{"product_id":"frp-crossarms","title":"FRP Crossarms","description":"\u003cp\u003eFIBROVX FRP crossarms are pultruded fiberglass beams that replace wood and steel crossarms on overhead distribution and transmission structures. They carry pin, post and suspension insulators in tangent, angle and deadend positions and do not rot, split or corrode.\u003c\/p\u003e\n\u003cp\u003eKey highlights: common section of about 3-5\/8 × 4-5\/8 in (92 × 117 mm) to fit standard wood-crossarm hardware, and about 4 × 6 in (102 × 152 mm) for heavy loads; standard lengths of 8 and 10 ft with other lengths to order; foam-filled with sealed end caps; braced, braceless center-mount and double deadend assemblies. Load capacity is designed with reference to ASTM D8019 and confirmed for your section, length and hardware at quotation.\u003c\/p\u003e\n\u003ch3\u003eKey benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHigh strength-to-weight ratio for easier handling and pole-top installation\u003c\/li\u003e\n\u003cli\u003eNon-conductive material adds insulation between phases and the pole\u003c\/li\u003e\n\u003cli\u003eNo rot, woodpecker, insect or corrosion damage\u003c\/li\u003e\n\u003cli\u003eConsistent mechanical properties from continuous pultrusion\u003c\/li\u003e\n\u003cli\u003eDrill patterns matched to existing wood-arm hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCustomization options\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSection size, wall thickness and length\u003c\/li\u003e\n\u003cli\u003eTangent (braced or braceless) and deadend \/ double deadend assemblies\u003c\/li\u003e\n\u003cli\u003ePre-drilled hole patterns for your utility standard\u003c\/li\u003e\n\u003cli\u003eCenter-mount brackets, braces and hardware kits\u003c\/li\u003e\n\u003cli\u003eColor and UV-protective surface veil\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eExact sizes, resin systems, colors and accessories are confirmed at quotation for your drawings and operating conditions. FIBROVX manufactures to order and supports OEM \/ private-label marking where agreed.\u003c\/p\u003e\n\u003ch3\u003eTypical applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDistribution line tangent and deadend structures\u003c\/li\u003e\n\u003cli\u003eH-frame and transmission line crossarms\u003c\/li\u003e\n\u003cli\u003eCoastal, polluted and high-humidity areas where wood or steel degrade\u003c\/li\u003e\n\u003cli\u003eReplacement of aging wood crossarms during line upgrades\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"fibrovx-spec\"\u003e\n\u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n\u003cdiv class=\"fx-table-wrap\" style=\"overflow-x:auto;-webkit-overflow-scrolling:touch;margin:0 0 1em;max-width:calc(100vw - 40px)\"\u003e\u003ctable style=\"width:100%;min-width:0;border-collapse:collapse;font-size:0.95em;overflow-wrap:break-word\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"border:1px solid #d0d5dc;padding:8px 10px;text-align:left;vertical-align:top;background:#f2f4f7;font-weight:600\"\u003eParameter\u003c\/th\u003e\n\u003cth style=\"border:1px solid #d0d5dc;padding:8px 10px;text-align:left;vertical-align:top;background:#f2f4f7;font-weight:600\"\u003eTypical value\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #d0d5dc;padding:8px 10px;text-align:left;vertical-align:top\"\u003eConstruction\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d5dc;padding:8px 10px;text-align:left;vertical-align:top\"\u003ePultruded fiberglass, hollow rectangular section, foam-filled, sealed end caps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #d0d5dc;padding:8px 10px;text-align:left;vertical-align:top\"\u003eStandard section\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d5dc;padding:8px 10px;text-align:left;vertical-align:top\"\u003eAbout 3-5\/8 × 4-5\/8 in (92 × 117 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #d0d5dc;padding:8px 10px;text-align:left;vertical-align:top\"\u003eHeavy-duty section\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d5dc;padding:8px 10px;text-align:left;vertical-align:top\"\u003eAbout 4 × 6 in (102 × 152 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #d0d5dc;padding:8px 10px;text-align:left;vertical-align:top\"\u003eLength\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d5dc;padding:8px 10px;text-align:left;vertical-align:top\"\u003e8 ft and 10 ft standard; other lengths to order\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #d0d5dc;padding:8px 10px;text-align:left;vertical-align:top\"\u003eResin\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d5dc;padding:8px 10px;text-align:left;vertical-align:top\"\u003ePolyester or vinyl ester with UV-protective surface veil\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #d0d5dc;padding:8px 10px;text-align:left;vertical-align:top\"\u003eMounting\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d5dc;padding:8px 10px;text-align:left;vertical-align:top\"\u003eBraced, braceless center-mount, deadend and double-arm assemblies\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cdiv class=\"fx-table-wrap\" style=\"overflow-x:auto;-webkit-overflow-scrolling:touch;margin:0 0 1em;max-width:calc(100vw - 40px)\"\u003e\u003ctable style=\"width:100%;min-width:0;border-collapse:collapse;font-size:0.95em;overflow-wrap:break-word\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"border:1px solid #d0d5dc;padding:8px 10px;text-align:left;vertical-align:top;background:#f2f4f7;font-weight:600\"\u003e\u003c\/th\u003e\n\u003cth style=\"border:1px solid #d0d5dc;padding:8px 10px;text-align:left;vertical-align:top;background:#f2f4f7;font-weight:600\"\u003eStandard grade\u003c\/th\u003e\n\u003cth style=\"border:1px solid #d0d5dc;padding:8px 10px;text-align:left;vertical-align:top;background:#f2f4f7;font-weight:600\"\u003eHigh-performance grade\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\u003ctr\u003e\n\u003ctd style=\"border:1px solid #d0d5dc;padding:8px 10px;text-align:left;vertical-align:top\"\u003eOption\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d5dc;padding:8px 10px;text-align:left;vertical-align:top\"\u003eStandard wall section for tangent and light angle positions on distribution lines.\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d5dc;padding:8px 10px;text-align:left;vertical-align:top\"\u003eHeavy wall or larger section, and double arms, for deadend, heavy-angle and long-span positions.\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003ch3\u003eDesign references: mechanical, electrical and weathering\u003c\/h3\u003e\n\u003cdiv class=\"fx-table-wrap\" style=\"overflow-x:auto;-webkit-overflow-scrolling:touch;margin:0 0 1em;max-width:calc(100vw - 40px)\"\u003e\u003ctable style=\"width:100%;min-width:0;border-collapse:collapse;font-size:0.95em;overflow-wrap:break-word\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\" style=\"border:1px solid #d0d5dc;padding:8px 10px;text-align:left;vertical-align:top;background:#f2f4f7;font-weight:600\"\u003eParameter\u003c\/th\u003e\n\u003cth scope=\"col\" style=\"border:1px solid #d0d5dc;padding:8px 10px;text-align:left;vertical-align:top;background:#f2f4f7;font-weight:600\"\u003eStandard grade\u003c\/th\u003e\n\u003cth scope=\"col\" style=\"border:1px solid #d0d5dc;padding:8px 10px;text-align:left;vertical-align:top;background:#f2f4f7;font-weight:600\"\u003eHigh-performance grade\u003c\/th\u003e\n\u003cth scope=\"col\" style=\"border:1px solid #d0d5dc;padding:8px 10px;text-align:left;vertical-align:top;background:#f2f4f7;font-weight:600\"\u003eConditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #d0d5dc;padding:8px 10px;text-align:left;vertical-align:top\"\u003eAssembly load capacity\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d5dc;padding:8px 10px;text-align:left;vertical-align:top\"\u003eDistribution tangent duty\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d5dc;padding:8px 10px;text-align:left;vertical-align:top\"\u003eHeavy deadend and long-span duty\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d5dc;padding:8px 10px;text-align:left;vertical-align:top\"\u003eFull-section tests with reference to ASTM D8019; rated per position for the selected section, length and hardware\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #d0d5dc;padding:8px 10px;text-align:left;vertical-align:top\"\u003eElectrical performance\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d5dc;padding:8px 10px;text-align:left;vertical-align:top\"\u003eDielectric testing on request\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d5dc;padding:8px 10px;text-align:left;vertical-align:top\"\u003eWet and dry flashover tests on request\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d5dc;padding:8px 10px;text-align:left;vertical-align:top\"\u003eWith reference to ASTM D149 \/ IEEE Std 4 test methods\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #d0d5dc;padding:8px 10px;text-align:left;vertical-align:top\"\u003eUV weathering\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d5dc;padding:8px 10px;text-align:left;vertical-align:top\"\u003eUV-stabilized resin and veil\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d5dc;padding:8px 10px;text-align:left;vertical-align:top\"\u003eAdditional UV-protective surface layer\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d5dc;padding:8px 10px;text-align:left;vertical-align:top\"\u003eAccelerated weathering with reference to ASTM G154\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #d0d5dc;padding:8px 10px;text-align:left;vertical-align:top\"\u003eDesign basis\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d5dc;padding:8px 10px;text-align:left;vertical-align:top\"\u003eWood-equivalent replacement\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d5dc;padding:8px 10px;text-align:left;vertical-align:top\"\u003eLoad-specific design\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #d0d5dc;padding:8px 10px;text-align:left;vertical-align:top\"\u003eLoad cases from your line design; ASCE MOP 104 used as a design reference\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cp\u003eValues outside these ranges: custom designs are available on request.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eListed values are selection references, not ratings for every configuration. The agreed specification identifies the selected dimensions, materials and required evidence. Standards cited here are design references, not certification claims; custom dimensions depend on the product and tooling.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3\u003eRelated products\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/frp-utility-lighting-poles\"\u003eFRP Utility, Telecom and Lighting Poles\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/frp-pultruded-profiles\"\u003eFRP Pultruded Profiles\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/frp-insulated-fencing\"\u003eFRP Insulated Fencing\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/frp-cable-protection-conduit\"\u003eFRP Cable Protection Conduit\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eGuides and resources\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/blogs\/frp-guides\/is-frp-non-conductive-electrical-properties\"\u003eIs FRP Non-Conductive?\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/blogs\/frp-guides\/what-is-pultrusion\"\u003eWhat Is Pultrusion?\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/pages\/industries\"\u003eIndustries we serve\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/pages\/technical-resources\"\u003eTechnical resources\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/pages\/international-delivery\"\u003eInternational delivery\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eDo your crossarms fit standard wood-arm hardware?\u003c\/strong\u003e\u003cbr\u003eYes. The common 3-5\/8 × 4-5\/8 in section matches wood-arm hardware, and hole patterns are drilled to your utility drawing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat load rating will I get?\u003c\/strong\u003e\u003cbr\u003eRatings depend on section, length, hardware and load direction. We confirm capacity for each position with test data designed with reference to ASTM D8019.\u003c\/p\u003e\n\u003ch3\u003eHow to inquire\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLine voltage and structure type (tangent, angle, deadend)\u003c\/li\u003e\n\u003cli\u003eRequired vertical, transverse and longitudinal loads\u003c\/li\u003e\n\u003cli\u003eSection, length and drill pattern drawing\u003c\/li\u003e\n\u003cli\u003eHardware, bracket and quantity requirements\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eRequest a quote\u003c\/h3\u003e\n\u003cp\u003ePricing is by quotation only. Use the \u003ca href=\"\/pages\/request-a-quote?product=frp-crossarms\u0026amp;title=FRP+Crossarms\"\u003eRequest a Quote\u003c\/a\u003e form with your drawing, quantity and destination, or \u003ca href=\"\/pages\/contact\"\u003econtact FIBROVX\u003c\/a\u003e. Packing method, lead time and Incoterms are confirmed in each quotation — available on request.\u003c\/p\u003e\n\u003cp class=\"fibrovx-credit\"\u003eImage credit: \"Delmarva Power \u0026amp; Milford Electric Division 24.9kV - Milford, DE\" by Tonyglen14, licensed \u003ca href=\"https:\/\/creativecommons.org\/licenses\/by\/2.0\/\" target=\"_blank\" rel=\"noopener\"\u003eCC BY 2.0\u003c\/a\u003e, via \u003ca href=\"https:\/\/commons.wikimedia.org\/wiki\/File:Delmarva_Power_%26_Milford_Electric_Division_24.9kV_-_Milford%2C_DE_%2826339751938%29.jpg\" target=\"_blank\" rel=\"noopener\"\u003eWikimedia Commons\u003c\/a\u003e. Cropped and resized.\u003c\/p\u003e","brand":"FIBROVX","offers":[{"title":"Default Title","offer_id":67903207178349,"sku":null,"price":0.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0847\/0088\/9197\/files\/fibrovx-frp-crossarms-01.jpg?v=1793334027","url":"https:\/\/fibrovx.com\/products\/frp-crossarms","provider":"FIBROVX","version":"1.0","type":"link"}