Flat Boxes

Columbia 10" Drywall Flat Finishing Box is the most common selling size of flat box for the first coat, in the US market.  It works great for running flat joints and butt seams.  Easy open door plate makes for very easy clean up and will fit on all major...

Columbia Drywall Taping Tools 7” Hinged Flat Box is the perfect sized box for base coating taped seams.  This new 7" Columbia box has many new improvements including the "No Swell" rubber gaskets, pivoting axle, and aluminum wheels with integrated...

With the Columbia 10" Fat Boy Boxes you can hold 30% more mud compared to the standard flat boxes.  This box will also fit all major brands of flat box handles.  The inside track boxed feature the wheels mounted on the inside of the side plates.  This...

 The Columbia Automatic Flat Boxes reduce the need to push the compound onto 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...

Columbia Drywall Taping Tools 8” Flat Box is the perfect sized box for base coating taped seams.  This new 8" Columbia box has many new improvements including the "No Swell" rubber gaskets, pivoting axle, and aluminum wheels with integrated o-rings.  The...

The Columbia 12" Drywall Flat Finishing Box is a high-quality tool for quickly and efficiently finishing drywall surfaces. Made from durable materials, this finishing box is built to withstand frequent use and delivers consistent results every time. Its...