raft
筏 centers on a simple floating platform made of tied materials: a raft.
筏 combines 竹 (bamboo) with 伐, which likely contributes the sound and suggests cutting or felling bamboo to construct a raft.
Bamboo 竹 is cut and tied 伐 together to make a raft: 筏 is a raft made of bamboo.
For バツ, imagine a raft made of bats: bats -> バツ, and the bats are tied together like bamboo poles.
raft
butcher's broom (Ruscus aculeatus)
Taiwanese bamboo raft
raftsman; rafter
raftsman; rafter
sending logs downstream bound together in rafts; floating bound timber downstream; timber rafting
floral raft; flower raft; flower petals fallen on water, resembling a raft