Flat Boxes

COLUMBIA 8" INSIDE TRACK FAT BOY BOX FEATURES: Available in 5.5″, 8″, 10″, 12″ sizes Bead wheel protects axel from wear while running box on bead Hand made from U.S. billet aluminum and steel components Machined in Canada

 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...

 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...

 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...

Columbia 8" Fat Boy Drywall Flat Finishing Box holds 30% more mud than the standard Columbia 8" Flat Box. It works great for running the first coat on flat joints and butt seams.  With 30% more mud, you can go longer distances without having to fill it...

Need a larger, stronger box with greater mud capacity for loading flats and butts?  We are proud to meet your needs with the Columbia 14" Flat Box.  This is the largest flat box available on the market today.  This box works great for floating butt...

Columbia 5.5" Drywall Flat Box is the perfect box for getting into those tight areas.  It will fit on all major brands of flat box handles.  Well-built and fine-tuned to offer great flat joints for years. We have been being told for years that our boxes...

Columbia 10" Fat Boy Drywall Flat Finishing Box holds 30% more mud than the standard Columbia 10" Flat Box. It works great for running the first coat on flat joints and butt seams.  With 30% more mud, you can go longer distances without having to fill it...

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...

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...

Columbia 12" Fat Boy Drywall Flat Finishing Box holds 30% more mud than the standard Columbia 12" Flat Box. It works great for running the first coat on flat joints and butt seams.  With 30% more mud, you can go longer distances without having to fill it...