Holders, systems, and methods for assembling bundles

An electrical raceway system comprising:

• a forming board;
• a plurality of holders coupled to the forming board, each one of the holders comprising:
• a frame comprising a first post and a second post that is spaced away from the first post, wherein the first post and the second post form a retention volume;
• a first arm coupled to the first post and movable relative to the first post;
• and
• a second arm coupled to the second post and movable relative to the second post;
• and
• a wire bundle, comprising a plurality of wires, positioned in the retention volume,
• wherein the first arm and the second arm are movable between a first open position for positioning the wires in the retention volume, a closed position for enclosing the wires in the retention volume, and a second open position for removing the wires from the retention volume.

A method for supporting an elongate member, the method comprising:

• coupling a holder to a support platform;
• positioning the elongate member on at least one of a first arm and a second arm of the holder;
• applying a downward force on the elongate member to downwardly pivot at least one of the first arm and the second arm to a first open position relative to a first post and a second post of the holder and to position the elongate member in a retention volume formed between the first post and the second post;
• and
• pivoting the first arm and the second arm to a closed position relative to first post and the second post;
• and
• enclosing the elongate member in the retention volume between the first post, the second post, the first arm, and the second arm.