\/p\u003e\n\u003ch2\u003eDelivery Information\u003c\/h2\u003e\n\u003cp\u003eMill finish RSJ beams are heavy steel items and require suitable delivery access. Offloading assistance is required on site. Lead times are currently 5–10 working days — early bookings get priority.\u003c\/p\u003e\n\u003ch2\u003eOrder Mill Finish RSJ Beams Online\u003c\/h2\u003e\n\u003cp\u003eBrowse our mill finish RSJ beam options below and select the size and length required for your project. For best results, order using the exact specification provided by your structural engineer.\u003c\/p\u003e","products":[{"product_id":"127x76-ub13-s355-universal-beam","title":"127 x 76 UB13 S355J0 Universal Beam – Mill Finish \u0026 Red Oxide Primer","description":"\u003cp\u003eThe 127 x 76 UB13 is a compact S355J0 structural steel universal beam weighing 13 kg per metre. Available in mill finish or red oxide primer, cut to your exact required length from 1m to 10m using our online cut-to-size calculator. Commonly specified for loft conversions, internal wall openings, garage conversions, small extensions and secondary structural beam applications where this section has been confirmed by a structural engineer.\u003c\/p\u003e\n\n\u003ch2\u003eSteel Grade and Specification\u003c\/h2\u003e\n\u003cp\u003eSupplied in S355J0 structural steel — a high-strength weldable grade with a minimum yield strength of 355 MPa, conforming to BS EN 10025-2. The section designation 127 x 76 UB13 refers to a nominal depth of 127mm, nominal flange width of 76.2mm and a linear mass of 13 kg\/m. Full section properties are published under BS EN 10365:2017.\u003c\/p\u003e\n\n\u003ch2\u003eAvailable Finishes\u003c\/h2\u003e\n\u003cp\u003eMill finish is supplied as-rolled with natural mill scale — the standard untreated surface straight from manufacture. Suitable for internal structural use where a protective coating will be applied on site.\u003c\/p\u003e\n\u003cp\u003eRed oxide primer provides a shop-applied primer coat offering temporary corrosion protection during transport, storage and installation. Both finishes are structurally identical — the choice depends on your project specification and site requirements.\u003c\/p\u003e\n\n\u003ch2\u003eCut to Size\u003c\/h2\u003e\n\u003cp\u003eUse our cut-to-size calculator above to enter your exact required length in mm. You are charged for the next 100mm increment — for example, 4165mm is billed as 4.2m. Multiple cuts and quantities can be added in a single order. All cuts are +\/- 3mm tolerance. Cut-to-length steel is non-returnable unless faulty.\u003c\/p\u003e\n\n\u003ch2\u003eSection Dimensions\u003c\/h2\u003e\n\u003cp\u003eDepth (D): 127mm  |  Width (B): 76.2mm  |  Web thickness (S): 4.2mm  |  Flange thickness (T): 7.6mm  |  Root radius (R): 7.6mm  |  Depth between fillets (F): 96.6mm  |  Weight: 13 kg\/m\u003c\/p\u003e\n\n\u003ch2\u003eStructural Engineer Notice\u003c\/h2\u003e\n\u003cp\u003eThe 127 x 76 UB13 must be specified by a qualified structural engineer before ordering. Rackerman does not provide structural design advice and cannot confirm suitability for any specific opening, span or load condition. Building regulations approval is required for all structural alterations.\u003c\/p\u003e\n\n\u003ch2\u003eDelivery Information\u003c\/h2\u003e\n\u003cp\u003eLead times are currently 5–10 working days. Delivery is kerbside only — our vehicles do not carry HIAB or lifting equipment. Suitable offloading labour or equipment must be arranged on site. 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x 89 UB16 S355J0 Universal Beam – Mill Finish \u0026 Red Oxide Primer","description":"\u003cp\u003eThe 152 x 89 UB16 is an S355J0 structural steel universal beam weighing 16 kg per metre. Available in mill finish or red oxide primer, cut to your exact required length from 1m to 10m using our online cut-to-size calculator. Commonly specified for building openings, domestic and light commercial steelwork, secondary beam supports, mezzanine structures and fabricated steel frames where this section has been confirmed by a structural engineer.\u003c\/p\u003e\n\n\u003ch2\u003eSteel Grade and Specification\u003c\/h2\u003e\n\u003cp\u003eSupplied in S355J0 structural steel conforming to BS EN 10025-2, with a minimum yield strength of 355 MPa. The section designation 152 x 89 UB16 refers to a nominal depth of 152.4mm, nominal flange width of 88.9mm and a linear mass of 16 kg\/m. Full section properties are published under BS EN 10365:2017.\u003c\/p\u003e\n\n\u003ch2\u003eAvailable Finishes\u003c\/h2\u003e\n\u003cp\u003eMill finish is supplied as-rolled with natural mill scale — the standard untreated surface straight from manufacture. Suitable for internal structural use where a protective coating will be applied on site.\u003c\/p\u003e\n\u003cp\u003eRed oxide primer provides a shop-applied primer coat offering temporary corrosion protection during transport, storage and installation. Both finishes are structurally identical — the choice depends on your project specification and site requirements.\u003c\/p\u003e\n\n\u003ch2\u003eCut to Size\u003c\/h2\u003e\n\u003cp\u003eUse our cut-to-size calculator above to enter your exact required length in mm. You are charged for the next 100mm increment — for example, 4165mm is billed as 4.2m. Multiple cuts and quantities can be added in a single order. All cuts are +\/- 3mm tolerance. Cut-to-length steel is non-returnable unless faulty.\u003c\/p\u003e\n\n\u003ch2\u003eSection Dimensions\u003c\/h2\u003e\n\u003cp\u003eDepth (D): 152.4mm  |  Width (B): 88.9mm  |  Web thickness (S): 4.6mm  |  Flange thickness (T): 7.7mm  |  Root radius (R): 7.6mm  |  Depth between fillets (F): 121.8mm  |  Weight: 16 kg\/m\u003c\/p\u003e\n\n\u003ch2\u003eStructural Engineer Notice\u003c\/h2\u003e\n\u003cp\u003eThe 152 x 89 UB16 must be specified by a qualified structural engineer before ordering. Rackerman does not provide structural design advice and cannot confirm suitability for any specific opening, span or load condition. Building regulations approval is required for all structural alterations.\u003c\/p\u003e\n\n\u003ch2\u003eDelivery Information\u003c\/h2\u003e\n\u003cp\u003eLead times are currently 5–10 working days. Delivery is kerbside only — our vehicles do not carry HIAB or lifting equipment. Suitable offloading labour or equipment must be arranged on site. 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x 146 UB31 S355J0 Universal Beam – Mill Finish \u0026 Red Oxide Primer","description":"\u003cp\u003eThe 254 x 146 UB31 is an S355J0 structural steel universal beam weighing 31 kg per metre. Available in mill finish or red oxide primer, cut to your exact required length from 1m to 10m using our online cut-to-size calculator. Commonly specified for building openings, mezzanine floors, structural steel frames, commercial and light industrial steelwork and secondary beam supports where this section has been confirmed by a structural engineer.\u003c\/p\u003e\n\n\u003ch2\u003eSteel Grade and Specification\u003c\/h2\u003e\n\u003cp\u003eSupplied in S355J0 structural steel conforming to BS EN 10025-2, with a minimum yield strength of 355 MPa. The section designation 254 x 146 UB31 refers to a nominal depth of 251.5mm, nominal flange width of 146.1mm and a linear mass of 31 kg\/m. Full section properties are published under BS EN 10365:2017.\u003c\/p\u003e\n\n\u003ch2\u003eAvailable Finishes\u003c\/h2\u003e\n\u003cp\u003eMill finish is supplied as-rolled with natural mill scale — the standard untreated surface straight from manufacture. Suitable for internal structural use where a protective coating will be applied on site.\u003c\/p\u003e\n\u003cp\u003eRed oxide primer provides a shop-applied primer coat offering temporary corrosion protection during transport, storage and installation. Both finishes are structurally identical — the choice depends on your project specification and site requirements.\u003c\/p\u003e\n\n\u003ch2\u003eCut to Size\u003c\/h2\u003e\n\u003cp\u003eUse our cut-to-size calculator above to enter your exact required length in mm. You are charged for the next 100mm increment — for example, 4165mm is billed as 4.2m. Multiple cuts and quantities can be added in a single order. All cuts are +\/- 3mm tolerance. Cut-to-length steel is non-returnable unless faulty.\u003c\/p\u003e\n\n\u003ch2\u003eSection Dimensions\u003c\/h2\u003e\n\u003cp\u003eDepth (D): 251.5mm  |  Width (B): 146.1mm  |  Web thickness (S): 6.1mm  |  Flange thickness (T): 8.6mm  |  Root radius (R): 7.6mm  |  Depth between fillets (F): 219mm  |  Weight: 31 kg\/m\u003c\/p\u003e\n\n\u003ch2\u003eStructural Engineer Notice\u003c\/h2\u003e\n\u003cp\u003eThe 254 x 146 UB31 must be specified by a qualified structural engineer before ordering. Rackerman does not provide structural design advice and cannot confirm suitability for any specific opening, span or load condition. Building regulations approval is required for all structural alterations.\u003c\/p\u003e\n\n\u003ch2\u003eDelivery Information\u003c\/h2\u003e\n\u003cp\u003eLead times are currently 5–10 working days — early bookings get priority. Delivery is kerbside only — our vehicles do not carry HIAB or lifting equipment. 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Suitable for internal structural use where a protective coating will be applied on site.\u003c\/p\u003e\n\u003cp\u003eRed oxide primer provides a shop-applied primer coat offering temporary corrosion protection during transport, storage and installation. Both finishes are structurally identical — the choice depends on your project specification and site requirements.\u003c\/p\u003e\n\n\u003ch2\u003eCut to Size\u003c\/h2\u003e\n\u003cp\u003eUse our cut-to-size calculator above to enter your exact required length in mm. You are charged for the next 100mm increment — for example, 4165mm is billed as 4.2m. Multiple cuts and quantities can be added in a single order. All cuts are +\/- 3mm tolerance. 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Full section properties are published under BS EN 10365:2017.\u003c\/p\u003e\n\n\u003ch2\u003eAvailable Finishes\u003c\/h2\u003e\n\u003cp\u003eMill finish is supplied as-rolled with natural mill scale — the standard untreated surface straight from manufacture. Suitable for internal structural use where a protective coating will be applied on site.\u003c\/p\u003e\n\u003cp\u003eRed oxide primer provides a shop-applied primer coat offering temporary corrosion protection during transport, storage and installation. Both finishes are structurally identical — the choice depends on your project specification and site requirements.\u003c\/p\u003e\n\n\u003ch2\u003eCut to Size\u003c\/h2\u003e\n\u003cp\u003eUse our cut-to-size calculator above to enter your exact required length in mm. You are charged for the next 100mm increment — for example, 3265mm is billed as 3.3m. Multiple cuts and quantities can be added in a single order. All cuts are +\/- 3mm tolerance. 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With equal depth and width of 203.2mm, the UC46 is the lightest section in the 203mm column family and offers substantially greater axial load capacity than any section in the 152mm range. It is commonly specified for steel-framed buildings, mezzanine floor columns, commercial and light industrial structures and fabricated steel frames where this section has been confirmed by a structural engineer. Available in mill finish or red oxide primer, cut to your exact required length from 1m to 10m.\u003c\/p\u003e\n\n\u003ch2\u003eSteel Grade and Specification\u003c\/h2\u003e\n\u003cp\u003eSupplied in S355J0 structural steel conforming to BS EN 10025-2, with a minimum yield strength of 355 MPa. The section designation 203 x 203 UC46 refers to a nominal depth of 203.2mm, nominal flange width of 203.2mm and a linear mass of 46 kg\/m. Full section properties are published under BS EN 10365:2017.\u003c\/p\u003e\n\n\u003ch2\u003eAvailable Finishes\u003c\/h2\u003e\n\u003cp\u003eMill finish is supplied as-rolled with natural mill scale — the standard untreated surface straight from manufacture. Suitable for internal structural use where a protective coating will be applied on site.\u003c\/p\u003e\n\u003cp\u003eRed oxide primer provides a shop-applied primer coat offering temporary corrosion protection during transport, storage and installation. Both finishes are structurally identical — the choice depends on your project specification and site requirements.\u003c\/p\u003e\n\n\u003ch2\u003eCut to Size\u003c\/h2\u003e\n\u003cp\u003eUse our cut-to-size calculator above to enter your exact required length in mm. You are charged for the next 100mm increment — for example, 3265mm is billed as 3.3m. Multiple cuts and quantities can be added in a single order. All cuts are +\/- 3mm tolerance. 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