When contractors compare vinyl fence systems, it is easy to focus on color options, style, height, and price while leaving out the vinyl fence rail.
But one of the details that matters most on site is the rail size.
The rails are the horizontal members that run between the posts and support the boards or pickets. They are a major part of the fence system. A fence may look good in a brochure, but if the rails are too light for the application, it can affect the finished product, the installation experience, and long-term performance.
At NORTHERNLINE®, we believe contractors need a vinyl fence system that is not only clean and attractive, but practical to install and reliable after the job is complete.
What Do Rails Do in a Vinyl Fence System?
Rails are one of the main structural components in a vinyl fence section.
They connect the posts, hold the boards or pickets in position, and help keep the fence line straight and supported. In a privacy fence, the boards are typically installed into the top and bottom rails. In picket or semi-private styles, the rails still play an important role in keeping the section aligned and secure.
For contractors, the rail is not just a visual part of the fence. It affects how the section handles, how it installs, and how solid the finished fence feels.
What Rail Size Is Common?
Many standard imported vinyl fence systems use a rail size of about 1.5” x 5.5”.
This is common in basic residential vinyl fencing from foreign manufacturers. These systems can work for light-duty applications, but they are often not as substantial as heavier vinyl fence systems. On taller runs, privacy fencing, or exposed areas, a smaller rail can make the fence feel lighter or less rigid.
Rail size is not the only thing that affects fence quality, but it is an easy detail to compare.
What Rail Size Does NORTHERNLINE® Offer?
NORTHERNLINE® offers larger rail sizes than many basic imported vinyl fence systems.
NORTHERNLINE® YUKON uses a 1.5” x 7” rail. This gives the fence more support than a common 1.5” x 5.5” rail and is designed for strong everyday use.
NORTHERNLINE® KODIAK HD uses a 2” x 7” rail. This is the heavier-duty option, built for tougher conditions, higher exposure areas, and projects that need a more rigid fence system.
So, while many imported vinyl fence brands use a 1.5” x 5.5” rail, NORTHERNLINE® offers:
YUKON: 1.5” x 7”
KODIAK HD: 2” x 7”
That added size gives contractors a stronger system to work with.
Why Bigger Rails Matter
A larger rail helps create a more solid fence section between posts.
This is especially important for privacy fencing, because privacy panels have more surface area and catch more wind than open-style fences. A larger rail gives the boards better support and helps the section feel more secure once installed.
It also improves the finished look. A taller vinyl fence with smaller rails can look underbuilt. A larger rail gives the fence a better proportion and a cleaner frame.
For contractors, this matters because the finished product reflects both the installation and the material being used.
Choosing the Right NORTHERNLINE® Option
NORTHERNLINE® YUKON is a strong option for regular residential, strata, and everyday fence projects. It is considered a pro-grade system and is built for daily wear, Canadian weather, kids, pets, and regular use.
NORTHERNLINE® KODIAK HD is the commercial-grade option. It has a larger 2” x 7” rail and is built for heavier use, tougher conditions, high winds, and higher exposure areas. It is also available in 7’ and 8’ heights.
Both options are made in Canada and designed for Canadian conditions.
A Stronger Fence Starts With the Right Rail
Rail size matters because it affects how the fence is installed, how it looks, and how solid it feels when complete.
Many basic imported vinyl systems use a 1.5” x 5.5” rail. NORTHERNLINE® offers larger options, with 1.5” x 7” rails in YUKON and 2” x 7” rails in KODIAK HD.
For contractors, that means a stronger product, a cleaner finished result, and more confidence in the fence system being installed.



