Corrugated spacer board designed by the National Archives to keep file folders standing up straight when a document case is not full. This strong lightweight corrugated blue-gray board is acid-free, lignin free and buffered with a 3% calcium carbonate buffer. Each board is 8″ high 21¼” wide with 5 score lines at each end of the board at one inch intervals to allow the board to be folded to fit either letter or legal size boxes.
Size: 203mm x 540mm
Note: 5 score lines 25mm







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