What Are Gas Struts Used For? A Complete Guide to Gas Strut Applications

What Is a Gas Strut?

A gas strut (also called a gas spring or gas lift) is a device that uses compressed nitrogen gas inside a sealed cylinder to provide a controlled pushing or lifting force. They're designed to support, lift, lower, and hold lids, doors, and hatches in a controlled and safe manner.

You've almost certainly used one today without thinking about it — they're everywhere.

Automotive Applications

The most common use of gas struts is in vehicles. They're used to support:

• Boot lids and tailgates — keeping the boot open while you load shopping or luggage
• Bonnets (hoods) — holding the bonnet safely open during engine maintenance
• Rear hatches on estate cars and SUVs — providing smooth, controlled opening and closing

Over time, automotive gas struts lose their pressure and need replacing. Signs of a failing strut include a boot lid that drops suddenly, won't stay open, or feels unusually heavy to lift.

At SpringFixUK, we stock OEM-spec replacement gas struts for BMW, Volkswagen, Fiat, Porsche, and more.

Furniture and Home Applications

Gas struts are widely used in home furniture, including:

• Ottoman storage beds — lifting the mattress platform to access under-bed storage
• Kitchen cabinet flap doors — providing smooth, controlled opening for wall-mounted cabinets
• Sofa beds and recliner mechanisms — assisting with smooth folding and unfolding

Workshop and Industrial Applications

In workshops and industrial settings, gas struts are used for:

• Toolbox and tool chest lids — keeping heavy lids safely open during use
• Machine guards and access panels — holding panels open for maintenance
• Hydraulic gate closers — automatically closing garden, driveway, and commercial gates

Office Applications

Gas lifts are the mechanism inside almost every adjustable office chair — the pneumatic cylinder that lets you raise and lower your seat height with a lever. When an office chair sinks on its own or won't hold its height, the gas lift needs replacing.

How Long Do Gas Struts Last?

The lifespan of a gas strut depends on how often it's used and the environment it operates in. Automotive struts typically last 5–10 years. Furniture and industrial struts can last longer if kept clean and dry. Exposure to extreme temperatures, moisture, or heavy use will shorten their lifespan.

When Should You Replace a Gas Strut?

Replace a gas strut when you notice:

• The lid or door no longer stays open on its own
• The opening or closing action feels jerky or uneven
• The strut body is visibly leaking oil or is corroded
• The end fittings are cracked or loose

Find the Right Gas Strut at SpringFixUK

Whether you need a replacement for your car boot, ottoman bed, kitchen cabinet, or toolbox, SpringFixUK stocks a wide range of gas struts and accessories with fast UK delivery. Browse our collections to find the right strut for your application.