barber chair dangerous condition created when a tree or branch splits upward vertically from the back cut. slab up. barber chair (Wikipedia) A barber chair is a chair for customers of a barber. A barber chair in a recreation of J. N. Hooper's Barber Shop (Seattle, WA circa 1880s) at the Museum of History and Industry « Back to Glossary Index ATP: Asia Tree Preservation2016-12-16T18:22:19+08:00 Share This Story, Choose Your Platform! FacebookTwitterRedditLinkedInTumblrPinterestVkEmail