Paragon Concrete Shims: Precast for Leveling, 4 x 6 x 1/4in (90/Bx)

Concrete Shims: Precast for Leveling Concrete Units (4 x 6 x 1/4 in, 90/Box)

Overview

Precast concrete shims are indispensable tools for ensuring precise leveling and alignment of precast concrete units and other structural elements during construction. These small but mighty components are engineered to correct inconsistencies in foundations, fill gaps, and guarantee the accurate placement of heavy concrete panels and structural components. Their compact size (4 x 6 x 1/4 inches) makes them easy to handle and ideal for making fine, critical adjustments on any job site.

Why Choose Precast Concrete Shims?

In construction, stability and longevity are non-negotiable. While materials like wood or plastic have traditionally been used for shimming, they come with significant drawbacks.

• Superior to Wood: Unlike wood shims, which can compress under load, absorb moisture, rot, or attract pests, precast concrete shims are impervious to these issues. They will not degrade, shrink, or expand over time, ensuring a permanent and stable solution.
• Stronger than Plastic: While plastic shims resist moisture, they can crack or deform under heavy loads or in extreme temperatures. Our high-impact polystyrene shims are specifically engineered to support immense weight and maintain their structural integrity under pressure.

Common Applications

Precast shims are versatile and crucial in a wide range of applications, including:

• Leveling Precast Concrete Panels: Ensuring wall panels and other precast units are perfectly aligned.
• Structural Steel Alignment: Placing shims between steel beams and concrete foundations for precise height adjustment.
• Machinery and Equipment Installation: Leveling heavy industrial equipment and base plates for optimal performance and safety.
• Window and Door Frame Installation: Squaring and leveling frames in both commercial and residential construction.
• Tilt-Up Construction: Aligning large concrete wall panels as they are lifted into place.

For applications requiring extra stability, a construction-grade adhesive can be applied to bond the shim securely in place.

Key Features

• Robust Construction: Made from high-impact polystyrene for maximum durability.
• High Load Capacity: Engineered with a 5,000–6,000 PSI compressive strength to handle extreme loads without failure.
• Non-Corrosive: Will not rust, stain, or leach, making them ideal for use with all construction materials.
• Precision Thickness: Manufactured to a consistent thickness for reliable and accurate leveling.
• Long-Term Reliability: Designed for permanent installation and long-term structural support.

These features make our precast shims the go-to choice for professional contractors, engineers, and DIY enthusiasts who demand precision and reliability.

Product Specifications

• Dimensions: 4 x 6 x 1/4 inches
• Quantity: 90 shims per box
• Material: High-impact polystyrene

This specific size is perfectly suited for leveling foundations, aligning precast units, and spacing concrete assemblies.

Installation Guide

Installing precast shims is a straightforward process:

1. Assess the Gap: Determine the required thickness and number of shims needed to level the surface.
2. Prepare the Surface: Ensure the surfaces are clean and free of debris.
3. Position the Shim: Place the shim(s) on the foundation or between the surfaces requiring alignment. Stack shims if a greater thickness is needed.
4. Check for Level: Use a laser level or spirit level to verify accuracy. Adjust as necessary.
5. Secure (Optional): If required, apply a suitable construction adhesive to permanently fix the shims in place.

Benefits of Using Our Precast Shims

• Exceptional Load-Bearing Capacity: Safely supports heavy structural elements.
• Environmental Resistance: Unaffected by moisture, rot, insects, and corrosion.
• Time-Saving Installation: Simple to place and adjust, speeding up the construction workflow.
• Permanent Solution: Reduces the need for costly future adjustments and repairs.
• Consistent Performance: Delivers reliable results every time, ensuring project integrity.

How to Choose the Right Shim

Selecting the correct shim is crucial for project success. Consider the following:

• Load Requirements: Ensure the shim's compressive strength exceeds the anticipated load.
• Gap Thickness: Choose a shim size that matches the gap you need to fill. Shims can be stacked for custom heights.
• Material Compatibility: Our polystyrene shims are compatible with concrete, steel, and other common construction materials.

Explore Our Full Range of Concrete Accessories

Certified MTP is your one-stop shop for construction solutions. We offer a complete selection of shims, including horseshoe shims, aluminum shims, and multi-purpose leveling shims.

To support your concrete projects from start to finish, browse our inventory of tremie pipes and hoppers for controlled concrete placement and rebar chairs for reinforcing strong, durable structures.

Maintenance and Storage

Our precast shims are designed to be maintenance-free once installed. For unused shims, store the box in a dry, protected area to keep them clean and ready for your next project. When installed correctly, they provide unparalleled, long-term support for all your concrete and structural applications.