APG STEEL BALCONY 1800 mm — STEEL-BALCONY-SPEC-R2
Source S1. Checked draft only. Not NBS-ready or for construction.

manufacturer [provisional; product data]
Architectural Products Group Ltd (published APG business identity); legal manufacturing entity and factory address to confirm
Source: ../SOURCE-CATALOG.json; ../SOURCE-CATALOG.json | Owner: APG guard family owner

technicalContact [missing; product data]
null
Source: General enquiries: enquiries@architecturalproducts.uk (APG contact page); named responsible technical contact remains unconfirmed | Owner: APG business owner

productCode [supported; product data]
steel-balcony-1800
Source: SOURCE-TRACE.json | Owner: APG guard family owner

description [supported; product data]
Continuous welded steel flatbar fascia-fixed balcony kit, with handrail-height wall ties at both ends
Source: evidence/VALIDATION.json | Owner: APG guard family owner

intendedUse [provisional; design target]
External straight balcony guarding development candidate. Project location, occupancy and exposure to be confirmed.
Source: evidence/VALIDATION.json; ../OFFICIAL-SOURCE-RESEARCH.json#ENGLAND-K | Owner: Project designer

exclusions [supported; product data]
No freestanding, Juliet, stair, vehicle barrier, fall-arrest anchorage or verified load rating; no order/manufacture release.
Source: evidence/VALIDATION.json | Owner: APG guard family owner

jurisdiction [missing; product data]
No actual project jurisdiction selected. England guidance researched only; Wales/Scotland/NI and overseas need their own review.
Source: ../OFFICIAL-SOURCE-RESEARCH.json#ENGLAND-K | Owner: Project designer

classification [supported; product data]
{"systemCode": "Ss_25_60_05_05", "label": "Balustrade and guarding systems", "tableVersion": "Systems v1.43 July 2026", "productCode": null}
Source: ../OFFICIAL-SOURCE-RESEARCH.json#UNICLASS | Owner: APG guard family owner

dimensions [supported; checked source geometry]
{"widthMeaning": "Overall kit including12mm endplates", "widthMm": 1800, "railSpanMm": 1776, "topAboveProposedFloorMm": 1100, "stripCentresZmm": [-140, -320], "assumedFloorBuildUpMm": 80, "assumedSlabThicknessMm": 300, "note": "Slab/floor/edge geometry not surveyed or approved anchor dimensions."}
Source: evidence/BOM-STANDARD.json | Owner: APG CAD owner

sections [supported; checked source geometry]
{"topRailNormalDepthThicknessMm": [60, 10], "uprightNormalDepthThicknessMm": [40, 8], "twoFaceStripHeightThicknessMm": [80, 8]}
Source: evidence/BOM-STANDARD.json | Owner: APG CAD owner

variants [supported; product data]
Straight steel balcony overall widths 900/1200/1500/1800 mm. This record applies only to 1800 mm S1; other records have distinct STEP/BOM/evidence bindings.
Source: ../SOURCE-CATALOG.json; SOURCE-TRACE.json | Owner: APG guard family owner

material [provisional; design target]
S275JR hot-rolled flatbar candidate to EN 10025; 8/10/12 mm sections. Mill certificate, product form and weldability acceptance outstanding.
Source: evidence/VALIDATION.json | Owner: APG manufacturing owner

finishAndColour [missing; product data]
Corrosion protection, pretreatment, coating system, thickness, colour reference/gloss and repair method not selected for this exact kit.
Source: evidence/VALIDATION.json | Owner: APG manufacturing owner

construction [supported; product data]
Two continuous 80x8 lower strips with broad faces VERTICAL across upright faces; weld every crossing. No midrun splices; flush end interfaces. Twin 4 mm leg, 72 mm illustrative fillet envelopes are model geometry, not qualified weld requirements.
Source: evidence/VALIDATION.json | Owner: APG guard family owner

interfaces [supported; checked source geometry]
{"topEndplate": {"blankXYZmm": [12, 60, 120], "holesDiameterProxyMm": 14, "holeYmm": 30, "holeZmm": [1000, 1060]}, "fasciaStripAnchorHoleXmm": [60, 293, 505, 762, 1079, 1291, 1503, 1740], "stripHoleZmm": [-140, -320], "toolChecks": 20}
Source: evidence/BOM-STANDARD.json | Owner: APG CAD owner

nominalMass [supported; calculated prediction]
{"metalExcludingWeldKg": 85.08697785865243, "withIllustrativeWeldEnvelopeKg": 85.46187705865243, "densityKgM3": 7800, "excludes": "anchors, coatings, packaging; not measured finished-unit mass"}
Source: evidence/BOM-STANDARD.json | Owner: APG CAD owner

performanceCriteria [missing; product data]
Adopt project occupancy, actions/combinations, point/infill/wind/vertical actions, serviceability and durability schedule; current numerical cases are analyst sensitivities.
Source: evidence/NORMAL-DEMANDS.json; evidence/VERTICAL-DEMANDS.json | Owner: Responsible engineer

performanceEvidence [provisional; calculated prediction]
{"normalStudyRevision": "STEEL-S1", "normalScope": "Normal .74/1.5N/mm and500N top point separately;1000/10000/100000N/mm uncalibrated supports. Gross elastic translation-coupled beams; no torsion/contact/local offsets/hole or actual anchor resistance verification. Full adopted code schedule/combinations/serviceability unresolved.", "verticalStudyRevision": "STEEL-S1", "verticalScope": "E210000MPa,density7800kg/m3.1000Nvertical with ideal fixed translations at actual fascia anchors/toprailends. Gross section linear frame. Gravity lumped at nodes, excludes plates/welds/shorttails, movement only; no gravity-stress recovery. Full action/resistance/connection checks unresolved.", "meaning": "Calculated sensitivities only. No adopted code capacity, tested result or verified site movement prediction."}
Source: evidence/NORMAL-DEMANDS.json; evidence/VERTICAL-DEMANDS.json | Owner: Responsible engineer

geometryChecks [supported; inherited source geometry check; not rerun in R2]
{"validReimportSolids": 119, "volumeRoundTripErrorMm3": 0.0, "frontFaceMaxYmm": 60.0, "assemblyInterferencePairs": [], "toolAccess": {"L_end_socket_1000": [], "L_end_socket_1060": [], "R_end_socket_1000": [], "R_end_socket_1060": [], "Fascia_socket_60_-140": [], "Fascia_socket_60_-320": [], "Fascia_socket_293_-140": [], "Fascia_socket_293_-320": [], "Fascia_socket_505_-140": [], "Fascia_socket_505_-320": [], "Fascia_socket_762_-140": [], "Fascia_socket_762_-320": [], "Fascia_socket_1079_-140": [], "Fascia_socket_1079_-320": [], "Fascia_socket_1291_-140": [], "Fascia_socket_1291_-320": [], "Fascia_socket_1503_-140": [], "Fascia_socket_1503_-320": [], "Fascia_socket_1740_-140": [], "Fascia_socket_1740_-320": []}, "maxInternalGapMm": 97.86666666666679, "endGapsMm": [88, 92], "fixingRowsZmm": [-140, -320], "assumedSlabTopBottomZmm": [-80, -380], "upperLowerAnchorEdgeDistancesMm": [60, 60], "maxTrialFasciaStationPitchMm": 317}
Source: evidence/VALIDATION.json | Owner: APG CAD owner

testedResults [missing; tested result]
null
Source: evidence/VALIDATION.json | Owner: Authorised test provider

independentVerification [missing; independently verified claim]
null
Source: evidence/VALIDATION.json | Owner: Competent independent checker

tolerances [missing; product data]
No fabrication/installation/coating/fit tolerances accepted; model nominal dimensions only.
Source: evidence/VALIDATION.json | Owner: APG manufacturing owner

substrateAndFixings [missing; product data]
Concrete fascia/wall geometry and both end walls must be surveyed and verified. Model assumes 300 mm slab, 80 mm buildup, 60 mm edge distances; 14 mm holes are proxies. No anchor product/diameter/embedment/torque approved.
Source: evidence/VALIDATION.json | Owner: Project engineer and anchor designer

installation [provisional; design target]
Draft hold-point sequence supplied separately; competent installation method and temporary edge protection/lifting plan required.
Source: evidence/VALIDATION.json; INSTALLATION-MAINTENANCE-DRAFT.txt | Owner: APG installation owner

maintenanceAndCleaning [provisional; design target]
Inspect welds, corrosion, coating damage and fixings; isolate unsafe guard after impact/movement. Cleaning chemistry, intervals and repair system depend on selected coating and exposure; no interval or chemical compatibility claimed.
Source: INSTALLATION-MAINTENANCE-DRAFT.txt | Owner: APG technical owner

durabilityAndWarranty [missing; product data]
No verified service life, exposure category, warranty terms or exclusions supplied.
Source: evidence/VALIDATION.json | Owner: APG business/manufacturing owner

environmental [missing; product data]
No product-specific EPD, recycled-content percentage, embodied-carbon assessment or end-of-life route verified. Steel recovery potential is not a quantified product claim.
Source: No evidence in inspected source pack | Owner: APG sustainability owner

CAD [supported; product data]
{"format": "STEP", "revision": "S1", "filename": "evidence/APG-S1-face-welded-slim.step", "sha256": "9f10327f1e326e530ff5b435b558d0d4688bcc3c50b569f8a110a6a846aeae48"}
Source: evidence/VALIDATION.json | Owner: APG guard family owner

drawings [missing; product data]
No approved production/installation drawings provided. Nominal CAD and BOM datums retained for technical review.
Source: evidence/BOM-STANDARD.json | Owner: APG drawing owner

BIM [missing; product data]
No native Revit/IFC object supplied or validated. STEP does not establish BIM delivery.
Source: ../SOURCE-CATALOG.json; source pack inspection | Owner: APG BIM owner

literatureAndDownloads [provisional; product data]
Local R2 data, clause, draft method and matching STEP exist. Public download URLs and deployment are not verified.
Source: SOURCE-TRACE.json | Owner: Existing website owner

origin [missing; product data]
Manufacturing country not established for this kit; do not infer from site badge.
Source: No matching origin evidence inspected | Owner: APG manufacturing owner

commercial [provisional; product data]
No finished assembly price, retail offer, stock or lead-time commitment supplied. Private costing authority remains separate.
Source: SOURCE-TRACE.json | Owner: APG pricing owner
