Base door and board carriers are very basic carriers. They are used to make holding and carrying large sheet material easier, by providing a supporting grip from below.
They allow the user to hold the sheet with their arm in a relaxed position, down by their side. These carriers assist a single person to carry sheets they would normally struggle to hold on their own.
Usually, base door and board carriers are relatively long, allowing you to support particularly large sheets of material. There are ‘pocket’ versions available which are much shorter. These work in the same way as longer carriers but mean the sheet will be held in a higher position from the ground.