DN4 Brood Frames (Hoffman)British Standard National brood frames — ready to fitHigh-quality Hoffman self-spacing frames for National brood boxes. Supplied in boxes of 11, 55, or 110 with volume pricing. Each frame is precision-cut and ready to accept wired foundation. DN4British Standard deep broodHoffmanSelf-spacing design11–110Volume packs available£1.00From per frame Technical SpecificationsBuilt to British StandardFrame TypeDN4 British Standard deep brood (Hoffman self-spacing)UseFor National brood boxes — 11 frames per boxSpacingHoffman shoulders provide precise self-spacing — no additional spacers neededPack SizesBox of 11 / Box of 55 / Box of 110 — volume pricing availablePrice From£1.00 per frame (volume discounts apply)FoundationAccepts wired deep brood foundation — see Wired Deep (Brood) FoundationAssemblyFrames supplied flat-packed for self-assembly. For ready-to-use option, see Fully Assembled DN4 Frames Plastic FoundationMaterialQuality timber — precision-cut for accurate bee spaceCompatibilityStandard British National brood boxes from any manufacturerTop Tip — Pair with Wired FoundationDN4 frames work perfectly with our Premium Wired Deep Brood Foundation. Available in packs of 11 (£11.67) or boxes of 100 (£91.67). The wired foundation provides structural support and helps prevent comb collapse during extraction — essential for brood frames that will be moved, inspected, and spun repeatedly throughout the season. Complete Wooden Hive RangeEverything you need — roof to floorBrowse the complete Old Castle Farm Hives Western Red Cedar range. From complete hive kits to individual boxes, frames, foundation, and essential accessories — all built to British National standard.Tier 1Complete Hive Kits Complete Kit – AssembledNational Hive Complete (Assembled) View product → Complete Kit – Flat PackNational Hive Complete (Flat Pack) View product → 14×12 Complete – AssembledNational Hive 14×12 (Assembled) View product → 14×12 Complete – Flat PackNational Hive 14×12 (Flat Pack) View product → Tier 2Individual Boxes & Components Brood BoxNational Brood Box View product → 14×12 Brood Box14×12 Deep Brood Box View product → Super BoxNational Super Box View product → Mesh FloorOpen Mesh Floor (Complete) View product → Tier 3Frames & Foundation Brood FramesDN4 Brood Frames (Hoffman) View product → Super FramesSN4 Super Frames (Hoffman) View product → Brood FoundationWired Deep (Brood) Foundation View product → Super FoundationWired Shallow (Super) Foundation View product → Tier 4 — Essential AccessoriesEverything you need to complete your setupFrom queen excluders to mouse guards, frame runners to hive connectors — browse the complete range of National hive accessories and hardware.AccessoryDescriptionLinkWood & Wire Queen ExcluderTraditional wood-framed wire queen excluder. Available in packs of 1, 5, 10, or 20.View →Plastic Queen Excluder (460mm × 460mm)Lightweight plastic queen excluder for National hives.View →Plastic Queen Excluder (500mm × 500mm)Larger plastic queen excluder for extended hive formats.View →Entrance BlockWooden entrance reducer for controlling hive access and ventilation.View →Foam National Hive Entrance BlockerFoam entrance seal for secure hive closure during transport or treatment.View →Universal Mouse Guard (315mm)Metal mouse guard for winter protection. 315mm width.View →Universal Mouse Guard (450mm)Wider variant for larger entrances. 450mm width.View →Stainless Steel Mouse GuardPremium stainless steel mouse guard for long-lasting protection.View →National Hive StandSturdy wooden hive stand for elevating your National hive.View →Metal Frame RunnersReplacement metal runners for National brood and super boxes.View →Metal Castellations (10 or 11 spaces)Metal frame spacing guides for precise Hoffman frame positioning.View →Frame PerchConvenient frame rest for inspections and frame handling.View →Queen Tracking PinsColour-coded pins for marking queen location and tracking colony status.View →Hive Connectors (Stainless Steel)Secure stainless steel connectors for joining hive boxes.View →Adjustable Hive ConnectorsAdjustable catch connectors for securing wooden hive components.View →Heavy Duty Beehive HandlesRobust metal handles for easier hive box lifting and transportation.View →Hive Corners (Set of 4)Protective metal corner brackets for reinforcing hive boxes.View →Varroa MeshReplacement varroa monitoring mesh for open mesh floors.View →Plastic Varroa Mesh (500mm × 500mm)Durable plastic varroa mesh roll for custom floor construction.View →Oxalic Acid Granules (500g Tub)Highly effective wood bleach for removing black water stains, tannin spots, and rust marks from bare cedar.View →Bee EscapesBrowse our full range of bee escape boards and clearing devices.View → DN4 Brood Frames — volume pricing availableHoffman self-spacing brood frames for National hives. Precision-cut and ready to accept wired foundation. Boxes of 11, 55, or 110. Making beekeeping affordable for all. Add to Basket
