Lally columns provide foundational support for buildings of all sizes. These steel columns, typically filled with concrete, play a vital role in distributing weight and reinforcing structures. Whether you’re a homeowner thinking about renovations or simply curious about building techniques, understanding Lally columns can give you valuable insight into the backbone of many structures. In this comprehensive guide, we’ll explore the purpose, history, types, and applications of Lally columns, as well as installation methods and cost considerations.

*Cost data in this section sourced from HomeAdvisor

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Purpose of a Lally Column

Lally columns serve two primary functions in construction: load-bearing support and structural reinforcement. These versatile components are integral to maintaining the integrity and stability of buildings.

• Load-bearing support: Lally columns excel at supporting heavy loads, making them indispensable in construction projects. They effectively distribute the weight from upper floors, roofs, and beams to the foundation, making sure the structure remains stable. This load-bearing capacity allows for the creation of open floor plans and the removal of walls without compromising structural integrity.
• Structural reinforcement: Beyond their primary load-bearing function, Lally columns provide additional structural reinforcement to buildings. They can be strategically placed to strengthen weak points, support sagging beams, or reinforce areas prone to stress. This reinforcement is particularly valuable in older buildings or structures undergoing significant renovations.
• Other structural applications: In larger construction projects, such as building stadiums or bridges, Lally columns can provide the necessary support to bear massive loads and withstand environmental factors. Their adaptability to various construction needs makes them a popular choice across different building types.

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History of the Lally Column

John Lally was an American inventor and businessman living in Waltham, Massachusetts, who owned a construction company that began producing the Lally column. Lally recognized the need for a robust and fireproof column for mill construction. 

In 1898, Lally patented his design for a “fireproof column,” a structural column made of steel and filled with concrete. This invention, which came to be known as the Lally column, was a significant innovation in the construction field. It offered superior load-bearing capabilities, fire resistance, and durability compared to the common wooden columns of the day.

John Lally’s invention revolutionized the construction industry, and his name continues to be synonymous with these columns today. The Lally column replaced the classic column in many construction projects.

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Temporary vs. Permanent Lally Columns

Permanent and temporary Lally columns play pivotal roles in construction projects. While permanent columns secure enduring strength for years ahead, temporary columns facilitate structural alterations and renovations, providing adjustable, short-term support until permanent structural changes are complete.

Permanent Lally Columns

Temporary Lally Columns

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Lally Column vs. Jack Post

While Lally columns and jack posts serve similar purposes, they have distinct characteristics. Lally columns are typically permanent, concrete-filled steel tubes designed for long-term structural support. Jack posts, conversely, are adjustable steel columns often used for temporary support during construction or renovations.

Lally columns provide superior load-bearing capacity and are ideal for permanent installations. Jack posts offer flexibility in height adjustment and are better suited for temporary use or in situations where frequent adjustments may be necessary.

Material Durability

While both columns are useful in construction, the material and design differences inherently affect their durability. Lally columns, with their concrete and steel combination, often provide more lasting durability than the purely steel jack posts, offering long-term peace of mind for permanent structures.

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Adjustable vs. Nonadjustable Lally Columns

Adjustable Lally columns, called jack posts or telescopic columns, offer a versatile solution for supporting structures with varying floor-to-ceiling heights. These columns can be adjusted in length for a perfect fit. This is an advantage for construction or renovation projects that require temporary support.

One of the benefits of adjustable Lally columns is their ability to adapt to changing structural demands. These columns are ideal for extension projects that involve adding additional floors or for adjusting the height of existing spaces. They provide stability while accommodating any height alterations made throughout the construction process.

Contractors and builders typically use nonadjustable Lally columns in permanent installations where there is no demand for height adjustments over time.

Consider each column’s unique design and material composition for accurate weight ratings. A qualified professional, such as a structural engineer or architect, can help you determine the appropriate weight capacity for the columns.

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Cost To Install a Lally Column

The cost of installing a Lally column can vary significantly based on several factors. Understanding these factors can help you budget effectively for your project.

Factors Affecting Cost

Several elements influence the cost of Lally column installation:

• Any necessary structural modifications
• Column size and material
• Installation complexity
• Labor costs in your area

Additional variables might include unique customization for specific construction demands or unexpected repairs during installation. A clear understanding of these elements helps make sure your project’s cost remains within expected boundaries while maintaining high project standards.

Average Price Range

On average, homeowners can expect to pay around $2,500* per column, including materials and professional installation. However, costs can be higher for more complex projects or in areas with higher labor rates. Always obtain multiple quotes from reputable contractors to make sure you’re getting a fair price.

*Pricing data in this section was sourced from Angi.

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How To Install a Lally Column

Below, we break down the steps to install a Lally column. We recommend tackling this project with a professional installer rather than going the DIY route due to its critical role in supporting a building’s structural integrity.

Step 1: Determine the Location

Determine the location where the column is needed. This is typically where a load-bearing wall or beam needs additional support. Consult a structural engineer to ensure correct placement.

Step 2: Measure the Height

Measure the distance from the floor to the beam the Lally column will support. This will determine the length of the column. Account for any subfloor, flooring, or ceiling materials that may affect the measurement.

Step 3: Prepare the Column

Prepare the Lally column by cutting it to the measured length if it’s not adjustable. If it’s filled with concrete, ensure it’s cured fully before installation. Before installation, research how to frame walls for a basement room to create a solid base to install the column. 

Step 4: Position the Column

Place the column vertically in the determined location, ensuring it’s plumb (perfectly vertical). It should fit snugly between the floor and the beam. Framing out the crawl space or basement will help ensure the columns are plumb. 

Step 5: Secure the Column

Use appropriate fasteners to secure the top and bottom of the column to the beam and floor. This usually involves drilling holes and using bolts or screws. Follow the fastener manufacturer’s instructions for the best results.

Step 6: Check the Installation

Once the column is secured, double-check that it’s upright, square, and adequately supporting the beam. If there are any issues, you may need to make adjustments.

Step 7: Finalize the Installation

You can finalize the installation once everything is confirmed to be correct. Finalizing may involve adding additional fasteners or applying a protective finish to the column. Check local building codes to ensure compliance.

Installing a Lally column involves significant structural changes. We recommend consulting with a professional to ensure you have done the job correctly and safely.

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Safety Precautions for Lally Columns

An improperly installed Lally column can lead to serious structural issues and potential safety hazards. If the column isn’t perfectly vertical (plumb) or secured correctly, it can fail to support the intended load. This could result in sagging floors and cracking walls or, in extreme cases, structural failure of the building.

Follow the correct installation process and maintain high safety standards to avoid the risks of improper installation. This involves meticulous measurement, correct positioning, and secure column fastening. Construction professionals recommend that you employ the services of a qualified professional contractor or the guidance of a structural engineer. Regular inspections are essential to identify and rectify potential issues early on.

Maintenance and Inspection of Lally Columns

Regular maintenance and inspection of Lally columns help with the ongoing structural integrity of a building. Inspect columns periodically for signs of damage, corrosion, or shifting. Look for any cracks in the surrounding floor or ceiling, which could indicate movement or settling.

If you notice any issues, consult a structural engineer or professional contractor immediately. Prompt attention to potential problems can prevent more serious structural issues down the line.

Preventative Care

Preventative measures such as cleaning around the base and watching for initial signs of rust can extend the longevity of Lally columns. Adhering to a comprehensive maintenance schedule can effectively guard against large-scale damage and mitigate repair costs.

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Our Conclusion

We highly recommend the professional installation of Lally columns. Installation requires precise measurements, correct positioning, secure fastening, and technical knowledge and experience. An incorrectly installed column can lead to serious structural issues and safety hazards.

Entrusting this task to a professional ensures the work is performed accurately and complies with local building codes. Regular inspections by a professional can also identify potential issues early to maintain the safety and longevity of your building structure.

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FAQ About Lally Columns

Are Lally columns permanent?

Lally columns can be permanent or temporary structural elements. Permanent Lally columns are designed to provide long-term support to a structure and are usually removed or replaced only if they show signs of damage or degradation that could compromise the building’s structural integrity. Always consult with a professional for any modifications involving Lally columns.

Do Lally columns need to be filled with concrete?

Not all Lally columns need to be filled with concrete. Traditionally, contractors filled Lally columns with concrete to enhance its strength, but some structural engineers have redesigned the Lally column as hollow steel tubes that provide the necessary structural support. Whether or not a Lally column needs to be filled with concrete depends on the structure’s specific design and load requirements. 

Why are Lally columns often preferred in residential construction?

Construction professionals often prefer Lally columns in residential construction due to their strength, durability, and versatility. They provide superior load-bearing capabilities, making them ideal for supporting heavy structural elements in homes, such as beams and floor joists.

What is the advantage of using a Lally column?

The advantages of using a Lally column include:

• Strength and stability: Lally columns provide excellent load-bearing capabilities.
• Cost-effectiveness: While the up-front cost can be high, the long-term benefits of less maintenance and superior durability can make Lally columns a cost-effective choice.
• Durability: Lally columns are resistant to rot and pests, ensuring long-term durability.
• Ease of installation: Lally columns can be installed relatively quickly and easily, especially by professionals.
• Flexibility: Their slim profile allows for design flexibility.

What is the most common type of Lally column?

The most common type of Lally column is a steel column filled with concrete. Builders and designers use this column type widely due to its superior load-bearing capabilities. A steel shell provides strength, while the concrete filling adds weight and rigidity.

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