A stack of black textured plastic glazelock shims with one tapered wedge separated below the stack
Glazelock GL-H8 tapered plastic shim dimension diagram showing a labeled pack and a single textured shim measuring 7.75 by 1.5 inches.
Glazelock product-family chart showing U-shaped, interlocking, snap-off, flat-plate, tapered, Wedge-Lock, and pre-scored wood shims.
Glazelock graphic showing stacked blue, red, and black interlocking shims above a shim assortment and commercial building photo.
Glazelock application collage showing shims used for tile spacing, window and door installation, cabinetry, and countertop leveling.
Person tapping a black textured Glazelock tapered shim into a gap beside a white window frame with a claw hammer.
Glazelock gl-h8 tapered wedge shims are black plastic shims with a textured grid surface measuring 1-1/2 by 7-3/4 inches
Single black Glazelock GL-H8 tapered plastic shim with a raised grid texture and embossed brand name on a white background.

Glazelock® GL-H8 Plastic Tapered Wedge Shims, 7-3/4 x 1-1/2 In | 288-Pack | Made in USA

A partner brand, sold by FLI Products

Made in USA

Regular price$53.73
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  • In stock, ready to ship
  • Backordered, shipping soon
  • Tapered adjustment: Wedge-shaped shims help adjust spacing during compatible installations.
  • Long profile: Each GL-H8 shim measures 1-1/2 inches wide by 7-3/4 inches long.
  • Plastic construction: Black plastic shims for window, door, cabinet and construction alignment tasks.
  • Made in the USA: Glazelock® GL-H8 tapered wedge shims.

Size and design

Model GL-H8 has a tapered wedge profile measuring 1-1/2 × 7-3/4 inches. The taper lets you adjust spacing by changing the shim’s position.

Where to use it

Use for compatible window and door installation, cabinet alignment and general construction leveling. Make small positioning adjustments as you check the installation’s alignment.

Before ordering

Confirm that the dimensions and tapered profile suit your project. This model is a wedge shim, not a slotted horseshoe or flat plate shim.

Material and origin

Black plastic. Made in the USA.

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

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FAQs

What are Glazelock tapered wedge shims used for? +
Glazelock GL-H8 tapered wedge shims are used for leveling windows, doors, cabinets, and frames where a wedge profile is needed to fill angled gaps. The tapered design allows precise adjustment by sliding the shim in or out.
What size is the GL-H8 tapered wedge shim? +
The GL-H8 measures 1-1/2" x 7-3/4" in black plastic — a professional-grade tapered shim for window and door installation.
Are Glazelock tapered shims Made in USA? +
Yes. Glazelock GL-H8 tapered wedge shims are Made in the USA.
What makes tapered shims different from horseshoe shims? +
Tapered wedge shims slide into gaps at an angle to fill irregular spaces, while horseshoe shims stack flat for precise thickness control. Tapered shims are ideal for shimming door frames and window rough openings where gaps aren't perfectly parallel.

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