GlazeLock™ Precision Leveling Shims For Windows, Doors & Tile

Installer-Driven Innovation — Made In USA For Professional & DIY Use

GlazeLock™ precision leveling shims are engineered to eliminate misalignment, lippage, and uneven gaps in window, door, and tile installations. Designed with input from professional installers, GlazeLock shims are made from durable, non-compressible materials that hold their position permanently — unlike wood shims that swell, shrink, and rot over time.

Whether you're a contractor shimming a door frame on a job site or a homeowner leveling a window for a perfect fit, GlazeLock gives you the precision and reliability that wood shims simply can't match. Made in the USA.

Why Choose GlazeLock™ Leveling Shims

Precision Leveling

Eliminates lippage and misalignment in windows, doors, and tile installations
Non-Compressible Material

Holds position permanently — won't swell, shrink, or rot like wood
Installer-Driven Design

Engineered with feedback from professional contractors for real-world performance
Multiple Sizes Available

Covers a wide range of gap widths and installation requirements
Works For Windows, Doors & Tile

Versatile across residential and commercial applications
Made In USA

Proudly manufactured in America for quality and consistency

Professional Results For Contractors & Serious DIYers

Small installation mistakes compound into big problems — drafts, sticking doors, cracked tile grout, and failed inspections. GlazeLock shims give you the precision control to get the installation right the first time, saving time, materials, and callbacks. They're the choice of professional window and door installers who need a shim they can trust on every job.