dryerbox model 425 db-425 | new construction 2x6 walls - venting up dryerbox why the need for a dryerbox? in the past, homeowners had to put up with the inefficient venting of their dryer appliance exhaust due to numerous friction causing bends or kinks in the flex transition hose that connects the dryer to the wall exhaust pipe. lint build-up and a fire hazard are the unwelcome bi-products of these annoying bends. in order to accommodate these flow restrictive bends, the dryer appliance had to be located five to six inches away from the wall, taking away valuable living space. the dryerbox solves these issues and provides many benefits to the builder, the contractor and the homeowner. <br><br> dryerbox receptacles can work in new construction or existing construction as a retrofit. likewise, there are versions that accommodate new-construction (studs with no drywall yet) and retro-fit versions (drywall on the studs). please study the images and specifications carefully in making your decision, noting the location of the mounting flange and the direction of exhaust airflow. <br><br> the model 425 favors an upward exhaust direction in new construction and is designed to accommodate installations that provide stud depth equal to or greater than 4.25”. this model's depth from the nailing flange to the rear is 4.25" and will fit in a 2 x 6 stud bay or 2 x 4 studs with 1" furring strips. the model 425 remains the most popular of the 7 current versions and features the original design. mounting upright is the intended orientation of this receptacle, but it does work on its side. mid-wall installations work great for this model going up or down but only for a dryer stacked above the washer.