The futures price for lumber peaked in early May. But the "cash" price (the price sawmills charge distributors and wholesalers) kept hitting new all-time highs through last week. That has finally reversed: On Friday, the cash price per thousand board feet of lumber fell to $1,446, according to industry trade publication Random Lengths. That's down from the $1,515 all-time high set a week prior. For some experts the dip suggests the "market has tipped."  What does it mean? In the coming weeks, you might start to see a markdown on lumber ...