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Adjustable Structural Supports Since 1951.

Common Floor Leveling Mistakes to Avoid: A Troubleshooting Guide



Common Floor Leveling Mistakes to Avoid:  A Troubleshooting Guide

Floor leveling is important to protect your investment and keep your family safe. The longevity of your property is vastly improved by using screw jacks for houses for foundation support, but there are a few common mistakes to avoid.

At Ellis Manufacturing, we’ve seen firsthand how improper techniques and overlooked details can escalate minor problems into significant structural issues. Troy Frost, Vice President of Sales, notes, "People often want to do things inexpensively, but inadequate solutions usually fail, causing frustration and additional costs."

In this guide, we'll highlight common floor leveling mistakes and offer expert advice on avoiding them, ensuring your project is safe, effective, and durable.

Mistakes During Diagnosis

Learning how to level a house begins with accurately diagnosing the problem.

"Often, improper support beams, moisture damage, or overloaded joists are at the core," says Brian Park, Director of Sales and Business Development. "Foundation issues can arise from moisture, soil drainage problems, or beams inadequately sized for their load."

Moisture is one of the most common concerns. Being able to get into your crawl space or basement is a great place to start figuring this out. Foundations do naturally settle, but your builder should have taken this into account and tested the soil composition.

Underlying foundation complications stem from:
  • Soil drainage
  • Poor construction
  • High humidity
  • Natural disasters
  • Leaking pipes
  • Grading issues
  • Overloaded joists
  • Undersized beams
Ellis Heavy Duty Steel Lifting Shore

You’ll know you have foundation issues if you see gaps between floorboards, between baseboards and flooring, or around window and door frames. Any cracks, vertical or horizontal, are a clear sign that you need house leveling.

Windows and doors that don’t shut properly anymore, or uneven flooring, are other indicators that you might want to start searching for house jacks for sale. The underlying concerns cannot be ignored, as the foundation will worsen over time.

A visual inspection is a great start. However, inaccurate assessments lead to ineffective solutions and create larger issues. If you are uncertain, we recommend consulting structural engineers; professional guidance typically costs less than $1,000 but saves significantly long-term.

Mistakes During Jack Selection and Installation

Once you’ve diagnosed the problem and identified what beams may be overloaded or where you need floor joist support, it’s time to select house jacks.

How to select the right floor jack for house leveling?

Choosing the Wrong Jack

When selecting a floor jack for house leveling, three factors should be considered:
  1. How much weight will the joist jack need to support? Steel shores are not made equally. Catastrophic events could happen if you don’t select foundation supports with the proper load-bearing and lifting capacity.
  2. Can the support jack be used as a permanent solution? This is important because you’ll want to be able to lock and unlock the jack for future adjustments or relocation.
  3. Are you adding support or do you need to lift and raise the level of the beams? A house jack with thrust bearings and a top plate that swivels independently from the screw are two necessary components to look for.

Improper Placement

If you are unsure about placement, consult a professional. Improper placement damages joists and causes instability in your home. Identify where the foundation is weak or unstable. You want shore posts spaced evenly (ie, every 5 feet) and directly under the beam. Closer spacing might be needed, especially for heavy loads or soft soil.

Brian advises, "Spacing and placement accuracy ensure stability; incorrect spacing undermines the entire effort."

Incorrect Installation Techniques

A home floor jack must have a proper footing to adequately support your joists. Without one, the jack will sink into the ground, defeating its purpose.

Here are a few options for creating a stable footing:
  • Gravel Footing: Dig a 2' x 2' x 2' hole and pack it with gravel. Then, place a base plate extension with the foundation jack sitting on top.
  • Concrete Footing: Alternatively, you could dig the same 2' x 2' x 2' hole and pour concrete into it to create a solid base.
  • Surface Gravel Footing (for lighter loads): In some cases, especially for lighter loads, you might be able to skip digging a deep hole and simply place the base plate extension on top of a small amount of compacted gravel.

Ensure the steel shores remain vertical to maintain structural integrity. "Attach the jacks securely to the beams; they must be integrated, not merely placed beneath," warns Troy.

Foundation Leveling Jack Selection Criteria

Other common installation errors are:

  • Incorrect capacity: be sure to check both the load capacity and the lifting capacity, as these dramatically affect your foundation leveling project.
  • Limited range of adjustments: because of low-quality hardware shores, often their adjustment range is too small for the project in question.
  • Temporary-only: if using a foundation jack that cannot be locked or is meant only for temporary shoring, you put your home at risk.

Troubleshooting Common Problems

Jack Malfunctions

Difficulty turning a jack is a very common problem. Ensure ease of use by buying one that has thrust bearings and can be adjusted using a turning bar instead of just a wrench. Poorly designed foundation jacks result in slipping or backlash. Purchase from a reputable company that uses high-quality materials.

"Our jacks are engineered for ease of adjustment and reliability, eliminating common issues seen with inferior products," explains Brian.

Troubleshooting Floor Leveling Issues

Uneven Leveling

If you’ve found that your property still has uneven leveling after installing house jacks, you’ll want to address it right away. To avoid this, never lift quickly or too much. Small increments and time will show you how much the foundation leveling affects your home.

Structural Issues

During leveling, you may find that there are bigger structural issues. If more cracking or unevenness appears, consult a structural engineer. Sometimes it isn’t immediately clear, but any deeper issues reveal themselves when you start leveling the house.

"Early intervention is always better. Deeper issues become apparent during initial adjustments," advises Troy.

Preventing Future Problems

Make a schedule and put it in your calendar to do regular inspections of your floor leveling. This provides a baseline, and you’ll be able to tell when things shift or change. Identifying problems early lessens long-term damage and costs to your investment.

To maintain the lifespan of your crawl space jack, some maintenance is required. Be sure to consult with the manufacturer, as regular cleaning may be necessary. Specifically for our screw jacks at Ellis, lubrication is typically only needed if you plan to adjust the jack again after it has been in a static position for a period of time.

Floor Leveling Experts

Remember that many mistakes can be avoided when learning how to level a house. Not all house jacks are created equal, and we believe in full transparency and customer support to avoid costly and dangerous consequences.

Since 1951, Ellis Manufacturing has been building, testing, and consulting with DIY homeowners and contractors to ensure the highest-quality product. Our patented thrust bearings make adjustments 10x easier, and our team enjoys consulting with our customers on their leveling projects.

Call us and we’ll troubleshoot together. We look forward to talking with you about your foundation repair project. Let us help ensure your home remains safe and stable for generations to come.

Disclaimer: The information provided in these articles is for general informational purposes only and is not intended as a substitute for professional engineering advice. Every project has unique requirements and complexities. Therefore, it is essential to consult with a qualified professional engineer to guide you through the specific nuances of your individual project and ensure its safety and compliance. These articles do not offer engineering guidance.

 






About Brent

Brent joined Ellis Manufacturing Co. right out of college in 1973, learning the business from the shop floor up. With over 50 years dedicated to improving product quality and manufacturing efficiency, he's proud to now lead the company alongside his children, a testament to their shared commitment and innovation.

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