All About size lvl to span 28 feet

All About size lvl to span 28 feet

When it comes to construction and building projects, the size and span capacity of materials are crucial factors to consider. In particular, for projects that require long, horizontal support, such as bridges, roofs, and floors, the use of proper sized materials is essential for structural integrity and safety. One commonly used material for these types of projects is size lvl (laminated veneer lumber). In this article, we will dive into everything you need to know about size lvl to span 28 feet, including its properties, benefits, and usage in various construction projects.

What size lvl to span 28 feet

What size lvl to span 28 feet

As a civil engineer, I have encountered numerous projects where the structural support system needs to span a significant distance. One common question that arises in such projects is, “What size LVL (Laminated Veneer Lumber) should be used to span 28 feet?” In this article, I will provide an overview of the factors that are considered when determining the appropriate LVL size for a 28-foot span.

First, it is important to understand what LVL is and how it differs from traditional lumber. LVL is a man-made engineered wood product made by bonding thin layers of wood veneers together with adhesives. This process creates a strong, stable, and lightweight material that can span long distances without the need for intermediate supports. Unlike traditional lumber, which is cut from larger trees and can have variations in strength and quality, LVL is precisely manufactured to meet certain performance criteria.

When determining the appropriate size of LVL for a 28-foot span, the most critical factor to consider is the load that the beam will be supporting. The load can come from a variety of sources, such as the weight of the structure above, live loads such as people, furniture, and snow, and dynamic loads such as wind and earthquakes. Each of these loads will exert a different amount of force on the beam, and this must be carefully calculated to ensure that the LVL can withstand them without failing.

Additionally, the distance between support points and the type of support will also impact the choice of LVL size. For a 28-foot span, it is likely that the beam will be supported on both ends, which is known as a simply supported beam. The type of support used can also impact the beam size. For instance, using a column or wall as a support may allow for a smaller beam size compared to using only wood framing.

Another crucial factor to consider when choosing the LVL size is the required deflection limit. Deflection refers to the bending or flexing of a beam under load. Different types of structures may have different deflection limits, and this must be factored in when selecting the appropriate LVL size. For instance, a floor system may require less deflection than a roof system.

Finally, the type and grade of the LVL will also influence the size needed for a 28-foot span. LVLs come in various grades, and each grade is designed to support different levels of load. The higher the grade, the stronger the LVL will be, and therefore, a smaller size may be needed to achieve the desired strength for a particular span.

In conclusion, there is no one-size-fits-all answer to the question of what size LVL should be used to span 28 feet. Several factors, such as the loads, support type, deflection limits, and type of LVL, must be carefully evaluated to determine the appropriate size for a specific project. It is essential to work with a qualified structural engineer to calculate and select the most optimal LVL size to ensure the safety and stability of the structure.

What size lvl beam do i need to span 28 feet

What size lvl beam do i need to span 28 feet

In construction, LVL (laminated veneer lumber) is a popular choice for supporting beams due to its strength and durability. When deciding on the size of an LVL beam to span a distance of 28 feet, several factors need to be taken into consideration.

1. Load Capacity: The first and foremost consideration for selecting the size of an LVL beam is its load capacity. The beam must be able to support the weight of the structure, including the weight of the roof, walls, and any additional loads like furniture or appliances. The load capacity of LVL beams varies depending on the manufacturer and the specific grade and type of LVL.

2. Span Length: The longer the span of the beam, the larger it needs to be to support the weight without sagging. With a span of 28 feet, a larger LVL beam will be required compared to a shorter span.

3. Live and Dead Loads: In addition to the weight of the structure, there are two types of loads that must be considered – live loads and dead loads. Live loads refer to the weight of items that may move or change, such as people, furniture, and appliances. Dead loads are the weight of the permanent elements of the structure, such as the roof and walls. For a 28 feet span, a combination of both live and dead loads needs to be considered when selecting the LVL beam size.

4. Building Codes: Building codes specify the minimum requirements for structural elements, including the size and type of beams. These codes vary from state to state and must be followed to ensure the safety and stability of the structure.

5. Beam Material: LVL beams are available in various sizes and materials, such as pine, fir, or spruce. The type of material used will affect the strength and load capacity of the beam. The beam material must be selected based on the specific needs of the project.

Based on these factors, for a 28 feet span, an LVL beam size of at least 5 ¼ inches wide and 16 inches deep would be suitable for supporting a typical residential structure. However, it is essential to consult with a structural engineer or follow the recommendations of building codes to determine the exact size and type of LVL beam required for the specific project.

In conclusion, selecting the correct size of an LVL beam to span 28 feet is critical to ensure the structural integrity and safety of the building. It is recommended to consult with a professional structural engineer to determine the exact size and type of LVL beam needed for the specific project based on load requirements, span length, and building codes.


In conclusion, size lvl to span 28 feet is a crucial consideration when it comes to building construction. It requires careful planning and precise calculations to determine the right size lvl beam for a span of 28 feet. Laminated veneer lumber offers many benefits such as strength, versatility, and sustainability, making it a popular choice for this type of structural support. Whether it is for residential or commercial projects, understanding the importance of size lvl to span 28 feet is essential for a safe and structurally sound building. Remember to consult with a professional engineer or contractor to ensure the appropriate size lvl beam is selected for your specific project needs. With proper attention and care, size lvl to span 28 feet can help create durable and reliable structures for


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