Dorma RTS05 Overhead Concealed...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,374.00
$960.63
Dorma RTS88 Series - RTS05 Overhead Concealed Door Closer, Center Hung Side Load, Double or Single Acting, Wood Door and Frame Application (Non-Handed)

Dorma RTS05 Overhead Concealed Door Closer, Center Hung Side Load, Double or Single Acting, Wood Door and Frame Application (Non-Handed)

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Model: RTS05 105 NHO SZ3 693
$1,374.00
$960.63
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$1,374.00
$960.63
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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 Side; Wood Door and Frame
Product Model:
RTS05
Door Hand Direction:
Non-Handed
Product Category:
Door Controls
Department:
Door Hardware

Dormakaba RTS05 105 NHO SZ3 693 – Frequently Asked Questions

1) Will the Dorma RTS05 concealed closer work on a wood door and wood frame?
That's exactly what the RTS05 package is built for. It's the center hung side load version of the RTS88 concealed closer set up for wood door and wood frame application. The RTS88 body itself installs in wood, aluminum, or hollow metal, but the RTS05 is the wood door and frame package specifically, so the prep and hardware you get match that opening. If your opening is aluminum or hollow metal, you want a different package in the series.
2) How heavy a door can the Dorma RTS05 overhead concealed closer handle?
Up to 250 lbs. That covers most solid core wood entrance doors and heavier stile-and-rail work. If your leaf is over that, the RTS05 is the wrong closer. Among concealed closers of this type, the Norton Rixson 73 Series center hung double acting unit is also rated to 250 lbs, while the Rixson 608 and 700 Series center hung closers are rated to 200 lbs.
3) Do I have to order the Dorma RTS05 concealed closer left hand or right hand?
No handing to specify. The RTS05 is non-handed, and it works single acting or double acting, so one part number covers a door that swings one way and a door that swings both. For a property manager stocking spares across a building, that means one closer on the shelf instead of a left and a right.
4) Which spring size should I order on a Dorma RTS05 closer for a 3'-0" exterior door?
Spring size is the main thing you have to get right when ordering. SZ3 is the standard closing force and covers 3'-0" to 3'-6" interior doors and 2'-6" to 3'-0" exterior doors, so a 3'-0" exterior leaf lands on SZ3. SZ4 is the strongest, for 3'-6" to 4'-0" interior and 3'-0" to 3'-6" exterior. SZ2 is a light opening force option. If the opening has to meet a reduced opening force requirement, order BFE for a 3'-0" exterior door or BFI for a 3'-0" interior door.
5) What is the closest equivalent to the Dorma RTS05 for a center hung double acting door?
The Norton Rixson 73 is the nearest match. The RTS05 is a center hung side load overhead concealed closer rated for a 250 lb door, non-handed, and configurable single or double acting. The Rixson 73 is a center hung double acting overhead concealed closer with a cover plate, also rated to 250 lbs, and is a heavy duty Grade 1 unit. Both mount concealed in the head frame and swing the door from a center pivot, so an opening prepped for one is prepped the same way for the other. The practical difference is configuration: the RTS05 is ordered single or double acting from the same non-handed body, while the Rixson 73 is a double acting unit.
6) My door is offset hung, not center hung. What overhead concealed closer should I use instead of the RTS05?
Use the Norton Rixson 0608, which is an offset hung overhead concealed closer for aluminum doors up to 200 lbs and is a standard duty unit. The Dorma RTS05 is a center hung side load closer for wood door and frame applications, so it is pivoted at the centerline of the door and will not work on an offset pivot prep. Hanging method is the first thing to confirm on a concealed closer, because the arm geometry and the frame cutout differ between center hung and offset hung and neither retrofits the other. Note the weight difference as well: the RTS05 handles a 250 lb door, the 0608 is rated to 200 lbs.
7) I need a Grade 1 overhead concealed closer for a spec that calls one out. What options are there alongside the Dorma RTS05?
Four peers in the concealed closer range carry a stated Grade 1, all heavy duty: the Sargent 268 with a cast iron body, the Sargent 269 with 180 degree opening capability, the Sargent 278 with an exposed arm, and the Norton Rixson 73 center hung double acting unit with a cover plate. For an institutional submittal where the drawing calls the grade out by name, those are the units that answer it directly. The Dorma RTS05 is a commercial closer for a 250 lb door, non-handed, single or double acting, and is specified by spring size and cushion angle rather than by a stated grade.
8) I need the door to swing open past 105 degrees. What closer handles that instead of the RTS05?
The Sargent 269 is a heavy duty Grade 1 overhead concealed closer with 180 degree opening capability, which suits an opening that has to swing wide, such as a corridor door that needs to clear equipment or a gurney. The Dorma RTS05 is ordered with a cushion at either 90 degrees or 105 degrees, which is the point where the unit cushions the swing, so the 105 degree cushion is the widest setting it comes in. Confirm the wall and any adjacent trim actually allow the wider swing before specifying the 269, since a concealed closer will not stop the door short of its cushion point on its own.
9) Will a CRL Jackson overhead concealed closer body drop into a Dorma RTS05 installation?
Treat that as a different product, not a swap. The CRL Jackson 20-101M units are sold as a closer body only, in regular duty, heavy duty, and adjustable spring power versions, in 90 degree and 105 degree non hold open functions. The Dorma RTS05 is ordered as a complete center hung side load unit for wood door and frame application, with the finish, spring size, cushion angle, hold open choice, and standard or 5mm extended spindle all selected at order. A body only part assumes you are reusing the existing cement case, spindle, and arm from a matching Jackson installation. If you are replacing a Dorma unit, order the complete RTS05 rather than a body from another line.
10) Can I get a Dorma RTS05 concealed closer with hold open?
Yes, hold open is an option you pick when you order, and there's a no hold open version too. Pair that choice with the cushion stop setting, which comes at 90 degrees or 105 degrees. The cushion angle is where the closer cushions the swing, so pick it against whatever the door can actually clear, a return wall or an adjacent leaf will decide that before the closer does.
11) What is the 5mm extended spindle option on the Dorma RTS05 for?
The RTS05 ships either standard or with a 5mm extended spindle. The extended spindle gives you additional spindle projection where the closer sits deeper relative to the top of the door than a standard install allows, which is a real possibility on wood doors where the head detail and door construction vary. Decide it off your actual head section before the order goes in, because it isn't something you can swap on site.
12) Should I use an overhead concealed closer or a surface mounted closer on a problem entrance?
An overhead concealed unit like the RTS88 series makes sense in two situations. First, when a surface applied closer would interfere with the architectural design or simply isn't suitable for the opening. Second, on entrances that keep getting vandalized, since there's no body or arm hanging in the head for someone to pull on. The tradeoff is prep: a concealed closer needs the head and door machined for it. The upside for a contractor is that most of that door and frame prep happens before the unit goes in, so there's less machining on site.
13) What else could I use instead of the Dorma RTS05 for a heavy commercial entrance?
Staying with center hung concealed closers, the Norton Rixson 73 Series is a heavy duty Grade 1 center hung double acting unit rated to 250 lbs and comes with a cover plate. Sargent's concealed closers are all heavy duty Grade 1 as well: the 268 has a cast iron body, the 269 opens to 180 degrees, and the 278 uses an exposed arm. The Sargent 269 is worth a look if the opening needs to swing back further than the RTS05's 105 degree cushion setting. Note that several CRL Jackson concealed closers are sold as body only, so they won't include the rest of the package.
14) Which Dorma RTS05 spring size do I order for an accessible entrance with a reduced opening force requirement?
Two barrier free spring sizes cover that. BFE is the barrier free light opening force option for exterior doors at a 3'-0" door width, and BFI is the same for interior doors at 3'-0". Both trade closing power for a lighter pull, so they're keyed to that 3'-0" width, a wider leaf pushes you back toward SZ3 or SZ4.
15) Can one Dorma RTS05 closer handle a pair of doors that swing both directions?
Each closer runs one leaf, so a pair needs two units. What the RTS05 does give you on a double acting pair is that it's non-handed and works single or double acting, so both leaves take the same part number and the same spring size if the leaves match. Order the cushion angle and hold open the same on both unless one leaf has an obstruction the other doesn't.
16) Is there a lighter duty center hung concealed closer than the Dorma RTS05?
Yes. The Norton Rixson 608 and the Norton Rixson 700 are both center hung overhead concealed closers rated for 200 lb doors, and both are standard duty units. The Dorma RTS05 is rated for a 250 lb door. If the leaf is a normal interior wood door well under 200 lbs, either Rixson standard duty unit covers the opening; if the leaf is a heavy exterior or oversized door, the 250 lb rating on the RTS05 is the one to hold to. A property manager standardizing across a building often picks by the heaviest leaf in the set so one part number covers every door.
17) What is the difference between a CRL Jackson adjustable spring power closer and ordering a spring size on the Dorma RTS05?
Two different ways of setting closing force. The CRL Jackson 20-101M-17 is an adjustable spring power overhead concealed closer body, 105 degree non hold open, where the power is dialed in at the unit. The Dorma RTS05 has the spring selected as a fixed size at order: SZ2 for light opening force, SZ3 for standard closing force on 3'-0" to 3'-6" interior or 2'-6" to 3'-0" exterior doors, SZ4 for the strongest closing force on 3'-6" to 4'-0" interior or 3'-0" to 3'-6" exterior doors, plus BFI and BFE barrier free light opening force springs for interior and exterior 3'-0" doors. If you know the leaf width and whether it is interior or exterior, the fixed spring size is straightforward to pick; the barrier free springs are the ones to look at when opening force at the door is the governing requirement.
18) The Sargent 278 has an exposed arm. Does that matter if I picked the Dorma RTS05 for looks?
It matters a great deal. The Sargent 278 is a heavy duty Grade 1 overhead concealed closer with an exposed arm, so part of the mechanism is visible at the head of the door. The Dorma RTS88 family, which the RTS05 belongs to, is built for openings where a surface applied closer would interfere with the architectural design, and it is also chosen as a replacement at entrances where surface applied closers get vandalized. If the reason for going concealed was a clean head detail or keeping the hardware out of reach, an exposed arm unit changes both. The Sargent 268, with its cast iron body, is the other heavy duty Grade 1 Sargent option to weigh.
19) I need a hold open concealed closer. Which units offer it?
The Dorma RTS05 is ordered with hold open as a yes or no option on the same non-handed body, at either a 90 degree or 105 degree cushion. Among the peers, the CRL Jackson 20-101M bodies are non hold open closers across the regular duty, heavy duty, and adjustable spring power versions, in both 90 degree and 105 degree, so they do not cover a hold open requirement. If the opening needs to stand open for loading, moving, or ventilation, specify hold open on the RTS05 at the cushion angle that matches the swing the wall allows.
20) My door is aluminum, not wood. Does the Dorma RTS05 still apply?
The RTS05 is packaged for center hung side load wood door and frame application, and the RTS88 family it belongs to installs in wood, aluminum, or hollow metal doors and frames for single and double acting doors. For an aluminum storefront leaf specifically, the Norton Rixson 0608 is an offset hung overhead concealed closer called out for aluminum doors up to 200 lbs. Which one fits comes down to how the leaf is hung: center hung points to the RTS05 packaging, offset hung on aluminum points to the 0608.
21) What finishes does the Dorma RTS05 concealed closer come in?
Nine, and they cover the exposed cover plate rather than the closer body, which is buried in the head. The list runs 600 prime coat, 625 bright chrome, 689 aluminum, 690 statuary bronze, 691 dull bronze, 693 black, 695 dark duradonic bronze, 696 gold, and 701 stainless steel. If you're matching other openings in a building, 689 aluminum and 693 black are the ones that most often line up with existing storefront and dark bronze packages, and 600 prime coat is there when the piece is getting painted to match a wood frame.
22) Is the Dorma RTS05 concealed closer rated for commercial use or is it a residential closer?
Commercial. The RTS05 is a commercial door closer, sized for leaves up to 250 lbs, and the spring size range runs from barrier free light opening force up to SZ4 for 3'-6" to 4'-0" interior doors. That's entrance and institutional traffic, not an interior residential passage door.
23) What finish options should I compare when matching a concealed closer to existing hardware?
The Dorma RTS05 covers a wide finish range: 600 prime coat, 625 bright chrome, 689 aluminum, 690 statuary bronze, 691 dull bronze, 693 black, 695 dark duradonic bronze, 696 gold, and 701 stainless steel. That breadth matters when standardizing a building, because the visible portion of a concealed closer is small but still needs to read with the pulls and pivots on the same leaf. For contrast, the CRL Jackson 20-101M regular duty and heavy duty units are closer bodies supplied in brown, which is a housing color on a part that sits inside the frame rather than a specified architectural finish.
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Does the Dormakaba RTS05 105 NHO SZ3 693 come with a warranty?
Absolutely. The Dormakaba RTS05 105 NHO SZ3 693 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
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