Model # 8810CB

Internet #202867901

Chamberlain 10 ft. Belt Drive Rail Extension Kit
0012381088102

Chamberlain

10 ft. Belt Drive Rail Extension Kit

  • Fully open garage doors up to 10 ft. high
  • Quick-install rail system
  • Ultra-quiet Whisper Drive replacement belt
$61.44 /each

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Product Overview

The Chamberlain 10 ft. Belt-Drive Extension Kit is compatible with Chamberlain's Whisper Drive and Whisper Drive Plus belt-drive garage door openers. It some with a rail extension and replacement belt and can be used with garage doors up to 10 ft. high.

  • For use with garage doors up to 10 ft. high
  • Compatible with Chamberlain whisper drive and whisper drive plus belt-drive models
  • Kit includes rail extension and replacement belt
  • Comes ready to install with complete instructions

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Customer Questions & Answers

13 Questions18 Answers

Customer Questions & Answers

10 ft. Belt Drive Rail Extension Kit
10 ft. Belt Drive Rail Extension Kit

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3 answers

Will this work on a 9' door?

This question is from 10 ft. Belt Drive Rail Extension Kit
Asked by
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November 10, 2013
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Answers (3)

Asked by
Theodosia,MO
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December 10, 2014
Answer: 
Yes. The opener has an adjustment feature that allows for doors that are not exactly 10' long. I installed one on a 9'-9" door the other day.
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Asked by
Albany, NY, USA
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April 29, 2014
Answer: 
I just installed the rail extension on a 9x16 door and it works fine; using a Chamberlain 1.5hp opener.
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Asked by
Tucson, AZ
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November 11, 2013
Answer: 
This will work on a 9' door. The rail will be longer than necessary, however, the travel can be set to only open the 9'.
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2 answers

My drive unit is 154 inches from the garage door to the pulley on my motor, Do I need a 10 ft extender on my new unit?

This question is from 10 ft. Belt Drive Rail Extension Kit
Asked by
Chapin SC
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August 10, 2016
My new door is 8ft. by 16 ft. but the hanging hardware is in center of my garage and the chain drive rail is approx. 154 inches long, what length rail do I need if I go to a belt drive unit? I'm going to someoneelse install it.
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August 11, 2016
Answer: 
The unit goes by the door height so an 8 foot unit is what is needed.
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August 11, 2016
Answer: 
Hi John - Since the garage door opener is 8 ft high, you need the 8 ft extension. Home Depot has that available here, http://www.homedepot.com/p/Chamberlain-8-ft-Belt-Drive-Extension-Kit-8808CB/100431683.
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2 answers

how do you shorten the belt to 9ft

This question is from 10 ft. Belt Drive Rail Extension Kit
Asked by
waterbury ct
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November 17, 2015
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Asked by
Michigan
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January 22, 2016
Answer: 
I did not shorten mine on my 9 foot door. That setting is taken care of with the opener unit.
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November 19, 2015
Answer: 
Hello shotgun, and thank you for your question. Please feel free to contact Chamberlain's Technical Service Center by calling 1-800-528-9131 for more assistance. In most cases, it is not advisable to shorten a belt and rail assembly.
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2 answers

can be attached to the 8 feet that brings the original box, would be a total of 18 feet?

This question is from 10 ft. Belt Drive Rail Extension Kit
Asked by
arizona
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January 15, 2014
buy a chamberlain motor, but you need to open my door to the side, so you need more belt and rail. I need to know if the original can be attached to the extension and if you bring a kit to attach them to the engine that brings in its box
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Answers (2)

Asked by
Theodosia,MO
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Home Improvement Profile: Professional
December 10, 2014
Answer: 
The extender adds enough length to operate a 10' door. actual length is around 12-13'
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Asked by
Tucson, AZ
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January 15, 2014
Answer: 
The 10 foot extension kit includes a short piece of rail that attaches to the included rail. Also a new longer belt. This kit will make the total overall rail long enough to open a 10 foot door.
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  • 2016-10-30 T23:48:01.375-05:00
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Customer Reviews

Rated 4.2 out of 5 by 26 reviewers.
Rated 2.0 out of 5.0 by Extension Instructions were confusing. I was able to figure it out on my own. I don't recommend this product for someone without knowledge of installing garage doors. October 25, 2016
Rated 1.0 out of 5.0 by Cheap junk Very flimsy, cheap product. Save yourself the headache do not buy. Spend the money and get a good one from Clopay. October 18, 2016
Rated 5.0 out of 5.0 by Easy install Extension fit well and was easy to install. The instructions were clear and easy to follow. September 27, 2016
Rated 5.0 out of 5.0 by Used for craftsman door opener. Exactly what I needed,cheaper and easier than dealing with Sears, sadly. August 2, 2016
Rated 5.0 out of 5.0 by Great complete kit This was easy to addon to extend an 8' door opener to a 10' door opener for new metal building. Everything needed was included and fit together effortlessly. Made expanding door opener a breeze. June 29, 2016
Rated 5.0 out of 5.0 by great product easy to install this product is easy to install and works well with the chamberlain opener we have boughten 2 all ready and will probably buy 1 more great product May 17, 2016
Rated 5.0 out of 5.0 by Easily Adapted to 9' Door The 10' Extension Rail Kit was easy to install with the stock 7' Opener Kit. I had installed a 9' door, and after the installation, setting the Door Opener limits was a snap. Great product! April 8, 2016
Rated 5.0 out of 5.0 by Excellent product The Chamberlain quiet drive opener is whisper quiet in operation. The instructions were clear and the assembly went up easily. The wires for the door safety and push button are a little short of you add the rail extension kit so plan to extend. March 8, 2016
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