Steel Building Components

Purchasing a new steel building and choosing the right general contractor to successfully complete your construction project is a big decision. We understand that when it comes to steel building construction, durability is key. As a Capital Steel dealer, we can assure you will have the best steel building materials for your project. With Hibbs General Contracting, your project will be in good hands.

Contact us for a quote for your steel building components at (314) 392-9631.


80,000 p.s.i. Steel Sheeting

80,000 p.s.i. yield material is standard on Capital Steel buildings. Some manufacturers use a lower yield strength material, which is less resistant to damage from hail and other impacts.

All Coil Steel Sheeting

All Coil Steel with Galvalume coating standard (1.25oz – hot dipped) on each side helps prevent deterioration of the steel sheeting.

Deeper High Rib Steel Sheeting

Deeper High-Rib with more frequent corrugations, provides extra strength for the steel building.

Purlin Bearing Rib Steel Panels

The purlin bearing rib provides a better weather tight seal between the roof sheets on your steel building.

Optimal Semi-Concealed Panel “Shadow Line”

This configuration is available for walls, mansard systems, soffit material, etc. to add an aesthetic appeal to your Capital Steel building.

Primary Steel Building Framing

Solid I-Beam Construction for the Strength of Your Building

By using a higher yield strength material, a smaller web can be utilized which provides for a space saving design. Capital Steel building frames are single bead; continuous submerged arc welded by automatic welding machines (this helps insure quality control). A factory primer coat is applied to help protect the steel during the erection process.

End Wall Frames and Columns

Your end wall frames and columns are either cold formed, mill-rolled or built-up “I” sections depending on your specific steel building design requirements.

Secondary Framing

Girts (in sidewall)

Are 8.5” or 10” to meet design requirements, cold rolled Z-section, 13 to 16 ga. ASTM A-570, 50,000 or 55,0000 p.s.i. yield material is used to provide maximum strength. Bypass girt system overlaps at sidewall columns forming a continuous “beam” for extra strength.

Purlins (in roof)

Are 8”, 10”, or 12” to meet design requirements. In Capital Steel buildings your purlins are top-mounted on the rafter with a varied lap of 2’to 6’ for strength and cost savings in erection labor. Maximum purlin spacing is 5’ on center. Purlins also use a bypass system.

Eave Strut

Is a cold-formed C-Section that is rolled for the appropriate roof pitch to help insure that all Capital Steel buildings are weather-tight at the eave.

Sheeting Angle

Is a continuous angle supplied for the attachment of the sheeting at the rake of the building for ease of installation of Capital Steel buildings.

Base Angle

Is a continuous angle, supplied for the attachment of the base of the sheeting to the concrete. It is attached to the concrete with ram-sets or equivalent anchors by others.


For Capital Steel buildings either diagonal rod or cable bracing may be supplied for roof and walls to remove longitudinal load from the structure as needed.

Angle Flange Bracing

Is provided for the connection of the rigid frame to the purlins and girts. This ensures that allowable compression levels are adequate for any combination of loadings.

Purlin bridging angles may be provided at each mid-bay to assure consistent purlin spacing and stiffening.


Structural Bolts

Structural bolts used with Capital Steel brand buildings meet requirements of ASTM standards. ASTM Standards: A-325 for primary frame connections. A-307 for secondary framing.

ASTM Standards: A-325 for primary frame connections. A-307 for secondary framing.

Self Drilling and Self Tapping Fasteners

Are pre-assembled with neoprene washers and metal caps to help insure weather tightness of your steel building. This feature is one of many qualities that sets a steel building apart from traditional construction, steel buildings will not leak which prevents potential water damage.

Sealants | Trim | Flashing


For roof sidelaps, endlaps and flashing gable is provided to help insure weather tightness. Nominal 3/8” x 1/8” thick pressure sensitive tape sealant for ease of installation.

Trimming and Flashing

Trimming at rake (gable) corners and eaves is provided for all Capital Steel buildings with standard trim material for a finished look. This is also a deterrent to moisture, insects, and dirt getting into the building.

Ridge Cap

Preformed High Rib Ridge Cap Panel

Matches the slope and profile of adjoining roof panels on Capital Steel buildings to help ensure constant alignment and weather tightness.

Long Overlap

Is provided to help prevent water from siphoning into the building.