Purchase $1,000 of Aluminum or Galvanized Steel commercial fittings and receive a 25% discount on Aluminum and Galvanized Steel pipes. Discount will be applied during checkout.

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The confidence to extend and expand your railings.

Whether you need an internal spigot for a flush joint or a rigid connection which may have to withstand a direct tensile load. Whether you want to replace a damaged section of railing or to simply extend your rail beyond conventional size. Our couplings will help you get there. From Kee Klamp couplings made from Hot dip Galvanised malleable iron to Quick Rail couplings made from the most corrosive resistant aluminum alloy available, to internal locking splices, modular caps and friction fit couplings – this is the one-stop for all your railing coupling needs.


  • Internal spigot couplings for providing a flush joint between two tubes of the same diameter.
  • Sleeve joint couplings for providing an in-line joint between two tubes of the same
  • Mend-a-rail coupling, modular external coupling, friction-fit Internal coupling & locking splice.
  • All coupling connectors are industry standard, durable, non-corrosive and easy to install.
  • Flexibility to use with any pipe, reusable, high-strength fittings. Only a hex-key needed to fit.

What are Handrail Couplings?

The term “coupling” refers to a short tube, or pipe, which features a socket on both ends. These sockets allow the coupling to be attached to a handrail or other tubes, connecting them, which makes it easy to extend a railing further than a standard length. Couplings can be made from aluminum, stainless steel, iron, or other metals, but choosing a strong, sturdy coupling is essential for any construction project, especially if the coupling will be used outdoors.

Types of Pipe Fittings

Whether you’re using an aluminum pipe coupling or a stainless steel coupling, you’ll have to choose your coupling style from a variety of available products. Here are a few common types of pipe fittings:

  • Internal spigot couplings create a flush joint between two pipes that have the same diameter.
  • Sleeve joint couplings offer an in-line joint between two pipes of the same type.
  • Mend-a-rail couplings are perfect for making repairs. These couplings can fix a broken welding point on existing railings or other pipes.
  • Modular external couplings let you add to an existing structure without having to disassemble the original piping.
  • Friction-fit Internal couplings, sometimes called press-fit or interference fit couplings, hold two pipes together using friction alone, without the use of any locking mechanisms, bolts or screws. Friction fit couplings from BuyRailings.com feature a beveled design that allows for quick and easy installation-- no need to drill or weld.
  • Locking splice couplings use a locking mechanism for strong pipe connections. However, they must be used with compatible pipes, so they are not universal couplings.

Benefits of Aluminum Pipe Coupling

Aluminum is a popular metal choice for manufacturing handrail couplings. Aluminum pipe couplings are useful for several reasons: First, they are highly resistant to corrosion, which is particularly useful in outdoor construction. Aluminum is also a lighter metal than steel and is very easy to install. However, aluminum couplings have a low-pressure rating when compared to stainless steel couplings, and can require more maintenance. Before choosing the right coupling for your handrail, consider what metal and style will work best for your structure.

Advantages of Stainless Steel Couplings

While aluminum pipe couplings are popular, stainless steel is still a frontrunner when it comes to railings, pipes, and couplings. Stainless steel has a high corrosion resistance that is well suited to both indoor and exterior use. It’s also temperature resistant, so it can be used even in projects that may be exposed to high heat or bitter cold. Additionally, stainless steel is very easy to find, replace and maintain.

Choosing Handrail Couplings from BuyRailings

BuyRailings offers a variety of aluminum couplings and stainless steel couplings to choose from. Whether you need an internal spigot or flush joint for a load-bearing rail, or need to repair a previously damaged section of your railing, our couplings provide strong connections that will fit seamlessly into your design. All our coupling connectors meet industry standards and are durable and non-corrosive. The best part? Each coupling is reusable, and all you need to install them is a hex key.