A crawl-space support post is only one part of a support system. The beam above it, the connection, the bearing below and the surrounding construction all matter. Adding a post where the floor feels low is not a complete repair plan.
Ask the inspector to connect each proposed support location with a documented finding in the floor system. The explanation should make sense on a simple sketch of the affected rooms and crawl space.
Trace the load path
Request identification of the member supported above, the proposed post and what supports it below. Ask whether the existing beam and bearing area are suitable or need additional work.
ASCE’s regional foundation guidance treats added supports and framing repairs as distinct measures. Its discussion does not supply universal post spacing or footing dimensions for Oklahoma homes. ASCE Texas Section: Residential Foundation Guidelines (2022; regional technical guidance)
| Component | Inspection question | Record to request |
|---|---|---|
| Floor above | What symptom relates to this location? | Room and measurement sketch |
| Beam | What condition and loading apply? | Photographs and assessment |
| Connection | How is bearing and attachment provided? | Specified detail |
| Post | What system is proposed? | Product and design information |
| Footing or bearing | What supports the post? | Design basis and installation record |
| Surrounding moisture | Is durability affected? | Water-control scope |
Distinguish an adjustment from a new support
Ask whether the work adjusts an existing support, replaces a damaged member or adds a new load path. These are different interventions and should not be described with the same vague phrase floor leveling.
If an adjustable product is proposed, ask whether the intended installation is permanent and which documentation governs it. Do not treat a temporary construction jack as equivalent to a designed permanent support.
Investigate the beam and wood condition
A new post does not answer whether the beam above it has adequate remaining condition. Ask how visible damage was assessed and whether concealed areas need further investigation.
USDA’s Wood Handbook distinguishes decay from staining and discusses strength effects. Appearance and a dry reading alone should not be used as a complete capacity assessment. USDA Forest Products Laboratory: Wood Handbook, Biodeterioration of Wood (2021)
If moisture or pests are involved, clarify which specialist handles that work and how it coordinates with support repair. Keep the affected locations consistent across proposals.
Discuss adjustment limits
Ask whether the plan includes lifting and what result is intended upstairs. Discuss finishes, plumbing and other connected elements before work begins. Request the monitoring and stopping responsibilities.
Avoid a promise that a small number of posts will make every room perfectly level. The objective should identify the area and condition being addressed and any finish work that remains separate.
Specify access and documentation
The quote should include access, necessary excavation or preparation, installation, restoration and cleanup. Ask who handles design and applicable local review. Define how concealed conditions will be documented and approved.
Request photographs of bearing and connection details before access becomes difficult. At completion, keep actual post locations and any inspection records with the warranty. A future evaluator should be able to identify the installed system.
Plan follow-up
Ask what observations matter after the work: the original floor complaint, a visible gap, or other documented condition. Keep records from the same locations. Do not make unplanned adjustments to a permanent system without the responsible provider’s guidance.
If the floor changes again, provide the history and installation documents rather than ordering another post immediately. The cause may require reassessment rather than repetition of the original scope.
Frequently Asked Questions
Can a post stand on any existing concrete?
Do not assume the visible surface provides suitable support. The design should identify the bearing condition and requirements.
Are more posts always better?
A support layout should be justified by the structure and loads. Quantity alone does not establish a sound repair.
Can I adjust a post until the floor looks level?
Do not use visual appearance as a jacking plan. Obtain qualified direction for structural adjustments.
Related Services
Visit pier and beam repair or crawl space repair.
Research Sources
Sources reviewed September 6, 2026. Inspection and quote questions are an editorial checklist; actual repair requirements depend on the property.