Skip to content
Contractor-Focused Masonry Supply — Delivered Nationwide
Contractor-Focused Masonry Supply — Delivered Nationwide

Speak With a Masonry Expert Today — Call (833) 246-3900

Request a Quote | Quick Order | Reorder
Glazelock interlocking plastic shims used for precise leveling and spacing during window and door installation

Glazelock Interlocking Shims

SKU GLZ01
by Glazelock
$37.50 - $117.07
$89.76
$37.50 - $117.07
$89.76
1000.0item | $0.09 / item

Ships in 1–2 business days

Request a quote

INTERLOCKING SHIMS

The world’s only interlocking stackable horseshoe shim provides secure, easy-to-use leveling for windows, doors, curtainwalls, and more.

Features

  • Easy stackable placement with Glazelock’s patented collapsible locking mechanism

  • Simplifies alignment of multiple shim applications

  • Eliminates the need to tape or glue shims together

  • Fits around bolts, fasteners, and obstacles up to 1/2″

  • Interlocking design won’t split or creep out of position

  • Trusted by high-performance professionals across multiple industries

  • Patent No. 5,640,813

  • Available in standard black, red, and blue colors

  • Proudly made in the USA

Why Use Glazelock Interlocking Shims

  • Reduce material and labor costs

  • Secure, stable, and easy to install

  • Simplifies installation across a multitude of projects

  • Multiple sizes and variations available

  • Proudly made in the USA

PRODUCT VARIANTS 

SKU Size Color Quantity
GLZ01 1-1/2 x 3 x 1/4 Black 1000/box
GLZ02 1-1/2 x 3 x 1/8 Red 1000/box
GLZ03 1-1/2 x 3 x 1/16 Blue 1000/box
GLZ04 3 x 4 x 1/4 Black 400/box
GLZ05 3 x 4 x 1/8 Red 500/box
GLZ06 3 x 4 x 1/16 Blue 1000/box
Call Us

+1 (833) 246-3900

Email Us

sales@masonrydirect.com

Chat With Us

We reply instantly

Free Shipping

On orders over $2,500

FAQ

How do I track my order?

Once your order ships, you will receive a shipping confirmation email with your tracking number and carrier details.

You can also track your order anytime by visiting our tracking page below and entering your order information:

👉 https://www.masonrydirect.com/apps/tracking

If you have trouble locating your tracking information, please contact our support team with your order number and we’ll be happy to assist you.

Do you offer free freight?

Yes, we offer free freight on orders over $2,500.

How long does shipping take?

Most orders ship and deliver within 4-8 business day.

Can I order in bulk or wholesale quantities?

Yes. We specialize in bulk and wholesale orders. Use our Wholesale Order form or request a quote.

Can you help me choose the right product?

Yes. Our team can review specs and recommend the correct product for your project.

Who do I contact with questions?

Call (833) 246-3900 or email sales@masonrydirect.com.