Glazelock Shims: The Professional's Guide to Perfect Leveling
🔧 Why Leveling Separates Professional Results from Amateur Ones
A door that swings perfectly, a tile floor with no lippage, a window that seals completely, an appliance that doesn't rock — these outcomes depend on precise shimming at installation. Glazelock interlocking precision shims are the tool that makes professional-grade leveling accessible to serious DIYers and essential for contractors. Made in USA from moisture-resistant plastic, they interlock for precise adjustment and hold their position once set.
Why Plastic Shims Beat Wood Shims
Moisture resistance: Wood shims absorb moisture and swell, changing the gap they're filling over time. Glazelock plastic shims don't absorb moisture — they maintain their dimensions in wet conditions indefinitely.
Compression resistance: Wood shims compress under load. Plastic shims don't. The gap you set at installation is the gap you have years later.
Precision: Wood shims are tapered and imprecise. Glazelock shims interlock in precise increments, giving you exact control over the gap you're creating.
Rot resistance: Wood shims in wet or humid environments eventually rot. Plastic shims don't.
Snap-off tabs: Glazelock shims have snap-off tabs that allow you to trim the shim flush with the surface after installation — no saw required.
Applications: Where Glazelock Shims Excel
Tile installation: Tile lippage is one of the most common and visible tile installation defects. Glazelock shims used during installation ensure consistent tile height across the entire floor or wall surface. The interlocking design allows precise adjustment; the moisture resistance means they perform perfectly in wet-set tile applications.
Door installation and adjustment: Glazelock shims provide precise, stable shimming for door jambs, ensuring the door hangs plumb and swings freely. The snap-off tabs allow clean trimming after installation.
Window installation: A window that's not perfectly plumb and level won't seal properly, won't operate smoothly, and will create energy efficiency problems. Glazelock shims provide the precision needed for professional window installation.
Appliance leveling: Refrigerators, dishwashers, washing machines, and dryers all need to be level for proper operation. Glazelock shims provide stable, non-compressing leveling that holds position under the vibration and load of operating appliances.
Cabinet installation: Kitchen and bathroom cabinets must be level and plumb for doors and drawers to operate correctly.
Flooring installation: Subfloor leveling, underlayment shimming, and transition strip installation all benefit from Glazelock's precision and stability.
The Interlocking Design: Why It Matters
The interlocking feature is what sets Glazelock apart from standard plastic shims. Standard plastic shims are single pieces that can shift or slide during installation. Glazelock shims interlock with each other, creating a stable, unified shimming assembly that holds position during and after installation — critical in applications where the shim is under load.
How to Use Glazelock Shims: Door and Window Framing
- Position the door or window unit in the rough opening
- Insert Glazelock shims at the hinge locations and strike plate location
- Adjust shim depth until the unit is plumb and level
- Fasten through the shims into the framing
- Score and snap off the protruding shim material
Made in USA
Glazelock shims are manufactured in the USA from moisture-resistant plastic. For a product that's built into your home's structure, American manufacturing and quality standards matter.
Where to Buy
Glazelock interlocking precision shims are available at www.fliproducts.com/collections/glazelock. Available in multiple sizes and configurations for different applications.
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