Constructing the foundation for your building depends on a number of factors, such as geographical location and intended application. The area should be level and clear of obstructions. The following outlines some foundation options:
Baseplate & Floor
Foundation baseplates provide excellent stability for your steel building. This foundation type features a concrete floor for your steel building into which you would bolt baseplates. Angle irons in place of the baseplate can also be used. Whichever method you choose, please consult with your steel building supplier and building department to ensure compliance with governing building codes and by-laws.
If you require additional sidewall height, you may look into this foundation option. By burying posts in the ground up to 5' apart, you provide your foundation with enough strength and stability to carry your steel building. Wood or steel beams are then attached to the top of the posts, onto which a baseplate is bolted. The building panels are affixed to the baseplate.
This foundation allows you to gain additional sidewall height while maintaining maximum stability for your metal building. Your concrete wall should be no less than 10" wide, onto which you will attach a steel baseplate. The building panels are bolted to the baseplate. Individuals who use this style of foundation often raise their steel buildings 2' to 6'.
This option uses a concrete trough design. Your steel building is placed into the trough. A concrete-grout mix is then used to fill in the trough. The grout can be finished to slope away from the steel at about a 20-degree angle to facilitate water drainage.
A Word on Building Permits
Should local by-laws require you to obtain a building permit before constructing your steel building, your steel building supplier should be able to help provide the documentation you may need to get one. Also, if you need engineer’s schematics or blueprints, your steel building supplier should be able to provide these to you.