Flat Boxes

The Platinum 8" Flat Finishing Box is designed to automatically apply and feather joint compound, delivering professional-grade results with minimal effort. Whether you're working on butt joints or flat joints, this box ensures a consistent, smooth...

The Platinum 10" Flat Finishing Box automatically dispenses the proper amount of joint compound and feathers the edges of butt joints and flat joints in one pass. The Platinum Finishing Box helps produce professional results every time. The adjustable...

The Platinum Flat Finishing Box automatically dispenses the proper amount of joint compound and feathers the edges of butt joints and flat joints in one pass. The Platinum Finishing Box helps produce professional results every time. The adjustable crown...