Steel Sectional Door Projects Budget Sectional Doors for a Grain Storage Facility China Project reference: Budget Sectional Doors for a Grain Storage Facility. Customer Challenge A grain facility needed durable doors on a tight budget, with infrequent but heavy vehicle traffic. Our Solution We proposed 60 mm galvanised steel doors with mechanical operation and reinforced bottom rails - the right size for the duty cycle. Results The facility received doors matched to real traffic instead of over-specified ones, saving roughly a fifth of its door budget.