. Flats are built in individual sizes. _________ 2. Hard-covered flats are covered with plywood. _________ 3. Stiles are the top and bottom framing members of a flat. _________ 4. Corner Blocks are used to join the corners of a hard-covered flat. _________ 5. Toggles are cross pieces that run between the stiles. _________ 6. Flats can be soft or hard covered. _________ 7. Corner Braces are pieces placed at a 90° angle. _________ 8. Flat is short for Scenery Flat. _________ 9. Rails run the full height of the flat. _________ 10. Keystones join the toggles to the rails of soft-cover flats. ______ true or false