Oklahoma Metal Buildings

Wind Ratings in Oklahoma

Why it matters:

Oklahoma is one of the windiest and most tornado-prone states in the U.S., especially in central and western regions. This makes wind resistance a critical factor for metal structures.

Key concerns:

• High wind speeds during thunderstorms and tornado season.
• Local building codes often require structures to be rated for wind speeds of 90–140 mph, depending on the location.
• Some areas (especially near Oklahoma City, Tulsa, and western parts) may need engineered certified buildings that meet ICC or IBC standards.
• Anchoring is key – poor anchoring is one of the top reasons metal buildings fail in high wind.

What to do:

• Offer certified carports and metal buildings with wind ratings of at least 115–140 mph, depending on the area.
• Recommend concrete foundations and proper anchor types: mobile home anchors, concrete bolts, or asphalt anchors.
• Suggest bracing upgrades and vertical roof styles to improve wind performance.

Snow Ratings in Oklahoma

Why it matters:

While not a major concern like in northern states, Oklahoma does experience occasional snowfalls, especially in the panhandle and northern regions.

Key concerns:

• Snow load requirements are generally low across the state.
• Some northern counties may require 20–30 psf (pounds per square foot) snow load capacity.
• Southern and central areas may only require 10–20 psf, depending on local code.

What to do:

• For most of Oklahoma, standard snow load designs are sufficient.
• In higher elevation or northern counties, offer certified buildings rated for at least 20–30 psf.
• Recommend vertical roofs to help snow slide off and prevent buildup, especially for garages and enclosed buildings.