Cal-Royal ADB-701 Automatic Do...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$129.00
Cal-Royal Cal-Royal ADB Automatic Door Bottoms, Heavy Duty with Neoprene Seal ADB-701

Cal-Royal ADB-701 Automatic Door Bottom, Heavy Duty with Neoprene Seal

(No reviews yet) Write a Review

Model: ADB-704DN-36
$129.00
Selected Finish is

In Stock (leaves warehouse same day if ordered before 3pm ET)

$129.00
Adding to cart… The item has been added
Free Shipping on orders over $199
We price match and offer bulk discounts! Click Add to Quote. It's quick and easy.
✨
Earn points with this purchase! You can redeem points for giftcards, iPads, XBox's and more. View Rewards
Free Keying on all locks
You may also like

Cal-Royal ADB-701 Automatic Door Bottom, Heavy Duty with Neoprene Seal

The Cal-Royal ADB-701 is a heavy-duty automatic door bottom engineered and tested for durability and reliable performance to meet or exceed industry standards. Built from Extruded Aluminum combined with a Closed Cell Sponge Neoprene seal, this semi-mortised or surface mounted unit is designed for use with Wood or Hollow Metal Doors. With a Width of 15/16" (23.3mm), Height of 1 7/8" (48.3mm), and Max. Drop of 7/8" (22.2mm), the ADB-701 delivers an energy-efficient seal that restricts air, light, smoke, and insects around the door opening.

Key Features

  • Precision Dimensions: Width of 15/16" (23.3mm) and Height of 1 7/8" (48.3mm) for accurate semi-mortised or surface mounted installation.
  • Maximum Drop: 7/8" (22.2mm) drop provides an effective seal against the threshold while maintaining smooth door operation.
  • Heavy-Duty Construction: Extruded Aluminum housing combined with Closed Cell Sponge Neoprene seal offers exceptional durability for commercial applications.
  • Efficient Sealing Performance: Blocks out air, smoke, sound, and fire for an energy-efficient door opening.
  • Versatile Mounting Options: Available in Surface Mounted, Semi-Mortised and Mortised Applications to suit a variety of door preparations.
  • Wide Door Compatibility: Can be installed on either Wood or Hollow Metal Doors as specified for the model.
  • Non-Handed Design: Reversible for Left or Right Hand Installation, simplifying stocking and installation.
  • Low Closing Force: Slotted holes allow for easy adjustment, with a maximum cut recommendation of no closer than 1 ½" to the set screw.

Technical Specifications

  • Subcategory: Thresholds
  • Product Group: Door Trim and Accessories
  • Product Subgroup: Door Bottom Sweeps and Door Shoes
  • Commercial/Residential: Commercial
  • Product Model: ADB-701, ADB-704
  • Product Category: Door Trim and Accessories
  • Department: Door Hardware

Typical Applications

  • Commercial Office Buildings
  • Educational Facilities
  • Healthcare Institutions
  • Retail Establishments
  • Industrial and Warehouse Facilities
  • Multi-Tenant Residential Properties
  • Government and Municipal Buildings

Why Cal-Royal ADB-701?

Cal-Royal door weather seal products are engineered and tested for durability and reliable performance, meeting or exceeding industry standards for energy-efficient door sealing. The ADB-701's Extruded Aluminum body and Closed Cell Sponge Neoprene seal, combined with its non-handed reversible design and low closing force, make it a dependable choice for demanding commercial door openings.

Product Specs

Subcategory:
Thresholds
Product Group:
Door Trim and Accessories
Product Subgroup:
Door Bottom Sweeps and Door Shoes
Product Type:
Automatic Door Bottoms
Commercial/Residential:
Commercial
Product Model:
ADB-701, ADB-704
Product Category:
Door Trim and Accessories
Department:
Door Hardware

Cal-Royal ADB-704DN-36 – Frequently Asked Questions

1) Will the Cal-Royal ADB-701 automatic door bottom work on a hollow metal door, or is it wood only?
Both. The ADB-701 is built for wood or hollow metal doors, with an extruded aluminum housing and a closed cell sponge neoprene seal. That covers the typical commercial mix of hollow metal at stair and corridor openings and wood doors on offices and dorm rooms, so one part number handles both door types in the same building.
2) What is the difference between the Cal-Royal ADB-701 and ADB-704 automatic door bottoms?
Mounting prep is the difference. The ADB-701 is the semi-mortised version, which means the door gets a shallow routed pocket and part of the housing still shows on the door face. The ADB-704 is the fully mortised version, which sits inside a routed channel in the bottom edge of the door for a concealed look. The seal, the aluminum housing and the drop are the same; you are choosing based on how much you can machine the door. Semi-mortised is the usual pick for retrofit on an existing door, mortised for doors being prepped new.
3) How much of a gap under the door will a Cal-Royal ADB automatic door bottom close?
Maximum drop is 7/8 inch (22.2mm). That is the most the neoprene seal will travel down toward the threshold when the door closes, so it will seal an undercut up to that amount. If your gap between the door bottom and the finished floor or threshold is larger than 7/8 inch, this will not make contact and you need to reduce the undercut or add a threshold to bring the surface up.
4) How much room do I need in the bottom of the door to fit a Cal-Royal ADB-701?
The housing is 15/16 inch (23.3mm) wide and 1 7/8 inch (48.3mm) high. Those two numbers decide whether it fits your door: the 15/16 inch width has to sit within the door thickness (a standard 1-3/4 inch commercial door has room, a 1-3/8 inch door is tighter), and the 1 7/8 inch height is what the semi-mortised pocket or the surface application has to accommodate at the bottom rail.
5) What is a comparable surface mounted automatic door bottom if I cannot machine a pocket into the door?
The Pemko SA Series in 36 inch is a surface mount automatic door bottom with a GREENGUARD Gold certified Eco-V insert, and it fastens to the face of the door with no routing at all. The Cal-Royal ADB-701 is semi-mortised and the ADB-704 is fully mortised, so both need the door edge prepped. On a fire rated door or a leaf you do not want to cut into, the surface mount unit is the one that installs; the Eco-V insert is also the option to specify on a project chasing low emitting materials credit.
6) Is a door bottom sweep the same thing as an automatic door bottom?
No, and it is the substitution most often made by mistake. The Pemko 345 Series is a door bottom sweep: a fixed seal fastened along the bottom rail that stays in contact with the floor whether the door is open or closed. The Cal-Royal ADB-701 is an automatic door bottom, a mechanism inside an extruded aluminum housing that drops the Neoprene seal up to 7/8 inch when the door closes and lifts it clear when the door opens. Where the floor covering changes across the swing, or where a threshold has to be cleared, the automatic unit is the one that retracts; where the gap under the door is constant and the sweep can simply ride the floor, the 345 sweep does the job with no moving parts.
7) What is the closest equivalent to the Cal-Royal ADB-701 automatic door bottom from Pemko?
The Pemko SA Series automatic door bottom is the direct counterpart. Both are automatic door bottoms that drop a seal when the door closes, and both are offered in a 36 inch length. The Cal-Royal ADB-701 is a semi-mortised unit with a closed cell sponge Neoprene seal, while the Pemko SA3-36 is a surface mount unit carrying a GREENGUARD Gold certified Eco-V insert. If the door is already prepped for a semi-mortised drop seal, the ADB-701 matches that prep; if the door face is staying intact and the seal is going on the surface, the SA Series is set up for that.
8) What should I use instead of the Cal-Royal ADB-701 if I do not want to cut into the door bottom?
Two options avoid mortising. Within the Cal-Royal ADB line, the ADB-701 is the semi-mortised model and the ADB-704 is the mortised model, both in 36 and 48 inch lengths and both in mill finish aluminum or dark bronze anodized with a Neoprene insert. If neither prep is wanted, the Pemko SA3-36 is a surface mount automatic door bottom in 36 inch, which fastens to the face of the door bottom rail rather than into it. That distinction matters most on hollow metal doors already hung and on fire rated leaves where field modification of the door is being avoided.
9) Do I have to order a Cal-Royal ADB-701 door bottom handed for a left or right hand door?
No handing to specify. The ADB-701 is non-handed and reversible for left or right hand installation, so the same unit goes on either swing. For a property manager stocking spares across a building, that means one part number and one shelf location rather than a left and a right of everything.
10) Will a Cal-Royal ADB automatic door bottom help with sound transfer between rooms?
That is one of the things the drop seal is for. When the door closes, the neoprene seal comes down against the threshold and restricts air, light, smoke and insects at the gap under the door, which is the single largest leak path on a closed opening. That same closed gap is what cuts sound transfer, so these are common on conference rooms, exam rooms and dorm corridors. For it to work the seal has to actually reach the floor, so confirm your undercut is within the 7/8 inch drop.
11) For an exterior door that needs to shed water, is the Cal-Royal ADB-701 the right choice or is there a better option?
The ADB-701 seals the gap between door bottom and threshold with a closed cell sponge Neoprene seal that restricts air, light, smoke, and insects, but it carries no rain drip. The Pemko 345 Series door bottom sweep is supplied with a rain drip and a PemkoPrene insert, which puts a projecting drip edge on the face of the door to throw water away from the sill. On an exterior opening where wind driven rain is the concern, the 345 with rain drip addresses that; on an interior opening where the concern is air, smoke, and sound transfer at the threshold, the ADB-701 drop seal is the one built for it.
12) I need a low emitting seal for a LEED project. How does the Cal-Royal ADB-701 compare?
The Cal-Royal ADB-701 uses a closed cell sponge Neoprene seal in an extruded aluminum housing, in mill finish aluminum or dark bronze anodized. The Pemko SA3-36 is an automatic door bottom whose Eco-V insert is GREENGUARD Gold certified, so where the submittal calls for a certified low emitting product by name, that is the unit that carries the certification. Both are automatic door bottoms in 36 inch, so the opening detail does not have to change to go one way or the other.
13) What finishes does the Cal-Royal ADB automatic door bottom come in?
Two: AN, mill finish aluminum with a neoprene insert, and DN, dark bronze anodized aluminum with a neoprene insert. Mill finish is the plain silver aluminum that disappears against most metal frames and thresholds; dark bronze matches doors and hardware already in a bronze or dark anodized scheme. Both finishes are available in 36 inch and 48 inch, and in both the semi-mortised ADB-701 and the mortised ADB-704.
14) Is the Cal-Royal ADB-701 automatic door bottom rated for commercial traffic?
It is a commercial specification part, not a residential weatherstrip. The extruded aluminum housing and closed cell sponge neoprene seal are what carry the duty cycle on office buildings, schools, healthcare facilities, retail, warehouses, multi-tenant residential and government buildings. On the closing side, the slotted holes let you set the drop just tight enough to seal without loading up the closer.
How fast can I get the Cal-Royal ADB-704DN-36 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Cal-Royal ADB-704DN-36 come with a warranty?
Absolutely. The Cal-Royal ADB-704DN-36 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Cal-Royal ADB-704DN-36?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Cal-Royal ADB-704DN-36 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
!