CBT-25 razor wire is a concertina security barrier made from a high-tensile core wire and sharp steel blades formed into a spiral coil. In most commercial specifications, “CBT-25” refers to a razor blade profile with an approximately 25 mm blade length, but exact dimensions can vary by manufacturer and production standard. I recommend confirming the blade geometry, wire diameter, coil size, material, and packed length before placing a B2B order. This guide explains the main CBT-25 specifications, suitable applications, material options, selection factors, and the information I need to prepare a reliable quotation.
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I prepared this guide for security contractors, fence installers, infrastructure operators, distributors, property developers, and procurement teams comparing CBT-25 razor wire suppliers. It is especially useful when a project requires a deterrent barrier above an existing fence, wall, gate, or restricted-area perimeter. The information can also help buyers create a clearer request for quotation and reduce specification differences between suppliers.
CBT-25 razor wire should be evaluated as part of a complete perimeter system rather than as an isolated product. Supporting fence height, post spacing, bracket design, installation method, local regulations, and site access all affect the final result. Because product codes are not completely standardized across all markets, I advise buyers to request technical drawings or samples when dimensional accuracy is important.
CBT-25 is a type of concertina razor wire in which a flat steel strip is pressed into a series of sharp blades and reinforced with a central steel wire. The finished product is manufactured into a compressed coil for transport and expanded during installation. Interlocking clips or fastening points maintain the spiral shape and help form a continuous barrier.
The core functions are visual deterrence, controlled access, and increased difficulty for unauthorized climbing or cutting. Razor wire does not replace a structural fence, access-control system, lighting, surveillance, or trained security personnel. I therefore treat it as a passive perimeter-security component that must be selected and installed responsibly.
The following table shows commonly requested CBT-25 specification categories. These values are indicative rather than universal, so I recommend using the supplier’s final datasheet and approved sample for purchasing approval.
| Specification Item | Common CBT-25 Reference | Buyer Confirmation Point |
|---|---|---|
| Blade length | Approximately 25 mm | Confirm blade profile and drawing |
| Core wire diameter | Often about 2.5 mm | Confirm tolerance and tensile requirement |
| Steel strip thickness | Commonly around 0.5 mm | Confirm actual thickness and coating |
| Coil diameter | Common options include 450 mm or 600 mm | Select according to fence and security design |
| Expanded coverage | Often specified by project length, such as 7–10 m per coil | Confirm loop count and installation tension |
These five data points are important because a product code alone may not define the complete product. For example, two suppliers may both quote CBT-25 while offering different coil diameters, coating thicknesses, clip quantities, or expanded lengths. A professional quotation should identify the material grade, dimensions, packing method, quantity per coil, and inspection requirements.
CBT-25 razor wire is commonly considered for industrial compounds, warehouses, logistics yards, utility facilities, agricultural boundaries, construction sites, and restricted infrastructure. It may be installed on top of chain link fencing, welded wire mesh panels, masonry walls, or dedicated security brackets. The exact application should be reviewed against local safety, planning, and workplace requirements.
For factories, storage yards, and distribution facilities, CBT-25 can add a visible security layer above a conventional fence. It is useful where the buyer wants to discourage climbing without replacing the complete perimeter structure. I recommend checking vehicle movement, maintenance routes, emergency exits, and the required clearance from public areas before installation.
Power, communications, water, transportation, and other restricted sites may require layered perimeter protection. In these environments, the razor wire should be coordinated with gates, warning signs, cameras, lighting, and inspection procedures. It should not obstruct emergency access or create an uncontrolled hazard for authorized workers.
Some agricultural or remote properties use razor wire where a high-security boundary is required and routine access is limited. However, livestock, wildlife, nearby roads, and public footpaths must be considered carefully. In locations with frequent human or animal contact, a less hazardous fencing solution may be more appropriate.
I generally discuss three material choices when evaluating CBT-25 razor wire: galvanized steel, PVC-coated galvanized steel, and stainless steel. Galvanized steel is often selected for general outdoor use because the zinc coating provides corrosion protection, but the coating mass and process should be confirmed rather than assumed. PVC-coated options add a polymer layer that may be requested for environmental or visual reasons.
Stainless steel can be considered for highly corrosive environments, including coastal or chemically exposed locations, although the higher material cost must be justified by the project conditions. Buyers should identify the stainless grade offered and request material documentation where it affects compliance or service life. I do not recommend choosing a material solely by price without reviewing humidity, salt exposure, cleaning chemicals, and expected maintenance.
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First, I identify whether the project needs a visual deterrent, an anti-climb layer, a boundary extension, or a more controlled restricted-access system. This objective determines whether CBT-25 is suitable and how it should be combined with the existing fence. A perimeter assessment is more useful than selecting a coil only because it is the most common size.
Record fence height, top width, post spacing, gate locations, wall thickness, and the available mounting surface. Then confirm whether the support brackets can carry the coil and whether the expanded diameter will remain within the site boundary. These measurements help prevent ordering a coil that is too large, too small, or incompatible with the support system.
For a CBT-25 inquiry, I suggest specifying blade length, blade width, core wire diameter, strip thickness, coil diameter, expanded length, clip quantity, material, coating, and packaging. If the project has a tender or engineering standard, include the required tolerance and inspection method. A product drawing is particularly helpful when several suppliers use the same CBT-25 designation.
Quantity should be calculated from the actual perimeter and the supplier’s confirmed expanded coverage, not from a generic catalogue estimate. Buyers should also account for corner sections, gates, overlaps, mounting brackets, tie wire, clips, warning signs, and safe handling equipment. I recommend allowing a documented installation allowance only after the layout and coil coverage have been reviewed.
One frequent mistake is comparing only the price per coil while ignoring the expanded length and coil diameter. A lower-priced coil may provide less installed coverage or use a different blade and wire configuration. Another mistake is treating “CBT-25” as a complete specification when the code may vary between suppliers.
Buyers should also avoid assuming that galvanized, PVC-coated, and stainless products provide identical corrosion performance. Coating type, coating mass, steel grade, storage conditions, and exposure environment all influence the selection. Finally, razor wire should not be installed without considering worker training, protective equipment, public safety, and applicable local rules.
CBT-25 pricing normally depends on steel costs, material choice, coating, coil diameter, expanded length, packaging, order volume, and accessory requirements. Minimum order quantity can vary by production schedule and whether the buyer requests a standard configuration or a customized specification. For an accurate quotation, I need the required quantity, destination, material preference, coil dimensions, packaging requirement, and delivery term.
Lead time also depends on raw material availability, production capacity, inspection, packaging, and export arrangements. Standard products are generally easier to schedule than non-standard blade profiles or special coatings, but I confirm the actual production plan before making a commitment. Buyers should request both the estimated manufacturing time and the shipping basis so that the total procurement schedule is clear.
At Wanquan, I support buyers by organizing the inquiry around measurable specifications instead of relying only on a product name. I can help compare blade profile, core wire, strip thickness, coil diameter, coating option, packing format, and required quantity. Where the application is sensitive, I recommend reviewing a drawing, production sample, or pre-shipment inspection requirement before mass delivery.
I can also help coordinate the product with related wire mesh and perimeter-fence components. This may include discussing mounting compatibility, packaging for container loading, labeling, and the technical information required by the buyer’s engineering or purchasing department. The final recommendation should remain based on the site conditions and the customer’s applicable safety requirements.
CBT-25 razor wire can be an effective perimeter-security component when its dimensions, material, coverage, and mounting method match the project requirements. The best buying decision is not based on the product code alone; it depends on a documented specification and a clear understanding of the installation environment. I recommend confirming the five core dimensions, selecting the coating for the actual exposure conditions, and checking compatibility with the supporting fence or wall.
To request a Wanquan quotation, prepare the perimeter length, preferred coil diameter, material or coating, required quantity, destination, and any drawing or tender specification. I can then review the requirements, identify open technical points, and provide a more comparable proposal for your CBT-25 razor wire procurement.
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