funky ironing board cover_ironing board cover for steam iron

Speaking from personal experience as a welder, steel is a lot easier to work with than iron. If someone manages to break a piece of steel (which isn’t easy), repairing it is a simple matter of properly positioning the pieces and welding them together. In contrast, repairing a cracked or damaged piece of iron means heating the whole piece back up to nearly molten temperatures, then carefully welding it in stages--with pauses to reheat the piece--while sometimes giving it a whack with a hammer and hoping you don’t hear the tell-tale ping of a crack forming somewhere else. Iron is a finicky material.

Aluminum windows and doors profiles are easy to maintain.

Thresholds are simply materials that are found at the bottom of doorways. The main purpose of thresholds is to set a particular building or structure at an elevated position compared to the outer floor leveling.