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Crawl Space Support Posts

Your sagging crawl space may be unsightly, but it can also cause permanent damage to your floors. Here’s how you can fix it.


If the floor above your crawl space seems to be uneven and unstable, you could be suffering from a lack of appropriate support. Reinforcing your crawl space with durable support posts can make all the difference. Proper support will even out your floor, remove the irritating creaks and groans that poorly supported floors can make, and reduce the strain placed on your walls. Of course, it’s important to know what the signs of a sagging or poorly supported crawl space are.

Signs That Your Crawl Space Needs Support 

Your crawl space is important to the overall health of your home, so it is essential that you understand what sagging or structural degradation in your crawl space looks like (as well as what can cause it). The warning signs of a damaged or poorly supported crawl space include: 

  • Uneven door or window frames (non-parallel to the floor) 
  • Cracks in interior drywall 
  • Sagging, bouncy, or uneven floors 
  • A musty smell 
  • Moist or rotting wood 
  • Tilting or sinking crawl space supports 

If you notice one or more of these signs, you could have a problem with the level of support in your crawl space. As such, you should contact a local professional to assess and repair the issues at play. A reputable expert will be able to suggest a tailored solution for your property that deals with all contributing factors as well as addressing cosmetic damage in your home. 

Our Crawl Space Support Solutions 

There are a number of ways in which you can bolster and support a sagging crawl space, but Foundation Recovery Systems recommends the use of the IntelliJack™ crawl space support system. This system has been designed to be an effective, easy, and permanent solution for poorly supported crawl spaces. 

What is the IntelliJack™ System? 

The IntelliJack™ system is a foundation repair product that is designed to offer a permanent solution to a poorly supported or sagging crawl space. By providing reliable extra support to sagging joists or floors, the IntelliJack™ System prevents the sagging or collapse of your floorboards. It also relieves the stress that a poorly supported crawl space can put on your walls. 

The Benefits of the IntelliJack™ System 

The most obvious benefit of choosing the IntelliJack™ Support System is the repair of your sagging floors and crawl space, but there are other systems that can do this. There are benefits, however, that are unique to the IntelliJack™ System. First and foremost, this system is compatible with many crawl space encapsulation systems and tools. This means you can undertake waterproofing measures without disrupting your newly placed supports. 

More than this, however, the IntelliJack™ System is: 

  • Engineered to safely transfer weight to stable soil 
  • Engineered so each support jack has an allowable load capacity of more than 24,000 pounds 
  • Entirely customizable 
  • Made with galvanized steel 
  • Water and corrosion resistant 
  • Adjustable 
  • Permanent 

This is a durable and reliable system. The long-term warranties cover you in the event that something does go wrong, but the IntelliJack™ System was designed to be installed and simply left alone. Unless something major happens to shift your home, such as an earthquake, you should never need to think about your crawl space supports again. 

Crawl Space Support Posts


If the floors in your home are sagging, uneven, or they feel bouncy, you could have a problem with the supports in your crawl space. The most common issues with crawl space supports and joists are: 

  • Dampness, Rot, and Pests 

If dampness gets into wooden supports and joists in your crawl space, you will soon notice sagging in your floor. This is because damp wood loses some of its structural integrity and begins to rot. What’s worse, as this support fails, it will put more strain on other supports and your floor, leading to deeper issues within your property. Furthermore, rotting wooden supports in your property are sure to attract pests like cockroaches, mold mites, and even mice. 

Wooden supports in particular are vulnerable to pests like termites. These tiny critters can cause havoc in your home if you don’t catch them quickly. While most pests rarely cause serious damage to the structure of a property there are some notable exceptions. Termites, of course, are a perfect example of this because of the damage they can do to wood, but there are others. Other pests can do damage to your home, of course, but they present a much more pressing danger to your health and well-being. 

Cockroaches, for example, leave droppings everywhere, and this can lead to airborne particles that cause respiratory issues and skin infections. 

  • Structural Damage 

Structural damage can come in a number of forms when it comes to sagging floors. Sinking columns are just one example, but they are one of the most common. If the soil in your crawl space is not strong enough to hold your support columns and withstand the weight being transferred from your home, they will begin to settle or sink into the ground. The most obvious sign that this is the problem is a space between the supporting column and the girder it supports. 

A column will generally stop sinking once it finds firm ground, but by this point, the girder above will often have begun to sag. As such, sinking columns have pretty much the same effect on your floors as wider foundation problems like settlement, though they are far easier to address than larger foundation problems.

The IntelliJack™ System is one of the most effective, accessible, and adaptable solutions. Made of high-quality steel and easy to adjust to the specific needs of your crawl space, the IntelliJack™ System has been revolutionary. 

The main benefits of this system are: 

  • Durability and Versatility 

The high-quality steel used to make these jacks means they are unlikely to ever need replacing once they have been installed. The coated steel is water-resistant, unlikely to corrode over time, and incredibly strong, making these crawl space jacks a permanent solution for your sagging floors. They are also far more versatile than other options. 

IntelliJacks™ can be tailored to suit the needs of your home and even adjusted when changes in your property demand it. This means you have a flexible, effective, long-term fix for your sagging floors. Unlike concrete or wooden columns and pillars, IntelliJacks™ are not susceptible to pests and dampness. 

  • Cost-Effectiveness 

This system is incredibly cost-effective and represents great value for money when compared to similar systems. This is in part due to the durability we have already mentioned, but it’s also about the ease of the installation process. IntelliJacks™ are minimally invasive and require very little in the way of equipment for their installation. 

As such, you could reinforce and stabilize your flooring for a fraction of the cost of removing and replacing concrete columns while also avoiding the stress, mess, and noise that traditional solutions would entail. In fact, if the damage is localized or your property is fairly small, the whole system could be installed and settled in a day or two.

The IntelliJack™ system is not available in hardware stores. As such, you will need to hire a professional contractor to supply and install this system. Of course, this is skilled structural repair work, so you really shouldn’t be attempting a DIY fix. This may be frustrating, but it has many benefits. 

  • Professionals Make it Quick 

Professionals who do this on a regular basis can make quick work of even the trickiest installations, so you save a lot of time and frustration by letting the experts deal with it. Better still, professionals will be far more likely to spot red flags as they undertake the installation. Signs of wider structural damage, pest infestation, or mold formation, for example, can be hard to see if you don’t know what you’re looking for. 

When you let a professional undertake this work for you, you save yourself time, minimize stress, and ensure that your property is getting the best possible solution. While it can be hard to justify the cost of professional repairs in this climate, you should consider how this investment could benefit you and your family in the long run. 

  • Guaranteed Results 

Professionals guarantee a certain standard of work, which is not something you can get from a DIY job. From the materials and products used to the process of installation and the provision of aftercare should anything go wrong, professionals are in a far better position to give your home what it needs. Our team is made up of highly skilled professionals who use special tools, for example; this is not a level of service an amateur, however skilled, can replicate.

Installing IntelliJack™ Supports 

Our certified engineers will do their very best to ensure the assessment of your crawl space and the installation of your IntelliJack™ System is quick, efficient, and minimally disruptive to your household. The average installation takes a day and will consist of four steps. 


First and foremost, our team will excavate a two-foot cube of soil at each IntelliJack™ placement site. The placement will be decided based on the needs of your home and will be worked out before excavation begins. 

Soil Preparation 

The excavated holes will be filled with either concrete or engineered fill in order to provide a stable and strong footing for each jack. This is generally the lengthiest part of the process because of the time it takes for these blocks to dry sufficiently. 

Base Placement 

The custom-engineered base for each IntelliJack™ will be put in place to ensure the load will be distributed evenly and properly once the jacks are fitted. 

Column Installation 

Once the bases are firmly in place, high-strength, galvanized steel columns will be cut to the required height and assembled. They will be connected to the support beam and tightened to ensure they properly support the beam and floor joists. If your floors have already begun to sag, the IntelliJack™ System will be used to help lift them back into place. 

We recommend that you consult a professional to ensure the jacks are placed in the best locations. The goal is to provide adequate support throughout your crawl space; if you try to tackle a project like this on your own and leave too much space between jacks, you could face issues in the future. It’s also much harder to move jacks once they are installed because of the concrete blocks that are placed to provide support. 

Foundation Recovery Systems is Here for You 

If you have any concerns about your foundation, crawl space, or the structural integrity of your home, please don’t hesitate to contact Foundation Recovery Systems. We offer free inspection appointments and our team is dedicated to offering the best possible service throughout Kansas City, Springfield, St. Louis, Des Moines and Moberly. We employ a customer-centered approach, transparent billing, and we offer flexible financing options on all work.

When you hire professionals, you can kick back and relax, safe in the knowledge that you are guaranteed a solution that actually works. If you have any questions, you know you are getting answers from someone who has the experience and training to consider all the options, and should more problems be uncovered during installation, you will find that professionals are able to adapt quickly!

FRS Service Area Map with Des Moines

Our Service Areas

Des Moines Location

2401 SE Creekview Dr.
Ankeny, IA 50021

Kansas City Location

211 SE State Route 150
Lee's Summit, MO 64082
(816) 774-1539

Moberly Location

1401 US-24
Moberly, MO 65270
(660) 202-8662

Springfield Location
1820 N Barnes Ave
Springfield, MO 65803
(417) 612-8286
St. Louis Location

1625 Larkin Williams rd.
Fenton, MO 63026
(314) 207-9995