How to Install Tempered Glass: Step-by-Step

Quick Answer

Installing tempered glass side panels is a straightforward process that takes five to ten minutes with a Phillips screwdriver. The key steps are powering down and unplugging your PC, removing the old side panel, aligning the glass panel with the case mounting points, securing it with the provided thumbscrews or clips, and confirming it sits flush with no movement.

Preparation and Safety Before You Start

Tempered glass is far more durable than regular glass but it still requires careful handling. Before you begin, power down your PC completely and unplug the power cable from the wall. Ground yourself by touching the metal case frame to discharge static, or use an anti-static wrist strap. Clear a stable, flat workspace and lay down a cloth or foam mat. Most tempered glass panels ship with a protective film on both sides: peel these off before installation to avoid trapping residue against the glass. Check the included hardware bag from your case for the correct thumbscrews or mounting clips. Gigabyte, Lian Li, Fractal, and NZXT cases each use slightly different mounting systems but the principle is consistent. Handle the glass by the edges or use the foam packaging as a grip surface. Do not use a finger-in-the-middle grip on a large panel. ## Step-by-Step Installation Process

Remove the existing side panel from your PC case, which is typically held by two thumbscrews at the rear or a slide-and-lift mechanism depending on your case model. Set it aside carefully. Locate the mounting points for the tempered glass panel: most cases use four rubber-padded standoffs at the corners or a top-and-bottom rail system. Rubber grommets are important and should not be removed since they cushion the glass and prevent vibration cracking. Align the tempered glass panel with the mounting points and lower it into place. For cases with corner-screw systems, hold the glass with one hand while threading the first thumbscrew loosely with the other, then add the remaining screws before tightening any of them. Tighten in an X pattern (opposite corners alternating) to distribute pressure evenly across the panel. Do not overtighten: snug contact with the rubber grommet is sufficient. For slide-on systems, angle the top edge into the case channel first, then lower the bottom edge into its groove and push gently until it clicks or sits flush. ## Final Checks and Common Mistakes

Once installed, gently push on the centre and corners of the panel to confirm it does not flex or shift. A correctly installed tempered glass panel has zero give when pushed lightly. If the panel rattles, one or more of the rubber grommets is likely missing or misaligned. The most common mistake is over-torquing thumbscrews directly against the glass without a rubber grommet in place, which creates stress fractures over time. If your panel came with small rubber washers, always use them between the thumbscrew head and the glass surface. Wipe the interior surface of the glass with a microfibre cloth before closing up your build to remove fingerprints and smudges that will be visible once the PC is powered on and RGB lighting is active. ### FAQ

Can tempered glass side panels break during installation? Tempered glass is heat-treated to be four to five times stronger than regular glass. Breakage during installation is rare and usually caused by overtightening screws without rubber grommets, dropping the panel on a hard surface, or applying pressure at a sharp corner. Handle carefully and use the provided rubber cushioning hardware. ### What tools do I need to install a tempered glass panel? Typically just a Phillips head screwdriver. Most tempered glass panels use thumbscrews that can be hand-tightened without any tools. Some sliding-rail systems require no tools at all. ### My tempered glass panel does not fit flush. What should I do? Check that all rubber grommets are seated correctly in their mounting holes and that no cables from inside the case are pressing against the panel. On cases with adjustable standoffs, loosen and reposition them to match the panel's hole spacing before retightening.