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Besides, how much is a bag of salt?
Salt is 12 to 15 dollars a bag here. it's even more otherwise.
In respect to this, how much does a 50lb bag of salt cover?
A 50-pound bag of the material will hold about 80 cups. One cup will melt about 20 square feet of ice. So one bag will typically take care of about 1600 square feet. You can figure an average home has about 1000 square feet of driveways and walkways, including steps.
While road salt is imminent to safe winter driving, it is also extremely corrosive and over time it can cause extensive damage to vehicles. The biggest threat salt poses to a vehicle is rust, which is accelerated by repeated exposure to salt.