What are the cabinet's dimensions?

It is 31.5 inches wide. Mondawe lists the width as the headline spec; check the height and depth on the listing before you commit to a wall.

No. Cabinets at this tier are typically engineered wood with a white painted or laminate finish, not solid hardwood. Expect a lighter, more uniform look than grain-matched wood.

Does it have shelves or drawers inside?

It is a two-door cabinet, so storage is behind the doors rather than in drawers. Confirm the shelf count and whether shelves adjust on the listing.

Can it be used in a bathroom?

It can, but the finish is not rated for wet areas. Keep it away from direct splashes and dry any spills promptly to protect the surface.

How does it compare with a sideboard with drawers?

A drawer unit gives you faster access to small items and often soft-close hardware. This cabinet gives you more closed volume and a wider top for the same footprint.