Structural Framing

All frames are welded on a state-of-the-art computerized submerged welding system. We are capable of producing structural members up to 72" in depth, which gives us the ability to manufacture clear-span buildings up to 150 feet wide! A factory primer coating is applied to protect the beams during shipping and erection.

All framing members shall be shop fabricated for field bolted assembly unless otherwise noted on plans and specifications. All building parts shall carry an identifying mark for easy field identification. Structural framing shall include tapered beam frames, tapered rigid frames, modular beam and columns, lean-to rafters and columns, canopy beams, intermediate columns bearing end frames and end wall columns. Steel used in the fabrication of built-up primary structural members shall have a minimum yield of 50 KSI. Hot rolled primary structural members shall have a minimum yield of 50 KSI. Cold rolled structural members shall have a minimum yield of 55 KSI. Primary framing shall be shop fabricated and include all holes required for attachment of secondary members and bracing. A continuous arc-welding process shall join flanges and webs of built-up welded members. End wall columns and rafters shall be "hot-rolled" built-up "I" or standard "cee" sections.

Connections - All field connections shall be bolted. All primary bolted connections shall be furnished with high strength bolts conforming to A.S.T.M. A-325. All secondary bolted connections shall be furnished with machine bolts conforming to A.S.T.M.-A307.

Components/Accessories

Which base trim option should I choose? - The base trim that you choose for your steel building will depend on your building's needs and the type of foundation you use. Although we strongly recommend a notched base, we do offer several additional base trim options to suit your specific needs. Please see base conditions for more helpful information and illustrations.

What type of windows do you offer? - We offer a selection of windows for your building. To learn more about what's available please visit the accessories section of our website.

What comes with the doors and windows? - All of our doors and windows come with the required hardware to install them into your steel building. We provide the framing, trim, and flashing for a proper installation.

How do I know where to place my windows and doors? - Windows and walk doors are generally "field located." You, as the customer, will pick the location, cut the corresponding panel to size and proceed to mount the doors and windows. If you choose to include a large number of windows or doors we may ask you to give us your proposed location to ensure proper building bracing.

How do I attach my doors and windows? - All of our walk doors are self-framing, so they include the necessary items to mount them on your building. Our windows are secured by screwing the window trim directly into the building. This is also known as self-flashing. If you live in a high wind area, please talk to one of our design consultants about additional door and window mounting options.

What is the R-Value of your insulation? - The r-value of our insulation depends on the thickness you choose. It will vary between R-10 and R-19. Please see the r-value section of our website for more helpful information.

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.

Gutters & Downspouts

These are generally not required on steel buildings. However, use of these components often enhances the appearance of a building, control drip, splash and drainage.

Gutters and downspouts are an optional accessory that serves as trim. Gutters dramatically improve the appearance of buildings, and we recommend them for most building applications. Downspouts control the water falling from the roof, preventing the water from splashing up on the sides of the building.

On every Metal Building Depot building, die-formed ridge caps are used to cover the peak opening in the center ridge of the building. Some sellers provide a ridge roll cover that must be sealed with closures. Installing ridge roll trim is not an easy task. Over time the exposed foam closures deteriorate and there can be potential leak problems. Our die-formed ridge caps match the panel profile perfectly and are formed to fit the pitch of the roof. Die-formed ridge caps create an almost seamless transition across the roof.

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.