Whether you’re dealing with structural issues in your home or planning for complex remodeling rework, lally columns can become very handy. These are adjustable steel columns that can support considerable structural weight temporarily. You can fix the foundation problems or deal with major wall makeovers much more conveniently. In some cases, lally columns can also be used permanently to fix structural problems.
The most common lally column style is a steel column filled with concrete but there are many types available to suit the project’s needs. Adjustable steel columns work great for holding the weight of an unsupported joist or beam. Temporary lally columns are typically used when removing a wall to handle the weight of the floor above. Permanent ones are practical for crawlspaces or basements.
Installing an Adjustable Steel Column
1. Take measurements
Considering that each type of lally column has an adjustable range, it’s important to take proper measurements of the space to figure out the right level of support needed. Even when using a lally column with generous adjustability features, it’s still important to keep the elevation of the screw portion to a minimum.
2. Mount the upper plate
The metal plate of the column needs to be mounted to the underside of the LVL beam. You need to figure out the best location of the plate and then detach it to connect to the top of the lally column. The lally column has to be raised to the bottom of the load-carrying beam.
3. Install the column into place
If you’re not sure how to place the adjustable steel column’s machine screw, the manufacturer’s instructions should specify. Some models require a top installation while others have the screw at the bottom. Keep raising the lally column into place until it’s tightly installed against the beam but without jacking it up.
Lally Column Safety Concerns
The incorrect installation of a lally column can have dangerous consequences. Leave the job to a professional if you don’t have the necessary expertise for the job. The huge structural weight can cause the lally column to shoot away rapidly when attached off level. It’s important to deal with the initial jacking-up operation before inserting the column.
Keep in mind that weight ratings assume perfect vertical installation. This is why it’s critical to ensure that a lally column is installed correctly to prevent it from shooting away and expose you to serious injury risk from the structural weight. Make use of a laser level to figure out whether the lally column is properly installed in a vertical position. Always make sure you install the column on a level surface.
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