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Crawl Space Support Posts Around Murfreesboro, Explained
Crawl space support posts are adjustable steel columns placed under girders to carry floor loads down to a footing. They are often added where original wood posts or stacked blocks have failed, or where spans were too long from the start.
Because they are adjustable, these posts can be tightened over time as the framing settles into its new position, which makes them well suited to gradual floor correction.
When Added Supports Help
- A floor that bounces when someone walks across the room
- Stacked blocks or wood posts that have shifted, cracked, or decayed
- A visible sag in a girder between existing supports
- Heavy items such as a piano, aquarium, or bookcases causing a dip
- Kitchen or bath remodels that added weight above the crawl space
What a Proper Support Includes
A post is only as good as what it sits on. Each support is set on a footing or pad sized for the load and the soil, rather than on loose dirt or a single block. The post is then adjusted snugly to the girder and secured.
Spacing is planned from the girder size and the floor load, so the new supports share the weight evenly with existing ones.
Installing Support Posts
- 01
Plan locations
Girder spans and sag points determine where posts go.
- 02
Prepare footings
Ground is excavated and a suitable pad is placed at each location.
- 03
Set the posts
Posts are positioned, plumbed, and adjusted against the girder.
- 04
Final adjustment
Floors are checked from above and posts are fine tuned.
Posts Versus Bigger Framing Repairs
Support posts solve span and support problems. They do not fix girders or joists that have rotted or cracked. When framing itself is damaged, posts are paired with beam and joist replacement.
Adjustable posts can be checked again after a season or two, which gives you an easy way to keep the floor where you want it.