Flat Boxes

 The Columbia Automatic Flat Boxes reduce the need to push the compound on to the wall. By engaging, the box springs put pressure on the compound chamber requiring only a light push to operate the box. Well-built and fine-tuned to offer great flat joints...

The High Capacity Inside Track Drywall Master 12" specialty box is a workhorse.  Wheels are mounted on the inside of the box Reduce the number of trips refilling your box with a high capacity flat finishing box