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Anchors: Different styles and when to use them

By Carport Charlie   |   Posted In: Installation

Carport buyers often wonder how these sturdy structures will stay attached to the ground during high winds or storms. If a carport or other metal building is not anchored soundly to the ground, the strength and stability of the custom metal building are at risk. Rather than risk having your brand new custom metal carport or metal building fall over in high winds, anchor it with the appropriate anchors for your foundation. Carport Central focuses on bringing you permanent structures that require an anchoring system to keep them standing strong throughout the years.

Different anchors are used to keep the custom metal structures attached to the ground through all sorts of weather. The type of anchor you use depends on the type of surface you prepare for your carport or other custom metal building. Take a look below to learn more about the different types of anchors and when you should use each type.

Types of Anchors

Rebar Anchor
Rebar Anchor

Rebar anchors are made of steel. Rebar is commonly used to reinforce concrete or cement structures. Carport Central offers rebar anchors that are 1/2’” x 32”, which are used to provide strength and stability to custom metal structures. During installation, a hole is drilled into the base rail and secured into the ground. Here at Carport Central, we use rebar anchors for custom carports in areas of low winds and sturdy soil. If you plan to level soil for your carport, but live in areas of high winds, it is better to get a stronger anchor like the next type of anchor on our list.

Mobile Home Anchor
Mobile Home Anchor

Mobile home anchors, or auger anchors, are used to keep structures secure to dirt or soil foundations. When installing a custom built carport, you don’t need to have a foundation poured, but you do need a level installation site. The auger style helps the anchor stay secure to the ground and prevents the custom carport from moving.

If you plan on certifying your building and want to secure it to the ground, mobile home anchors are your only option. These anchors are used in all certified ground installations. With certified structures, the installation team will install one anchor every 25’. The same can be done for non-certified structures, and Carport Central recommends the mobile home anchor to customers securing their custom carport to the soil.

Make sure to tell our customer service representatives that you wish to anchor your carport or custom metal building to the soil. You will need to level the area and the installation team will come out and use the appropriate tools to measure and drive the anchors into the soil. Mobile home anchors are best for this task, as the auger helps to keep them secure to the ground.

Concrete Anchor

Concrete is a sturdy substance; Carport Central will use anchors that will adhere your structure to this solid surface. The installation team will use a masonry drill bit to drill holes in the concrete. Unlike working with asphalt, while working with concrete it is better to use concrete expansion anchors. While the base rails are in place, the team will mark the location of the center hole and drill about 3”- 4” into the concrete. Once the hole is drilled, they will place a concrete expansion anchor inside the hole, tighten the nut, and secure the base rail. Additional steps are taken to secure the structure and prevent any movement from high wind or other severe weather.

At Carport Central we use concrete wedge anchors for installation on concrete slabs. We also offer different length anchors depending on the dimensions of the foundation poured for your new custom metal carport. For example, if you have concrete slab 4” thick with no footer, we will use anchors 5 ½” long rather than the 8” long wedge anchors for concrete slabs deeper than 4”.

Some advantages of anchoring your carport or metal structure to concrete include the stability of a solid surface and the strength provided by concrete over asphalt. Remember, asphalt may break apart if you use the wrong anchor so be sure to let your Carport Central customer service representative know what type of base you intend to pour.

Asphalt Anchor
Concrete Anchor

Asphalt anchors are built to hold fast to asphalt. You will notice when you mix the asphalt to pour, the material is made of many tiny bits of material like small stones, sand, and gravel. As the material is likely to fracture if direct pressure is applied as it is in expansion anchors, the asphalt anchors either have a screw-like thread or have barbs on the shaft to keep the anchor secure. This anchor should only be used on asphalt surfaces, as it is not effective as an anchor in concrete or soil installation.

If you plan to use asphalt anchors on your freshly poured asphalt slab, be sure to let the Carport Central customer service representatives know. The installation team will bring with them asphalt anchors to secure your carport or custom metal building. Again, we do not recommend using expansion anchors on asphalt, as the pressure anchors push against the asphalt, and the pressure could cause the asphalt to crack and split. Make sure to let our customer service representatives know if you plan to pour and level an asphalt slab for your new carport or metal structure.

If you live in an area of heavy rains, we suggest you look into pouring either a concrete or an asphalt foundation. Depending on the quality of construction for your building, it can start to sway or rock with high winds. To protect your steel carports from wind, a secure anchoring system is a must. You should also keep in mind that every ground, no matter how dense, can be susceptible to soil degradation and erosion. The anchors are strong and will withstand heavy winds, but every yard is susceptible to erosion from heavy rain. Wind can wreak havoc on steel carports that have weak construction and are not securely fastened to the ground. The type of anchor you use depends on the kind of surface you intend to place the steel carport or steel building on.

Talk to our customer service representatives to learn more about the best foundation type and anchors for your needs.

Carport Central has over 30 years of experience in the industry. Let our customer service representatives help you find the right carport at a price that fits your budget. Call us now at (980) 321-9898 for a free quote on the perfect custom metal building for your needs.


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