The duties assigned to the sons of Merari were the tabernacle’s frames, crossbars, posts, bases, and all its equipment—all the service for these items,
Jewish Publication Society of America Version (JPS1917) - Numbers 3:36 >the appointed charge of the sons of Merari being the boards of the tabernacle, and the bars thereof, and the pillars thereof, and the sockets thereof, and all the instruments thereof, and all that pertaineth to the service thereof;