The table is made of two slabs of wood.  One of the slabs arrived very bowed, so much that the table would be unusable for puzzles or anything needing a flat surface.  Wayfair  was excellent with the replacement piece needed!  Our replacement also was just slightly bowed but works ok and provides a flat enough surface for our puzzles.  Gorgeous real wood table, just keep in mind it will not be a perfect flat table top, which kind of adds character.