Friday, January 16, 2009

FAQ - Foundations

Do I need a foundation for my building?

At the very least, you will need concrete piers for the columns to sit on. Most people pour a full slab, but if you are using the building on a farm or ranch and plan to have dirt, gravel, or sawdust floors a pier system may be preferable. In these situations, a popular option is to combine piers with a concrete footing around the perimeter of the building. With a pier system, you will need to select the "base girt" option (For additional information, see the base options section of this FAQ).

Do you provide the pier or foundation plan?
No, since your foundation or pier system needs to be designed for the soil conditions in your area, you need a local engineer to do your foundation plan. Along with your erection drawings, we supply an anchor bolt plan with reactions, which will provide the engineer the informatiion he needs about the building. You can often get a referral for a local engineer from your concrete supplier.

Can these buildings be put up without a concrete plan?
A foundation plan may not be required by you local code officials. In this case, a competent concrete supply company can use our anchor bolt setting plan and reactions to determine the needed PSI of your concrete. You must check with your local officials to see what is required.

Do you supply the anchor bolts for attaching the frame to the slab?
No. The common practice is to set the anchor bolts when the slab is poured, and most people want to have their slabs fully completed before the building arrives so they can begin erecting immediately. That is why people appreciate how quickly we deliver drawings (and anchor bolt plans). Our fast service allows people to start designing and constructing their slabs within days of placing their orders. Because our buildings themselves arrive so quickly (4-6 weeks), builders have very little if any down time between finishing the slab and beginning to erect the building.

What if I already have a foundation I want to use for the building?
Assuming that your foundation is adequate, there are several types of anchor bolts that can be installed in an existing slab. Your concrete engineer or supplier should be able to help you decide what options are best for your situation

What are the options for mounting the building to the concrete slab?
Our online design and pricing system has a BASE TRIM option under the ACCESSORIES tab, which offers a text description and graphical display of the steel to concrete connections. Our most popular connection type is the DELUXE BASE TRIM option. It allows you to pour a slab without forming a notch and serves very well in keeping out the critters. For an illustrated description of your choices, see the base options section.

What slab thickness do you recommend?
Slab thickness must be determined by a foundation engineer or your local officials. For ballpark estimating purposes, slabs in the southern half of the U.S.A. tend to be 4 inches while the thickness can exceed 8 inches in northern climates.

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