4" Flex Fence

The strongest and most durable vinyl rail product on the market.

Flex Fence or flexible fencing is a style of equine or decorative fencing that utilizes high tensile galvanized steel wire with a bonded or trapped polymer around the wire. Highly visible, it is one of the preferred methods of safely containing horses in a paddock. The polymer coating comes with a varying warranty based on the style or thickness of the polymer coating. Our Flex Fence rail in a 4.25” width comes with a 30-Year LTD Warranty against any cracking peeling, chipping, discoloration, manufacturer’s defect, or UV weathering. It does not cover abuse or misuse; we recommend using the manufacturer’s installation instructions. This rail is the strongest and most durable wide rail product on the market. This unique rail is joined on the posts with a bracket that allows the continuous line to slide through. If a horse hits it, tree falls on it, or car runs into it, it will simply flex on impact and then return to its original shape when the object is removed. For severe impacts the rail may break and with a splice buckle is easy to fix.

The best type of equine fencing on the market is a product that combines safety, durability, and cost to create a fence that is affordable, looks great, is highly functional, and has low maintenance. All of our Flex Fence products have years of research and testing behind them, resulting in a fence that is one of the safer equine fences on the market today.

Rail Size: 4.25″

Roll Length: 660′ or 330′

Colour: White, Black, or Brown

Break Strength: Up to 4,200 lbs per rail

Material: 3x 12.5 gauge double-coated high tensile wires

Post Compatibility: Wood

Calculations Guide

# of posts * # of rails = # of brackets required

# of brackets * 2 = # of screws required for brackets

# of rolls – 1 = # of splice buckles required

# of rails = # of end tensioners & end buckles required (for fences up to 660′ with 1 corner and 2 ends)

# of rails * 2 = # of end tensioners required (for fences over 660′ or with 2+ corners and 2 ends)

Image Product Price Variation Quantity Buy

Why Choose FLEX?

The 4.25" Plus Flex Fence® still gives you a prestigious white board fence look, but with safety and flexibility in mind. Not to mention it comes with a Lifetime Limited Warranty!

Revolutionary hardware provides the easiest Flex Fence® installation on the market. We've also selected the best polymer material, which contains the maximum color and UV inhibitors that the polymer can absorb. Mildew-resistant formula makes Flex Fence® the future standard for horse farms. With little-to-no maintenance, Flex Fence® gives you more time to ride!


Provides many years of service with little maintenance


High performance product backed by industry-leading service


Flexes on impact instead of splintering or breaking


Watch our video by knowledgeable salesperson Justin to learn about why Flex makes such a great fencing option for every farm.
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Flex Fence Components
  • Components

Flex Fence Bracket

Allows Flex rails to move when something comes in contact with it

Shockline Electric Coated Wire Flex Fence 1320′

Benefits of electric combined with visibility benefits of a poly coating

Raceline Coated Wire Flex Fence 1320′

Benefits of high-tensile wire combined with benefits of a poly coating

Flex Fence End Buckle

Used to terminate a line of Flex rail at the post

Flex Fence End Tensioner

Used to start and tighten Flex fence horse fence

Flex Fence Splice Buckle

Connects two ends of Flex rail easily and without stripping wires

Insulator Shockline Tube 100 ft

Ideal for creating wraparound insulators for corner and end posts

Tensioner Insulated Wire Kit

Quick, easy way to complete your Shockline or braid/rope ends
Upgrade your existing fence

Transform your Property

YES! We can do that


Our professional installation team can install your FLEX fencing in now time with expert results and quick turnaround.