Music Staff Chalkboards Our graphic board staves are permanently fused within the porcelain coating to provide a wear and scratch resistance surface. The board is made of magnetic 28-gauge green porcelain enamel steel surface boarded with a satin anodized aluminum frame. This is a five stave board with 1" between each line. Each line is 1/16" thick and white in color, 5" between each staff and 3" border at top & bottom. Each board features a full length chalk tray with rounded ends and is shipped with installation hardware for wall mounting. Lifetime Manufacturer Warranty. Shipped directly from the factory Allow 2-3 weeks for delivery. 4' X 6' WE WILL CALL YOU TO CONFIRM EXACT SHIPPING CHARGES