When yarn length needs to be measured prior to warping the loom, Schacht warping boards are favored for their durability and ease of use. Double lap joints are fastened with wing nuts making the board easy to assemble and disassemble for storage. Crafted from hard maple, it is sanded and oiled to a fine finish. Designed to measure 4½ yards of warp yarn, the board weighs 3½ lbs. 20" × 20" × 6" overall.