what items were the Merari responsible for with the tabernacle kjv

The sons of Merari were responsible for the structural parts of the tabernacle: the boards, bars, pillars, sockets, and all the related equipment. They also handled the courtyard posts , bases, pegs, and cords.

In KJV wording, Numbers 3:36 says their charge included:

• The boards of the tabernacle.
• The bars thereof.
• The pillars thereof.
• The sockets thereof.
• All the vessels thereof, and all that served thereto.
• The pillars of the court round about, with their sockets, pins, and cords.

Numbers 4:31-32 gives the same idea more specifically: they carried the frames , bars , pillars , bases , and the items for the court.