Kanji
1. sheathing (under thatched roofing)
2. lath (used as a foundation for a mud plaster wall)
3. decorative rafters (of alternating wood and bamboo)
1. Of the frame; Framed
1. With the pier; On the pier
1. Is/are (polite); It is/they are (polite)
1. Was (a plank/beam/rafter)
1. Was not a pier.; Was not a beam.
1. It is not a pier.; It is not a beam.
1. It's not a shelf.; It's not a plank.