Western Red Cedar Open Mesh FloorComplete Varroa monitoring floor — assembled and sandedComplete open mesh floor with slide-out inspection tray, entrance block, and angled alighting board. Monitor Varroa levels at a glance without disturbing the colony. Hand-sanded Western Red Cedar, assembled to a premium finish before dispatch. VarroaMonitoring mesh baseSlide-outInspection tray includedEntranceBlock & alighting boardSandedPremium assembled finish Evidence-Based Varroa ManagementMonitor mite levels without opening the hiveThe open mesh base allows Varroa mites to drop through naturally, collecting on the removable inspection tray below. Check infestation levels weekly without disturbing the colony — a simple, passive monitoring system that puts you in control.Visual Mite CountingSlide out the inspection tray and count Varroa mites on the white surface. No chemical treatment needed to assess infestation — just observation and a pencil.Weekly Monitoring RoutineEstablish a weekly check without opening the hive. Track mite drop trends over time and intervene only when threshold levels are reached.No Colony DisturbanceCheck mite levels from below without lifting boxes, removing frames, or disrupting the brood nest — less stress on the colony, less work for you. Complete Floor Assembly Top Tip — Still Using a Solid Floor?If your hive is still on a solid floor, upgrading to an open mesh floor is one of the simplest, most effective improvements you can make. Varroa monitoring becomes effortless — no hive opening, no frame disturbance, just a weekly tray check. Better ventilation reduces moisture buildup in winter, creating a healthier environment for the colony. The mesh floor is an evidence-based upgrade that pays for itself in reduced colony losses and easier management. Technical SpecificationsBuilt to British National standardMaterial1st quality Western Red Cedar (Thuja plicata)Floor TypeOpen mesh Varroa monitoring floor with full assemblyFinishAssembled — hand-sanded to a smooth, premium, paint-ready surfaceDimensionsStandard British National hive dimensions — universal compatibilityMesh BaseVarroa monitoring mesh fitted to cedar frame — allows mite drop-throughInspection TraySlide-out white tray for counting mites — removes without disturbing colonyEntrance BlockAdjustable wooden entrance reducer included for seasonal managementAlighting BoardAngled landing platform assists returning foragers carrying pollen loadsCompatibilityFits all British National hive boxes and components from any manufacturerVentilationImproved airflow reduces winter moisture buildup and condensationTreatmentNo chemical preservatives required — cedar’s natural oils provide inherent protectionPaintingOptional but recommended — use exterior wood primer paint or quality wood treatmentUseReplacement floor for existing hives or upgrade from solid floorsGuarantee12 months against manufacturing defects Complete Wooden Hive RangeEverything you need — floor to roofBrowse 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 → Complete mesh floor assembly — sanded and readyMonitor Varroa levels effortlessly without disturbing the colony. Assembled with inspection tray, entrance block, and alighting board. Making beekeeping affordable for all. Add to Basket
