Long term corrosion was of concern for the client so these artistic security bars are made from stainless steel. They will outlive the house.
Stainless steel is an excellent material to use for custom security doors and bars which, because they are one-offs, are more expensive to build. By spending a bit more for stainless steel materials the client is guaranteed a product that will stand the test of time and be a sound long term investment for their property.
Welding the stainless steel parts together proved to be a difficult job. The design is all curves which had to be joined together seamlessly. Each weld was executed and smoothed one at a time because most of the welds would be inaccessible in the completed grille. To reduce warping the grille was welded in sections with the outer frame being the last part attached. The welding process took three days.