Tier 2 · ExpansionExpand, don’t replaceConvert your standard 6 Frame Dual Poly Nuc to full 14×12 brood depth — giving a growing colony the space it needs without buying a new box. Simply fits between the brood box and feeder. Made from the same ultralight, waterproof EPP material as the core nuc. Designed to Fit PerfectlyAdds 14×12 depth in secondsThe eke extension slots seamlessly between your existing brood box and top feeder. No tools, no adapters, no complicated fitting — just lift the feeder, drop in the eke, and you’re done.Instant InstallationFits between the brood box and feeder in seconds. No tools, no fuss. Remove it just as easily if you need to revert to standard depth.Protect Your InvestmentYou’ve already got the nuc, the feeder, the divider. Don’t buy a whole new box — just add the eke and give your bees the extra space they need.Dual Split Still WorksThe removable divider still splits the box into two independent 3-frame colonies at 14×12 depth — queen rearing and swarm management work exactly the same way.14×12 Correx Divider Available SeparatelyThe standard Correx divider works , but a taller 14×12 Correx divider is available if you prefer a full-height divider. Colour may vary.14×12 Eke Extension Assembled with EkeGive Your Bees Room to GrowWhen to add the eke extensionAs your colony builds up through spring and early summer, standard British National depth can start to feel cramped. Adding 14×12 depth gives your bees the brood space they need without the upheaval of transferring to a new box.Fast Spring Build-UpThriving colonies need space. 14×12 depth gives the queen room to lay without congestion — reducing swarming pressure and maximising brood production.No DisruptionAdding the eke takes seconds and requires no frame reshuffling or colony disturbance — just lift the feeder, slot in the eke, replace the feeder. Done.Removable When Not NeededIf you want to overwinter at standard depth or revert for any reason, simply remove the eke. The nuc works perfectly either way — you’re in full control. Same EPP MaterialAll the benefits of EPPThe eke extension is manufactured from the same Expanded Polypropylene as the core nuc — meaning it’s ultralight, waterproof, impact-resistant, and never needs painting.No Painting RequiredEPP’s UV-stable neutral colour is permanent. Simply wipe clean each season — no brushes, no prep, no maintenance.Superior InsulationEPP’s thermal properties keep colonies warmer in winter and cooler in summer — maintaining optimal brood conditions year-round.UltralightEPP is one of the lightest hive materials available — adding the eke barely increases the nuc’s weight, even when fully loaded with frames. Technical SpecificationsFull product specificationsProduct Type14×12 Eke ExtensionCompatibility6 Frame Dual Poly Nuc (fits between brood box and feeder)Frame StandardBritish National 14×12 depthMaterialExpanded Polypropylene (EPP)InstallationTool-free — slots between brood box and top feederDivider Compatibilitytaller 14×12 Correx divider available separatelyUV FilterBuilt in — colour is permanent, no painting requiredPainting RequiredNo — but you can paint with standard smooth masonry paint if preferredWaterproofYes — EPP has zero water absorptionRecyclableYes — 100% EPP, fully reprocessableAvailabilityExclusively from Old Castle Farm Hives 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 →Expand, don’t replace — protect your investmentGive your growing colony the space it needs. Tool-free installation. EPP construction. No painting required. Exclusively designed and available only from Old Castle Farm Hives. Add to Basket
