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It was not until 1880 that an era of construction based on reliable mild steel began. By that date the quality of steels being produced had become reasonably consistent. The Home Insurance Building, completed in 1885, was the first to use skeleton frame construction, relying on its masonry cladding for stability.

The super king size bed is the largest bed widely available, and only the emperor size is larger. In the UK, super king size beds measure at 72 x 78  or 6 by 6.5 feet.

According to the company, Ace is significantly bigger than your average king size mattress, with dimensions measuring 108 inches by 80 inches (an average king size mattress in the U.S. is 76 inches by 80 inches).

A standard double bed is 4 feet 6 inches wide and 6 feet 3 inches long (137 x 190 cm). This is the most common and widely available size for all bed types in the UK. A standard king size bed is 5 feet wide and 6 feet 6 inches long (150 x 198 cm).

An average commercial steel building costs between $16 and $20 per square foot, including building package (I-Beams, purlins, girts etc.) , delivery, foundation and the cost of construction.