August 11, 2026

How to Measure and Replace RV Window Struts for Dual Pane Windows

This guide explains how RV owners can identify worn window struts, measure replacement struts correctly, and restore smooth, secure operation to dual pane camper windows.

Gas lift strut supporting an open dual pane RV window

RV windows work harder than most people realize. They are opened for airflow, closed before travel, exposed to sun and rain, and constantly affected by vibration on the road. When the window struts start to weaken, the problem is easy to notice: the window will not stay open, feels uneven, drops too quickly, or becomes frustrating to use at camp.

For owners maintaining dual pane RV windows, a replacement set of 2 Window Struts for Dual Pane Windows can help restore smooth support and everyday usability. The key is choosing the right size and measuring carefully before ordering.

What RV Window Struts Do

RV window struts, sometimes called gas lift supports or window stays, help hold an outward-opening window in position. On dual pane RV windows, they provide controlled support so the window can remain open for ventilation without falling shut.

A good strut should feel steady, balanced, and predictable. It should support the window without requiring you to prop it open manually. When the struts are worn, the window may still open, but it may not stay where you want it.

This matters for comfort and safety. A window that drops unexpectedly can damage hardware, pinch fingers, or make ventilation unreliable during warm weather camping.

Signs Your RV Window Struts Need Replacement

You may need new RV window struts if the window slowly falls after being opened, the left and right sides do not move evenly, the window feels loose in wind, the strut body is bent or corroded, or the mounting ends no longer hold securely.

Another common sign is inconsistent movement. If one side of the window feels strong and the other side feels weak, replacing both struts as a pair is usually the better approach. Matching support on both sides helps the window open evenly and reduces stress on the frame.

Why Measurement Matters

Window struts are not one-size-fits-all. Length and mounting position affect how far the window opens, how much support it receives, and whether the strut can operate without binding.

The product page for these dual pane window struts notes that owners should refer to the photo for measurement instructions and make sure not to include the window latch when measuring. That detail is important because including the latch can lead to the wrong size selection.

Before ordering, measure the strut based on the correct points shown in the product reference image. If your measurement falls outside the listed options, the product page also provides an “Other Size” option and asks customers to email the required measurement.

A Simple Replacement Checklist

Before replacing RV window struts, open the window carefully and support it by hand. Do not rely on a weak strut to hold the window while you work.

Check both existing struts for length, mounting style, and condition. Look at the attachment points on the window and frame to make sure they are not cracked or loose. If the brackets are damaged, replacing only the strut may not solve the problem.

Once you have confirmed the correct size, replace the struts as a pair when possible. This helps keep the lift force balanced and prevents one new strut from working against an older weak one.

After installation, open and close the window several times. The motion should feel smooth, and the window should stay open without sudden dropping.

Best Uses for These Dual Pane Window Struts

These replacement window struts are useful for RV owners dealing with aging window supports, restoring a used camper, repairing storm or vibration damage, or preparing an off-road trailer for a long trip.

They are especially practical for dual pane windows that are still in good condition but no longer hold position properly. Instead of replacing the entire window assembly, a correctly sized strut pair can restore the function of the existing setup.

The product is made with aluminum and plastic materials and is designed for RV applications, making it a focused replacement part rather than a generic household hardware solution.

How to Extend the Life of RV Window Struts

A few simple habits can help your replacement struts last longer. Avoid forcing the window beyond its normal opening range. Close windows before towing, especially on rough roads. Clean dust and grit from the hinge and strut area so the window does not bind.

It also helps to inspect window hardware before each major trip. Check for loose screws, cracked brackets, uneven movement, and signs of corrosion. Small adjustments early can prevent a window support problem from turning into a larger repair.

Related RV Window Parts to Check

When replacing struts, it is smart to inspect nearby window components at the same time. RV Parts Giant also carries window-related parts in its RV Window Struts & Gas Lift Supports collection, including window curtains, window latches, screen retainer clips, shade repair kits, and insulation products.

For Black Series owners, the broader Black Series RV Parts collection can also be useful when checking other exterior and interior replacement parts for model-specific maintenance.

Final Thoughts

Weak window struts can make a good RV window feel unreliable, but the fix is often straightforward. By measuring carefully, choosing the correct size, and replacing struts in pairs, RV owners can bring back smooth window operation without replacing the full window assembly.

For dual pane camper windows that no longer stay open properly, 2 Window Struts for Dual Pane Windows are a practical replacement part to keep your RV more comfortable, functional, and ready for the road.

Updated: September 05, 2026