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dormakaba RTS88-Kit 03

Center Hung Side Load, Steel Door and Frame Complete Overhead Closer

Quick Product Details

  • Complete Overhead Closer
  • Standard Duty
  • Center Hung
  • Single/Double Acting
  • Side Load
  • For Exterior and Interior Steel Doors and Frames
Starting price: $713.00 /each

SKU: RTS88-Kit 03 can include all components

Choose Options Below

Dorma RTS88-kit 03 is a complete center hung overhead closer kit for interior or exterior double/single-acting steel doors and frames. A complete package includes a closer body, mounting channel, side load top arm, cover plate, bottom arm and floor bearing.

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Price: $713.00

Start selecting options

Use the menu on the right to select available options.
After all options have been chosen, you can add to cart.

Choose Components:

1) Mounting Channel:

Mounting Channel for Steel Header image
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2) Cover Plate:

Cover Plate image
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3) Side Load Top Arm:

Side Load Top Arm image
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4) Center hung Bottom Arm:

Center Hung Bottom Arm image
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5) Floor Pivot Bearing:

Floor Pivot Bearing image
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6) RTS88 Closer Body:

Overhead Concealed Door Closer Body image
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Choose Finish:

605 - Polished Brass 605 - Polished Brass
625 - Polished Chrome 625 - Polished Chrome
626 - Satin Chrome 626 - Satin Chrome
613 - Dark Bronze 613 - Dark Bronze

Choose Hold Open:

Need Help Deciding? QH chevron down
Hold Open - 90 degrees (HO90)
No Hold Open - 90 degrees (NHO)
Hold Open - 105 degrees (HO105)
No Hold Open - 105 degrees (NHO)

Help Me Decide

Hold open - a mechanism within a closer which allows a door to remain in an open position.

Hold open closers are not permitted for use on fire rated doors.


Choose Spring Size:

Size 3
Size 4

Help Me Decide

  • Size 3
    • Exterior Doors over 2'-6" to 3'-0"
    • Interior Doors over 3'-0" to 3'-6"
  • Size 4
    • Exterior Doors over 3’0”- 3’6”
    • Interior Doors over 3’6”- 4’0”

Maximum door widths and recommended sizes shown are for average conditions. If there are unusual site conditions, e.g. high or exceptionally heavy doors or wind pressure, the next stronger spring size should be selected.



Suited for:
  • Exterior and interior steeldoor and frames

  • 5 year limited warranty

Available Options: Choose Options Above

  • Finish:

  • Hold Open: info icon

    • Hold Open - 90 degrees (HO90)
    • No Hold Open - 90 degrees (NHO)
    • Hold Open - 105 degrees (HO105)
    • No Hold Open - 105 degrees (NHO)
  • Spring Size: info icon

    • Size 3
    • Size 4

Product at A Glance

  • Designed to fit into headers as small as 1 ¾” x 4" for aluminum frames and is also adaptable to wood and hollow metal frames.
  • Features mechanical backcheck
  • Always use an auxiliary stop in conjunction with RTS88 installations.
  • Pressure relief valve protects the closer from abuse due to forced closing
  • An integral positive stop limits door swing to 90° or 105°
  • Closing speeds are controlled by two adjustment valves. Sweep speed area is from 105° to 20°. Latch speed area is from 20° to 0°.
  • Mounting brackets are included to install closer into aluminum or wood headers
Style Complete Overhead Closer
Grade Standard Duty
Application Center-hung
Function Single/Double-Acting
Door Weight Maximum 250 lbs.
Door Width - Exterior - maximum 3'6"
- Interior - maximum 4'0
Door Thickness 1-3/4"



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