Skinny, light-duty jack posts are available at many hardware stores and home centers. This type of adjustable steel post is often installed on top of a concrete block that rests on the ground in the crawl space. Unfortunately, these posts hold very little weight, have poor stability and are difficult to adjust. Also, they won’t compensate for poor supporting soils in the crawl space. This is not the solution you need!
Light-Duty Jack Post
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