Dorma RTS88 Series - RTS11 Ove...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$950.00
$681.83
Dorma RTS88 Series - RTS11 Overhead Concealed Door Closer, Center Hung End Load, Double or Single Acting, Aluminum Door and Frame Application (Non-Handed)

Dorma RTS88 Series - RTS11 Overhead Concealed Door Closer, Center Hung End Load, Double or Single Acting, Aluminum Door and Frame Application (Non-Handed)

(No reviews yet) Write a Review

Model: RTS11 105 NHO SZ3
$950.00
$681.83
Selected Finish (Including 8653 Cover Frame) is

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

$950.00
$681.83
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

DORMA RTS88 Series Overhead Concealed Door Closer

The RTS88 is designed to give lasting, dependable service where surface applied units and other types of closers are not suitable, or would interfere with the architectural design. It can be easily installed in wood, aluminum, or hollow metal doors and frames, for single and double-acting doors.

  • Concealed installation
  • For single and double-acting doors
  • Dependable and easy to Install

Aesthetic advantages

Architects are often challenged to design buildings that are both beautiful and functional, down to the last detail. The DORMA RTS88 overhead concealed door closer offers the perfect solution for those who prefer the aesthetic advantages of a concealed door closer.

Vandalism protection

The RTS88 is an excellent replacement closer for problem entrances encountering vandalism of surface applied closers.

Benefits for the contractor

Contractors appreciate the RTS88 closer, because the majority of door and frame preparation is done prior to installation of the unit, resulting in less on-site machining.

Resources:
RTS88 Series Catalog

Manufacturer Resources

Product Specs

Product Group:
Door Controls
Series:
RTS Series
Product Subgroup:
Door Closers - Overhead Concealed
Product Type:
Overhead Concealed Door Closers
Subcategory:
Concealed Door Closers
Door Weight:
250 lbs
Door Swing:
Single or Double Acting
Commercial/Residential:
Commercial
Package Features:
CH End; Aluminum Door and Frame
Product Model:
RTS11
Door Hand Direction:
Non-Handed
Product Category:
Door Controls
Department:
Door Hardware

Dormakaba RTS11 105 NHO SZ3 – Frequently Asked Questions

1) How heavy a door will the Dorma RTS11 overhead concealed closer handle?
The RTS11 is rated for doors up to 250 lbs. That covers most full-height aluminum entrance doors. If your leaf is lighter, say a 200 lb aluminum door, comparable center hung concealed closers like the Norton Rixson 608 or 700 Series are rated to 200 lbs, so the RTS11 gives you headroom above those.
2) Do I need to order a left hand or right hand version of the RTS11?
No handing to specify. The RTS11 is non-handed and works single acting or double acting, so the same unit covers an in-swing, an out-swing, or a door that swings both ways.
3) Will the Dorma RTS11 work on a center hung aluminum storefront door?
That is exactly what it is built for. The RTS11 is the center hung, end load configuration set up for aluminum door and frame applications. For an offset hung aluminum door you want an offset unit instead, such as the Norton Rixson 0608 Series.
4) Which spring size should I order for a 3'-0" exterior aluminum entrance?
For a 2'-6" to 3'-0" exterior door, SZ3 is the standard closing force. If the opening has to meet a barrier free light opening force requirement on a 3'-0" exterior door, order BFE instead; BFI is the same idea for a 3'-0" interior door. SZ4 is the strongest, for 3'-0" to 3'-6" exterior or 3'-6" to 4'-0" interior doors, and SZ2 is a light opening force option.
5) What do I have to specify when ordering a Dorma RTS11 closer?
Four choices decide the part: spring size (BFE, BFI, SZ2, SZ3 or SZ4), cushion stop at 90 or 105 degrees, hold open or non hold open, and the package option, which is standard, with the 8563 frame cover plate added, or with a 5mm extended spindle. Finish is chosen separately and includes the 8653 cover frame: 600 prime coat, 689 aluminum, 690 statuary bronze, 691 dull bronze, 693 black, 695 dark duradonic bronze, and 696 gold.
6) What is the closest equivalent to the Dorma RTS11 overhead concealed closer from another manufacturer?
The Norton Rixson 73 Series is the nearest match. Like the RTS11, it is a center hung overhead concealed closer rated for 250 lb doors, it is double acting, and it comes with a cover plate. The RTS11 carries a 250 lb door weight rating and is a center hung end load unit for aluminum door and frame applications, single or double acting and non-handed. The Rixson 73 is listed as heavy duty, Grade 1. Confirm your frame head prep matches the case you are ordering, since concealed closer cases are not interchangeable between brands.
7) My door is offset hung, not center hung - what concealed closer should I use instead of the RTS11?
The RTS11 is a center hung end load unit, so it will not suit an offset hung aluminum door. For that pivot arrangement, the Norton Rixson 0608 Series is an offset hung overhead concealed closer for aluminum doors up to 200 lbs, listed as standard duty. Check your leaf weight against that 200 lb figure before ordering, since the RTS11 covers doors up to 250 lbs.
8) I need a concealed closer that opens to 180 degrees - does the RTS11 do that?
The RTS11 is offered with a 90 degree or 105 degree cushion stop, so it is not the unit for a full 180 degree swing. The Sargent 269 is an overhead concealed closer with 180 degree opening capability, listed as heavy duty Grade 1. If the opening only needs to stop at 90 or 105, the RTS11 covers that directly and is available with or without hold open.
9) Should I use an overhead concealed closer or a surface mounted one on a vandal prone entrance?
Concealed is the answer where surface closers keep getting torn off or tampered with. The RTS88 family is specifically used as a replacement on problem entrances with vandalized surface applied closers, and it also keeps the hardware out of sight where a surface unit would fight the architecture.
10) Does the RTS11 concealed closer come with a hold open?
Hold open is an option, not standard. You pick hold open or non hold open at order time, and separately a cushion stop at 90 or 105 degrees. If you want a fixed non hold open concealed body only, CRL Jackson offers 90 and 105 degree non hold open units as well.
11) Can the Dorma RTS11 be installed in wood or hollow metal doors, not just aluminum?
The RTS88 closer installs in wood, aluminum, or hollow metal doors and frames. This particular RTS11 package is configured for aluminum door and frame applications, center hung end load, so for a wood or hollow metal opening you would order the RTS88 variant prepped for that material.
12) If I need a Grade 1 concealed closer for a spec, what are my options alongside the RTS11?
Peers carrying a Grade 1 listing include the Norton Rixson 73 Series, a heavy duty center hung double acting unit with cover plate for 250 lb doors, and the Sargent 268 and 269, both heavy duty Grade 1 overhead concealed closers, the 268 with a cast iron body and the 269 with 180 degree opening capability. The Dorma RTS11 is a commercial center hung end load closer for 250 lb aluminum doors, single or double acting and non-handed, with barrier free spring sizes available where reduced opening force is required.
13) Is there a lighter duty concealed closer if my door is under 200 pounds?
Yes. The Norton Rixson 608 Series and the Norton Rixson 700 Series are both center hung overhead concealed closers listed as standard duty for 200 lb doors. The Dorma RTS11 is built for doors up to 250 lbs and is offered in five spring sizes, including BFE and BFI barrier free light opening force options and SZ2 light opening force, so it can also be specified down for lighter openings if you want the heavier case.
14) Can I order just the closer body to drop into an existing concealed installation instead of a full RTS11 package?
If you are replacing only the mechanism in an existing case, the CRL Jackson body-only units are sold that way: 20-101M-01 is regular duty, 105 degree non hold open, 20-101M-03 is regular duty, 90 degree non hold open, 20-101M-09 is heavy duty, 105 degree non hold open, and 20-101M-17 is an adjustable spring power body, 105 degree non hold open. The Dorma RTS11 is supplied as a complete center hung end load closer for aluminum door and frame applications and can be ordered with an added 8563 frame cover plate or a 5mm extended spindle.
15) Does the Sargent 278 substitute for the RTS11?
Not directly. The Sargent 278 is an overhead concealed closer with an exposed arm, so the arm shows at the head of the opening. The Dorma RTS11 is a fully concealed center hung end load unit with no surface applied hardware, which is part of why it is used where vandalism of surface applied closers is a problem. If a concealed track or fully hidden look is the requirement, the 278 will not meet it; the Sargent 268, a heavy duty Grade 1 concealed closer with a cast iron body, is the closer analogue within that brand.
16) When would I need the 5mm extended spindle option on the RTS11?
The extended spindle package is there for openings where the standard spindle does not reach far enough to engage the door's top pivot prep, typically a deeper rail or a shim condition. It is one of three package options alongside standard and the added 8563 frame cover plate.
17) Is a concealed closer harder for my installer to put in on site?
Most of the door and frame preparation for the RTS88 is done before the unit arrives on site, so there is less field machining than people expect from a concealed closer. The trade off versus a surface closer is that the prep has to be right up front, because it is not adjustable after the frame is set.
18) What finishes does the Dorma RTS11 concealed closer come in, and does the cover match?
Seven finishes, and the 8653 cover frame is finished to match: 600 prime coat, 689 aluminum, 690 statuary bronze, 691 dull bronze, 693 black, 695 dark duradonic bronze, and 696 gold. Prime coat is the one to pick if the frame is being field painted to a custom color.
How fast can I get the Dormakaba RTS11 105 NHO SZ3 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 Dormakaba RTS11 105 NHO SZ3 come with a warranty?
Absolutely. The Dormakaba RTS11 105 NHO SZ3 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 Dormakaba RTS11 105 NHO SZ3?
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 Dormakaba RTS11 105 NHO SZ3 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.
!