The UK’s First & Only Poly Nuc Made From EPPEvery other poly nuc on the market is made from Expanded Polystyrene. We changed that. Our 6 Frame Dual Poly Nuc uses Expanded Polypropylene — a stronger, warmer, completely waterproof material that never needs painting. Exclusively designed, registered, and available only from Old Castle Farm Hives.1.6kgUltralight weight6British National frames3.5LTop feeder capacity100%Recyclable EPP material Why EPP Changes EverythingSix reasons to choose EPP over EPSExpanded Polypropylene isn’t just a better polystyrene — it’s a fundamentally different material. Here’s what that means for your bees and your beekeeping.No Painting — EverEPP’s closed molecular structure gives it a permanent UV-stable neutral colour. No brushes, no paint, no prep — simply wipe clean each season. (You can paint with standard smooth masonry paint if preferred.)Superior Thermal InsulationEPP outperforms EPS on heat retention, keeping colonies warmer through cold British winters and cooler in summer — meaning faster build-up and healthier bees.Impact ResistantThe same material used in motorcycle helmets. Drop it, knock it, stack it — EPP absorbs impacts and springs back where EPS would chip or crack.100% WaterproofEPP has zero water absorption — no swelling, no rot, no degradation even through the wettest winters. Moisture can never compromise the box.Ultralight at 1.6kgAt just 1.6 kg, one of the lightest 6-frame nucs in the UK. Move it one-handed, carry multiples, or transport without straining your back.100% RecyclableEPP is fully reprocessable at end of life — something EPS cannot claim. The environmentally responsible choice with zero performance compromise. The Dual Split DesignOne box. Two colonies.The removable Correx divider splits the 6-frame brood box into two fully independent 3-frame nucs — each with its own mesh floor section and entrance disc. No other poly nuc offers this flexibility at this price.Queen Rearing & IntroductionPerfect for walk-away splits and controlled queen introduction. Introduce a new queen on one side while your colony settles on the other — all in one box.Swarm Control & ManagementRun two small colonies side by side in the same footprint. Manage swarm splits efficiently and monitor both halves in a single apiary visit.Expandable to 14×12Add our eke extension to convert to full 14×12 brood depth — giving a thriving colony more space without needing a new box.Upgrade Aluminium Divider AvailableThe standard Correx divider works perfectly, but an upgrade aluminium composite version is available separately. Colour of Correx board may vary.Removable Correx Divider 3.5L Top FeederNew Design Top FeederFeed liquid or fondant — your choiceThe purpose-built 3.5 litre top feeder works for liquid syrup in summer and fondant or pattie in winter — no adapters or extra kit required.3.5 Litre CapacityGenerous volume reduces refill frequency — less disturbance to the colony, less time spent at the hive.Lid with Hive Strap RecessRecessed indentation keeps your hive strap secure during transport — no additional hardware needed.Top Tip — Liquid Feeding SealWhen feeding syrup, fit the silicone bung into the feeder hole, smear a little petroleum jelly around its perimeter, then TWIST it firmly into position. This creates a tight seal and prevents syrup leaking into the brood box. You could also lightly sand around the hole to remove production mold marks to get an extra tight seal. Need a replacement bung? Order one here → Everything Included — Nothing Extra to BuyComplete kit. Ready to use.Every component your colony needs comes in the box. Here’s exactly what you get for £54.99.6-Frame British National Brood BoxDual 3-frame split design with integrated mesh floors.3.5L Top FeederLiquid syrup or fondant/pattie — no adapters needed.Correx Dividing BoardRemovable divider for dual 3-frame operation. Colour may vary.Open Mesh FloorVentilated mesh for Varroa monitoring and improved airflow.Lid with Strap RecessRecessed indentation for hive strap — secure in transport.2× Entrance Discs & ScrewsOne for each section of the split nuc, with fixing screws.UV Filter Built InEPP’s UV-stable filter means permanent colour — no painting needed.Registered DesignIPO Design No. 6345341 — exclusively designed and sold by Old Castle Farm Hives. Technical SpecificationsFull specifications at a glanceFrame StandardBritish NationalFrame Capacity6 frames (or 2 × 3 frames when split)MaterialExpanded Polypropylene (EPP) — NOT Expanded Polystyrene (EPS)Weight1.6 kg — ultralightFeeder Capacity3.5 litresFeeder CompatibilityLiquid syrup AND fondant / pattie — no adapters neededFloor TypeOpen mesh — Varroa monitoring and improved airflowDivider TypeRemovable Correx (upgrade aluminium composite available separately)Entrance Discs2× included with fixing screws — one per split sectionLidRecessed hive strap indentation — secure in transportUV FilterBuilt in — colour is permanent, no painting requiredPainting RequiredNo — but you can paint with standard smooth masonry paint if preferredRecyclableYes — 100% EPP, fully reprocessableRegistered DesignIPO No. 6345341AvailabilityExclusively from Old Castle Farm Hives Registered under the Intellectual Property Office — Design No. 6345341 · VAT No. 984292283 Expand Your SetupThe complete Poly Nuc rangeEvery product in the range is designed to work seamlessly with your 6 Frame Dual Poly Nuc. Build the exact setup your apiary needs — from a second complete box to individual replacement parts.Tier 1Core Products — Complete, Ready-to-UseStandard · £54.996 Frame Dual Poly Nuc — StandardThe hero product. Full 6-frame British National nuc with 3.5L feeder, Correx divider, mesh floor, lid, and 2× entrance discs. Complete kit — nothing extra to buy.View product →14×12 Version6 Frame Dual Poly Nuc — 14×12The standard nuc with the 14×12 eke extension pre-installed — full 14×12 brood depth straight out of the box. Ideal for beekeepers who run exclusively 14×12.View product →Tier 2Expansion — Scale Up the ColonyExpansion14×12 Eke ExtensionConverts your standard poly nuc to full 14×12 brood depth — giving a growing colony more space without buying a new box. Fits between brood box and feeder.View product →ExpansionBrood Box ExtensionAdditional brood space for thriving, established colonies. The modular way to scale up with your bees as the season progresses — expand, don’t replace.View product →Tier 3Transport & ManagementTransportVented Transport LidPurpose-designed ventilated lid that fits the 6 Frame Dual Poly Nuc precisely. Keeps bees safe, calm, and ventilated during transport.View product →TransportMesh Transport BagCordstring mesh bag for safe transport of the poly nuc. Additional security and ventilation when moving colonies — particularly useful at shows and collection points.View product →Tier 4Upgrades — Premium Component AlternativesUpgradeAluminium Composite DividerUpgrade from the standard Correx divider to a precision-cut aluminium composite version — maximum durability and years of repeated use. Fits without modification.View product →UpgradeStainless Steel Entrance Discs (125mm)Premium corrosion-proof stainless steel alternative to the standard plastic entrance discs. 125mm — purpose-sized for the OCF entrance housing. A one-time buy that outlasts the hive.View product → Tier 5 — Spare PartsKeep every nuc in serviceNothing ever needs replacing wholesale. Individual spare parts mean a single worn or damaged component is a quick, cheap fix — not an excuse to buy a whole new box.PartDescriptionLinkReplacement Feeder (3.5L)Top feeder — liquid syrup or fondant/pattie.View →Replacement LidStandard lid with hive strap recess.View →Replacement Correx Divider (Standard)Standard-depth Correx dividing board. Colour may vary.View →Replacement Correx Divider (14×12)14×12 depth Correx divider for use with the eke extension.View →Spare Perspex Feeder Panels (×2)Replacement Perspex panels for the 3.5L top feeder.View →Spare Silicone Bung (Feeder)Replacement silicone bung for the feeder hole. Apply petroleum jelly and twist firmly for a leak-free seal.View →Plastic Entrance Discs (125mm)Standard plastic hive entrance discs — 125mm.View →Stainless Steel Entrance Discs (125mm)Premium corrosion-proof stainless alternative — 125mm.View → Product GalleryEvery detail, considered The UK’s first EPP poly nuc — only £54.99Complete kit. No painting. No extra kit needed. Exclusively designed and available only from Old Castle Farm Hives. Making beekeeping affordable for all. IPO Registered Design No. 6345341 · Exclusively from Old Castle Farm Hives · VAT No. 984292283Add to Basket
