average cost of carpet padding and installation
1 Decent carpeting and padding can usually be installed for $19-$38 a square yard, or $300-$600 for a 12x12-foot room. 2  If it's not included, add, $2.50-$6 a square yard for padding. 3  Be skeptical of prices that include free padding, because good padding increases the life span of your carpet; ask about upgrades.