I-Beam

The  is a type of block in Build A Boat For Treasure. It is weaker than Marble Block, but it is still a viable option. It can be used for weighing things down due to its weight. This block is also quite rare compared to other blocks in the Uncommon Chest.

Trivia

 * On 7/14/19, the I-beams could have been bought in the shop and can appear occasionally in the shop.
 * These can be used as a decoration for building ship radars and can be a decoration as an anvil.
 * It is common for players to think this is a very tough material.
 * The is a heavy block, needing 7 balloons to lift a single block (just like Titanium)