Glazelock shims assorted plastic stackable horseshoe shims in various lengths and thicknesses for glazing or spacing
The image shows glazelock plastic and wood shims including snap-off stackable horseshoe shims in red and blue colors
Blue red and black interlocking stackable plastic glazelock shims for precise spacing in wood shims applications
Black plastic glazelock shims with a textured ribbed surface for secure installation in wood or plastic applications
Glazelock shims black plastic snap-off stackable wood shims in clear package labeled shims with red and white text
Black plastic glazelock shims 1-7/8 inch wide snap-off stackable horseshoe wood shims for precise leveling
Black glazelock shims plastic card holder with american flag sticker and made in usa text stacked wood shims
Black glazelock shims plastic card holder with american flag sticker and made in usa text with stacked cards
Glazelock shims black plastic modular connector blocks with matte finish and embossed circular details for wood shims
A package of gray plastic glazelock shims labeled easy to peel for cabinet window and door installations
Glazelock shims black plastic snap-off stackable horseshoe shims 1-7/8 inch wide in a clear labeled package
Glazelock shims black plastic snap off stackable horseshoe shims 1 7 8 inch wide plastic shims for wood shims
Green plastic glazelock shims with u-shaped handle and six rectangular segments for wood shims use
Glazelock shims black plastic u-shaped snap-off stackable wood shims with rectangular segments and circular indentations
A package of gray plastic glazelock shims labeled easy to peel for cabinet window and door installations
Glazelock shims assorted plastic stackable horseshoe shims in various lengths and thicknesses for glazing or spacing
The image shows glazelock plastic and wood shims including snap-off stackable horseshoe shims in red and blue colors
Blue red and black interlocking stackable plastic glazelock shims for precise spacing in wood shims applications
Black plastic glazelock shims with a textured ribbed surface for secure installation in wood or plastic applications
Glazelock shims black plastic snap-off stackable wood shims in clear package labeled shims with red and white text
Black plastic glazelock shims 1-7/8 inch wide snap-off stackable horseshoe wood shims for precise leveling
Black glazelock shims plastic card holder with american flag sticker and made in usa text stacked wood shims
Black glazelock shims plastic card holder with american flag sticker and made in usa text with stacked cards
Glazelock shims black plastic modular connector blocks with matte finish and embossed circular details for wood shims
A package of gray plastic glazelock shims labeled easy to peel for cabinet window and door installations
Glazelock shims black plastic snap-off stackable horseshoe shims 1-7/8 inch wide in a clear labeled package
Glazelock shims black plastic snap off stackable horseshoe shims 1 7 8 inch wide plastic shims for wood shims
Green plastic glazelock shims with u-shaped handle and six rectangular segments for wood shims use
Glazelock shims black plastic u-shaped snap-off stackable wood shims with rectangular segments and circular indentations
A package of gray plastic glazelock shims labeled easy to peel for cabinet window and door installations
Glazelock - Leveling Shims

Glazelock® Snap-Off Stackable Horseshoe Shims — 1-7/8" Wide

A partner brand, sold by FLI Products

Made in USA

$89.95
/
Shipping calculated at checkout.
Size
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  • In stock, ready to ship
  • Backordered, shipping soon
  • Snap-off sections: Shorten the shim at its break points to suit your installation.
  • Stackable spacing: Combine shims to build the thickness your project requires.
  • Open horseshoe shape: The 5/8-inch slot positions around compatible bolts, pipes and hardware.
  • Made in the USA: High-impact plastic shims in assorted colors.

Size and design

Each shim is 1-7/8 inches wide with a 5/8-inch slot. The U-shaped horseshoe profile combines snap-off sections with a stackable design.

Fit the shim to the job

For compatible window glazing, door installation or cabinet alignment, choose the thickness you need, shorten at the snap-off sections as appropriate and stack where your installation calls for it.

Before ordering

Check the required width, slot clearance and thickness against your project specifications.

Material and colors

High-impact plastic in assorted colors. Made in the USA.

Find this product online and in stores — see Where to Buy

14-Day Returns

Not happy? Request a return within 14 days of delivery.

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FAQs

What are Glazelock snap-off shims? +
Glazelock snap-off shims are stackable plastic shims designed for glazing and spacing applications. They snap apart cleanly after installation to remove excess material, leaving a flush, professional finish.
What are snap-off shims used for? +
Snap-off shims are used in glazing, window installation, and spacing applications where excess shim material needs to be removed cleanly after the frame is set.
Are Glazelock shims Made in USA? +
Yes. Glazelock shims have been Made in the USA since 1997.
What makes Glazelock snap-off shims different? +
Glazelock snap-off shims are stackable and designed to break cleanly at score lines, leaving no jagged edges — ideal for professional glazing and window installation work.

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