You have many choices for steel building frames.

As you determine the proper selection for supporting whatever kind of metal building you have in mind, consider the question of what is the right application for the chosen structure's dimension. For example:

Most bigger steel buildings that can include interior columns without jeopardizing floor lay-outs, and are not planned for any future expansion, can have a multi-span rigid frame system applied due to its overall cost savings. Next choice - if interior load-bearing columns are not desired - is a single-span rigid frame with a clear-span feature.

If the unit is smaller, steel building prices are cheaper when choosing a tapered beam option or the use of a wing unit.

The industry trend seems to have the selection of clear-span systems as a priority for most steel building purchasers, as the flexibility of the floor plans is inherent in the scheme. The cost of this system must be thought out carefully. The search for the best metal building prices on large structures with wide expanses of clear-span area limits the steel building manufacturer pool that's able to accommodate the design and production of these bigger units.

The steel building purchaser, in coordinating with a designer or architect, needs to make a decision on what type of column will provide the best match to the framing system chosen and for the building's intended function. This would involve the choice of either tapered, straight, or another type of column application. Straight columns tend to be more costly.

Finally, the proper selection of endwall framing needs to be decided upon. Designs for this frame portion do not tend to vary by much. The load resistance to this area of the commercial metal building and supporting of wall girts is the endwall's responsibility. Selection should insure that the columns in the endwalls are of single or double cold-formed channels and with a steel thickness of a minimum of 14 gauge.