US lumber futures have slid toward $580 per thousand board feet, their weakest since mid May, as softer demand, rising inventories and trade frictions shifted the market decisively toward sellers. US building permits in July fell to a seasonally adjusted annualized rate of roughly 1.35 million, the lowest since June 2020, while the 30-year fixed mortgage sits in the mid six percent range, constraining homebuying and delaying starts that would absorb excess stock. On the supply side mills and distributors that curtailed output earlier have restarted or cleared backlogs and Statistics Canada shows production and shipments ...