noun:

• drainboard; floor grates; duckboard; slatted wood (e.g. used as a base for storing futons inside a cupboard)

noun:

• mat (made of pieces of split bamboo or reeds tied together)

noun:

• bamboo screen; rattan blind
• bamboo mat (for rolling sushi)

noun:

• bamboo door; door or screen made of fine bamboo strips, allowing air to pass through

noun:

• wrapping something in a bamboo mat
• wrapping somebody in a bamboo mat and throwing him in a river (Edo period unofficial punishment)