Ductwork

Full Round Aeration Duct

Corrugated, blank or perforated,  galvanized aeration duct in 18 gauge to 14 gauge, ranging from 12" diameter to 30" diameter. Rolfes @ Tiernan sizes duct to ensure maximum efficiency. "X-Bracing" is available for structures with high grain depths to decrease the possibility of collapsed duct. 

Half-Round Aeration Duct

Corrugated, blank or perforated, galvanized aeration duct in 18" to 38" diameter, and gauges 18 to 14.

Manifold Systems

Manifold systems are useful when trying to air multiple bins using a single run of fans. Tiernan can design/manufacture a custom manifold aeration system to fit the specific needs of any facility. 

Bar Grating/Drive-over Floors

Looking to unload flat storage with a front-end loader or other heavy equipment? We design bar grating/drive-over aeration floors to support the weight of the piece of equipment the user plans to use.

Flush Floor Cut Sheets

Corrugated, galvanized, 14 gauge flush floor cut sheets for flat bottom grain storage. Cut sheets come in different lengths up to 144". To ensure the flush floor cut sheets withstand deep grain depths, Tiernan also manufactures tunnel supports for different tunnel depths/widths.