Amazon is known for great savings and unexpected markdowns at any given time, but when it comes to the big, expensive stuff—like furniture—you can’t beat the prices of a sale event like October Prime Day.

Amazon’s outlet is full of furniture deals this weekend, and our favorite finds are up to 89 percent off. Save on bed frames, standing desks, loveseat sofas, and outdoor furniture like patio dining sets and Adirondack chairs.

Upgrade your productivity, and save your posture, with the 12 best office chairs that are on sale as part of Amazon's October Prime Big Deal Days.