Dryerbox Model DB-3D
Downward Venting, 2x4 Wall

31 Reviews


Model 3D Dryerbox® - 22 gauge metal deep drawn recessed dryer vent box with gas port measures 3 1/2 inches deep from nailing flange. For 2x4 construction, venting downwards, for standalone dryers.
  • 22 gauge aluminized steel weighing 4.12 pounds each
  • Lower port measures 4 1/8" with very slight oval shape
  • Distance from nailing flange to rear of box is 3 1/2"
  • Overall measurements: 19" h x 16 3/4" w x 4 3/8" deep
  • Inside measures  14" wide x 16" tall
  • Flex hose, screws or clamps are not included

Additional Resources:

Dryerbox Model Specifications 
Dryerbox Installation Tips  
Dryer Venting Guidelines  
Dryer Venting FAQs 


Ratings & Reviews

31 Reviews


3d dryer box

by Tom| 5/1/2013 12:00:00 am

Great product, perfect for its application. the only thing that would make it better is if it had a trim cover and I didn't have to finish the drywall to the lip

A great product!

by John| 10/31/2015 12:00:00 am

I saw an ad in a trade magazine and gave it a try in a house that needed a little extra room for a front loading washer/dryer set. I now use one in every house I build. I always use the down model for 2x4 walls, I don't like to vent up in our cold climate due to condensation. A little advise is to get the washer supply hoses with a 90 degree elbow to attach to the washer so the washer can sit as close to the wall as the dryer can with this amazing dryer box! The only negative I can think of is that you have to plan the dryer location exactly, as you can only move it side to side a couple of inches.


by Alan| 10/20/2012 12:00:00 am

I have been using Dryerbox products for the past two years in new construction and renovation. This product has greatly improved the installation process, appearance, and most importantly function of the clothes dryer. The customers love the ability to push the dryer all the way against the wall for a cleaner look, I love knowing that the vent is not crushed. Installation could not be made easier. If you have not tried this product yet I would recommend doing so.


by Susan| 11/9/2011 12:00:00 am

Great product, well built and well designed.

Built Like A Panzer Tank

by Linus Pauling| 9/4/2015 12:00:00 am

Installing this item saved me a lot of time and trouble because everything fit the way it is supposed to. This is a top quality product. The fit and finish are better than any products made by other manufacturers. I tried two different plastic dryer boxes by others manufacturers and they totally sucked. They didn't fit, were sloppy and were too fragile to leave confidently behind new dry wall. This box by DRYERBOX is heavy duty and engineered to last. I wish I had bought it first. I will be buying the 2 X 6 version for my new house. The space savings and improved ease of dryer maintenance are worth every penny.

box seems great

by steffanie woolen| 4/18/2014 12:00:00 am

product appears to be exactly what we were looking for, sturdy and well made. However, we haven't gotten around to the install yet, but I see no issues arising when we do.

Could not use

by David| 9/16/2014 12:00:00 am

This was not a new job, but a retrofit; in any case due to framing and plumbing constraints I could not use the 3D. ( I modified drier to a side vent where there was room for duct work.) please note that retrofit models would not have worked here either. I hope that we can use it next year at my daughter's new house. I would like to point out that with the hole in this model fixed it does limit where it can be used. An option for a hole on either side would provide benefits. Otherwise, the construction is very good; I would recommend it.


by Alan Sheaffer| 2/2/2012 12:00:00 am

The prodect works well, but would be even better if additional "knock-out" holes were provided to allow different duct configurations for existing construction or tight spaces.


by Chris| 4/30/2013 12:00:00 am

This box was an excellent choice for moving the washer and dryer to the first floor where it was vented downward through the crawlspace and outside. I was very pleased with how solid the dryer box felt when I took it out of the box- the metal construction does not flex in any direction. I also appreciated the multiple predrilled holes and the ability to obtain a UL rating with the product (if installed per the manufacturer's directions). The finished wall will be a tiled wall and we will prime and paint it to match the rest of the house.


by David De Santis| 2/14/2019 12:00:00 am

I would like to see the 4" hole on the right side as well as left to be a punch out so we can choose which side to use. Same goes for the gas line port which should be on the top if you have a down port box. For my install I have to drill a 4" port on the right side of the one already there. Reason being I can not move the drier any further to the right , so it will not line up to allow me to duct the the left side, and I can not move the box to the left due to various elec boxes and drain lines already in the wall. I was limited to which stud spacing I used. For that matter you could even make the upper holes punch outs as well and then include 4 punch outs. Until you open up the wall, you never know how you will be able to orient the ducting in the box for the best fit.

Dryer Box

by Bryan| 3/22/2014 12:00:00 am

Excellent product. Easy to install and just works...

Dryer box

by john| 1/27/2014 12:00:00 am

Thank you, Yes I 've installed dryer box and vent. Very happy with quality of both items. Will definatly use your products in the future. John C.

Dryer Box

by Dave| 8/20/2013 12:00:00 am

Your shipments are always received in a timely manner. Your product is a plus for any laundry room and keeps everything clean and neat in the laundry.

Dryer box

by Brian Ensor| 11/13/2011 12:00:00 am

Great product, very, very, good idea.

dryer box

by joe| 8/25/2014 12:00:00 am

this box is great idea to install in every home, its easy and simple to install, and i would recommend it to all. I wish it was available at local stores.


by Mike| 3/9/2015 12:00:00 am

Great product, fit perfect. Could not find a down flow in any of the big box stores only plastic up flow units that were the same price as this metal product.

great product!

by Nate| 10/23/2018 12:00:00 am

Fantastic product, used the down venting one. Very robust steel, no other product like it really.

Great solution to small space

by John| 3/17/2015 12:00:00 am

Using the 3D Dryerbox reclaimed enough space in the laundry closet for the new dryer. Installing the box was easy, cutting a new hole though the floor, less easy. Eliminating 3 elbows and replacing the 4th with a long turn elbow from Dryerbox made a HUGE difference in air flow. Well worth the effort!

great solution

by Tim| 3/21/2014 12:00:00 am

the dryer box is a great solution to an age old problem. easy installation in new construction, some reframing may be required if the dryer centerline does not match up with the stud layout. I used 4" rigid metal duct and squeezed it very little.


by Terri| 12/5/2011 12:00:00 am

I'm so glad we found this dryer box online. We'd looked every where, big box stores, plumbing supply warehouses, etc. with no luck. It's been instlled & works perfectly.

Model 3D Dryerbox

by Dean| 6/27/2015 12:00:00 am

Product shipped quickly and came packaged well. I used in a small closet for a stacked washer/dryer and it saved the space that I needed. Great product!


by James Hughes| 6/21/2012 12:00:00 am

The dryerbox did the trick; we live in a newer construction house where the builder cut corners by downsizing the laundry area. With a medium dryer we could barely close the garage door; now we have a full three inches of free room. We will likely replace our old dryer with a newer and most likely bigger dryer but with dryerbox at least it will fit. We are very satisfied with the increased space and makes the current laundry room workable. Thank you.


by Tom Hansen| 4/2/2012 12:00:00 am

The dryerbox is just was just what the doctor ordered. The unit was well-made. Due to the circumstances, I needed a 3D model with the hole on the right. The service department was able to send me a unit without a pre-cut hole so I was able to make the penetration exactly where I needed it to suit the project conditions.


by Mike| 10/22/2014 12:00:00 am

I looked and looked for a metal in-wall box that would vent through the crawlspace. This product is well-designed and well-made! I am pleased that I could add a full 4-5 inches to my laundry room, just by installing this box and getting my dryer up against the wall!


by Charles Patterson| 7/27/2012 12:00:00 am

I really like the dryer box. All of them that I have used worked great. They are heavy gauge, install well and aren't easily damaged by other subs. I like the way they look when installed it is nice and clean when finished.