Internet #100165680

Model #71506

Store SKU #803064

5/8 in. x 20 ft. Gray Caulk Backer Rod for Gaps and Joints

  • Fills large gaps and openings
  • Provides a sound surface for caulking projects
  • For use in expansion joints in driveways and sidewalks
  • See More Details

Frequently Bought Together

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Price:
$396

Product Overview

The MD Building Products 5/8 in. x 20 ft. Gray Caulk Backer Rod for Gaps and Joints acts as a filler in large gaps before applying caulk. It insulates as well as cushions. Use in pavement cracks, wall joints and foundations. Backer rod is easily trimmed to size with scissors.
  • Fills large gaps and openings to prevent drafts
  • Provides a sound surface for caulking projects
  • Recommended for use in expansion joints in driveways and sidewalks
  • Easily trimmed to size with scissors
  • Multiple strands of cord can be twisted together for extra-large gaps
  • Click here to learn more about Eco Options and Energy Efficiency
  • California residents

Info & Guides

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Price
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Ratings
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MaterialPVCOtherOtherOther
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Unspooled Length (ft.)20.020.01017.0
View ProductView ProductView ProductView Product

Specifications

Dimensions

Product Depth (in.)
240
Product Height (in.)
0.625
Product Width (in.)
0.625 in
Unspooled Length (ft.)
20.0

Details

Builders Hardware Product Type
Foam Tape
Color Family
Grays
Color/Finish
Gray
Density
15.0
Material
Other
Returnable
180-Day

Warranty / Certifications

Manufacturer Warranty
No

Questions & Answers

13Questions14Answers

What type of rope caulk can I use for exterior concrete use?

Asked by Jaf November 4, 2020
1
Answer

This backer rod is closed cell and you will be able to use it outside

Can this be used as a filler before chaulking/repairing mortar between stonework?

Asked by Jan August 5, 2020
1
Answer

This will work perfectly for that application.

termites will happily eat through , or set up home in styrofoam . is there any safeguard against...

Asked by hfa January 7, 2020
2
Answers

Thank you for the question. Backer Rod is intended to be used as a backing for caulking projects. The caulking should provide this barrier.

Can I use this to fill the gaps in a fiberglass tub surround before caulking?

Asked by Tiakatz November 10, 2019
2
Answers

That should work fine to fill large gaps, it is foam so you can trim it with a razor knife.

Can I spray paint this black?

Asked by INeedthis October 5, 2018
3
Answers

It is a closed cell foam. Solvents in the paint would probably destroy it.

I see Brad below stated that this comes in sizes up to 4". Where can I buy these large sizes?

Asked by Alan April 8, 2017
1
Answer

1" IS THE LARGES WE HAVE.

Does this come in a larger size diameter like 1" or ??

Asked by Alan April 8, 2017
1
Answer

Hi Alan, unfortunately we only offer the Gray Caulk Backer Rod for Gaps and Joints in 1/2 and 5/8 diameters on Homedepot.com. We appreciate your business and look forward to serving you in the future. Thank you for shopping Home Depot!

Is this appropriate for the gap between the drywall and concrete floor in the interior of the house?

Asked by Ruby February 5, 2017
1
Answer

Yes

Can this product be used on a roof parapet wall ? I would be putting it between the stucco wall a...

Asked by Norma December 29, 2016
1
Answer

This product can be used.

Is this product water resistant? or Weather proof?

Asked by homeowner September 12, 2016
1
Answer

Yes. It is a type of styrofoam material that is meant to be covered-up with a caulking product. Thank you for your interest in our product. M-D Building Products

5/8 in. x 20 ft. Gray Caulk Backer Rod for Gaps and Joints - page 2

Customer Reviews

  • 4.6
    out of 50 reviews
  • 94% recommend this product
5star-icon39
4star-icon5
3star-icon4
2star-icon1
1star-icon1
Filter by:
Showing 1-10 of 50 reviews
Good product that has a variety of different uses. My main use for it is when I have to caulk a r...
Good product that has a variety of different uses. My main use for it is when I have to caulk a rather large gap. I'll first fill the gap with backer rod, then caulk. I get better much results that way. It gives the caulk something to grab to, and the caulk won't shrink too much.
by JJMM
6 people found this helpful
Worked as expected!
I used it to fill the gap in patio concrete - worked very good.
by Patel
Response from Shur-Trim Product ExpertFeb 18, 2021
Thank you for the great review! We appreciate your support and loyalty to our products.
by Jaammu
Rating provided by a verified purchaser...
Rating provided by a verified purchaser
by HomeDepotCustomer
I used this to go between my sliding door and...
I used this to go between my sliding door and storm slider in my bedroom. It faces the ocean and when we get gale force winds, the storm slider plexiglass chatters against the storm door, keeping me awake. This worked perfectly to wedge between the two doors to stop the chattering, which was keeping me awake during a storm.
by MARY
Rating provided by a verified purchaser...
Rating provided by a verified purchaser
by HomeDepotCustomer
I use this product a lot. I like it because...
I use this product a lot. I like it because if you are filling cracks in cement and in some places it is a smaller opening, you can cut this backer rod and fit it in a smaller opening or even double it, if the opening is larger.
by HomeDepotCustomer
Ordered 5/8 in. backer rod online, but they gave 1/2 in.
Ordered 5/8 in. backer rod online, but they gave 1/2 in.
by Redwan
Response from MDBuildingProductsSupportSep 17, 2020
We hate to hear that you received the incorrect product. Please return the incorrect product to the store to exchange it for the correct one.
Rating provided by a verified purchaser...
Rating provided by a verified purchaser
by HomeDepotCustomer
As expected. Nothing to write home about....
As expected. Nothing to write home about.
by KENNETH
Showing 1-10 of 50 reviews