Clear span frames, modular frames and single slope frame structures are the three main steel building frame types for metal buildings. A clear span frame will offer strength and economy. No interior supports will be necessary. This option works best for vast areas of much needed space.

Warehouses, agricultural structures and factories are just a number of the structure types that work best with a clear span frame. This frame has limitations regarding size. The frames become larger and much heavier if greater loads are carried across the length of the frame.

These structures are extremely effective for big structures that are 150 feet or wider. Clear span frames are the most often used for buildings where unencumbered interior space is needed. The most common uses include ice arenas, sport centers, aircraft hangars, various arenas, manufacturing facilities, offices and warehouses. Having no interior columns allows the space to house necessary material and heavy machinery, including crane systems.

Modular frames require interior columns that are used to evenly distribute the load. This reduces the cost of the frame and even the foundation of structures that are rather wide. When a structure is about 100 feet wide or wider, the economical advantages are quite obvious. Nearly all structures that are 100 feet wide or wider have interior support columns. These designs are regularly used for larger factories and warehouses.

Modular buildings and modular homes consist of numerous sections that are made in a manufacturing facility prior to being delivered to the construction site. The modules are put together into a single structure using either trucks or a crane. Modular buildings are different from mobile homes. The structures are different from mobile homes in their absence of a frame or axles. They are normally transported to the construction site by a flat-bed truck. Plenty of modular homes consist of a many level design and require a crane to assemble into place.

Single slope frames create a roof that slopes. Single slope designs are usually used for shopping centers, mini storage complexes, boat storage facilities and offices. These have low and high eave heights that require specification to define the pitch in the roof. Each individual sidewall consists of a different eave height that causes the roof to slope from side to side. The roof is asymmetrical and does not need a high pitch.

The storage that is found under the eaves of structures with a tall roof pitch is not used for several types of businesses, so an increased roof slope is usually unnecessary. The cost-effectiveness of this particular design actually comes from greatly reducing large amounts of unused space.

Another benefit from a single slope steel framed structure is the minimal amount of materials needed. Less is spent on steel because the roof pitch height is minimal. Using less materials assures lower cooling and heating costs due to a smaller building size. Some prefer this design to others because lower stance is more appealing. Single sloped steel frame structures even offer more savings because the back part of the slope needs no colored panel. Depending on the use for the building, metal buildings offer a variety of frames.

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