Secondary Framing

Secondary framing is created from rolled steel coated with a red-oxide primer finish in gages from 12 to 16 to provide an extremely rigid, and corrosion resistant structure. The following elements are formed as secondary framing:

Girts (walls) & Purlins (roof): These members run the length of the building providing rigidity, and a sturdy skeleton to attach the sheeting. They are rolled from steel coils 12,14 or 16-gauge steel, or thicker if needed. All girts and purlins are pre-punched for ease of assembly.

Eave Struts: This is a rolled member formed into a "C" to match the pitch of the roof. The eave strut is also made of 12, 14, or 16-gauge steel.

Steel Buildings

Why should I build with steel instead of wood? - The number one reason is strength. Steel buildings can withstand high load conditions. Steel buildings are fastened together with high-strength bolts and screws. The connections remain secure because there is little to no movement in the structural members and panels. However, wood connections in conventional construction become loose due to expansion and contraction and the result is warping of the wooden frame. Steel does not warp, shrink, or change with time so the connections remain secure. Wooden buildings can suffer damage do to insects such as termites, and this deterioration will reduce the quality of wooden buildings. Furthermore, metal building material is not a flammable substance so your insurance costs will be reduced.

How does the price of a steel building compare with others? - Conventional construction materials are affected by demand and availability; conversely, steel has remained relatively constant for many years. When it comes to pre-fabricated steel buildings it would be difficult to find a like structure to compare with the low cost of a steel building.

Is everything I need to construct my building included? - Everything you need to construct your new metal building will be included with the exception of the anchor bolts, which should be supplied by your foundation contractor.

What is Bay Spacing? - It is the space between 2 frames. For example, the end wall of the building is the End-Frame, and the distance between the End-Frame and the next column/rafter section is the Bay Space, or the distance between two column/rafter sections.

How do I assemble my steel building? - Steel building assembly couldn't be easier. We provide you with the necessary information to erect your steel building quickly and efficiently. Many of our clients erect their steel buildings on their own, although a professional contractor can also used at an affordable price.

Are the steel buildings painted? - Yes, the walls and trim are painted with a long-lasting factory-applied paint manufactured by a leading manufacturer of heavy duty, high performance protective coatings for steel building components. There is a wide selection of colors for you to choose from. You can select the wall panel, trim, and roof colors on the color chart section of our website.

Frame Types

Unlike any of our competitors, we allow you to price all building frame types. Select from Clear-span or Modular rigid-frame buildings. We allow you the full flexibility to choose Gable, Single Sloped or Offset Peak building shape. By far, we offer the widest selection of building and frame types. For options not available through the online system, you will need to request a special quote.

Clear-span Frames - A clear-span rigid frame offers strength and economy. Since no interior supports are necessary, this design is best when you require large areas of clear and uninterrupted space. Factories, warehouses and agricultural buildings are just a few building types that may utilize a clear-span frame building. A clear-span design does have size limitations. As the desired width increases, the frames will become larger and heavier to carry greater loads across the length of the frame. At some point the cost will outweigh the benefit. Even so, clear-span buildings are still effective for buildings as wide as 150' feet and wider in some cases.

Modular Frames - Modular frames use interior columns to evenly distribute the load; reducing the cost of both the frame and foundation of extra wide buildings. The economical advantages become obvious when a building width is about 100' wide or wider. As a result, almost all buildings 100' wide or wider have interior support columns. Modular designs are often used for large factories and warehouses.

Single Slope Frames - Single slope frames have high and low eave heights creating a roof that "slopes" from side to side. To select a single slope design, you specify one eave height and define the roof pitch. Single slope designs are frequently used for strip shopping centers, offices, and RV/Boat storage facilities.

Just about every steel building has at least one framed opening. It is not unusual for buildings to have several openings. Most openings are created for an overhead door, but can be used for the installation of glass fronts or other entries. Most other online sellers offer "field located" framed openings, which require cutting and fabricating on the job site. Metal Building Depot always provides factory-located openings unless your project requires something otherwise.

Heat Transfer

Effectively controlling temperature in a steel building requires insulation to be present along exterior walls and roof. When a temperature differential is present in an enclosed steel building, heat will work from warmer areas to colder areas until the temperature in the building has stabilized. At the point of thermal stabilization, the cooler (and heavier) air will be present at lower elevations and warmer air will be present at the roofline. The function of insulation is to help stabilize air temperature at more desirable levels. When it is hot outside, preventing heat from transferring into the building is the goal, and of course in the winter we want heat to remain inside.

Heat transfer occurs in three ways:

Conduction : Occurs in a solid or liquid when heat from one object is transferred by touch to another object. An example of this occurs when a pot on a stove will heat up by conductive heat transfer from an electric coil.

Convection : Occurs with the physical movement of air. There are two types of convectional heat movement. The first is natural, where hot air rises displacing the cold air and moving it down. The second type is forced or mechanical convection. This occurs when an object, like a fan, physically moves or "forces" the air to move.

Radiation : Occurs when an object is warmer or hotter than the air around it. For example, the sun, which is hotter than everything around it, radiates heat waves that travel through the air and is either absorbed by or reflected by the surface it comes in contact with.

Jamb Cover Trim

One of the trim options we offer is jamb cover trim. Though common, the red-iron jamb and header around a door opening are normally exposed. Using jamb cover trim is an inexpensive way to improve the appearance of your steel building.