Shop Waterproof Backer Rod

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$4.51
Dynamic | M-D Build Backer Rod, 3/8 Inch X 20 Ft, Black - Floor & Decor | 100548478
Floor & Decor
$4.51
Dynamic | M-D Build Backer Rod, 3/8 Inch X 20 Ft, Black - Floor & Decor | 100548478
Floor & Decor
$3.98
M-D 0.375-In X 20-Ft Closed Cell Backer Rod, Gray | 71464
Lowe's
502
$3.98
M-D 0.375-In X 20-Ft Closed Cell Backer Rod, Gray | 71464
Lowe's
502
$21.99
$23.99
Backer Rod 1/4 Inch, EPDM Rubber Foam Caulk Saver 100' Grey Weather Strip Seal For Concrete Joints, Wall Cracks, Driveway And Joint Fillers.
Amazon.com
89
$21.99
$23.99
Backer Rod 1/4 Inch, EPDM Rubber Foam Caulk Saver 100' Grey Weather Strip Seal For Concrete Joints, Wall Cracks, Driveway And Joint Fillers.
Amazon.com
89
$4.98
M-D 0.5-In X 20-Ft Closed Cell Backer Rod, Gray | 71480
Lowe's
128
$4.98
M-D 0.5-In X 20-Ft Closed Cell Backer Rod, Gray | 71480
Lowe's
128
$4.98
M-D 0.625-In X 20-Ft Closed Cell Backer Rod, Gray | 71506
Lowe's
1K+
$4.98
M-D 0.625-In X 20-Ft Closed Cell Backer Rod, Gray | 71506
Lowe's
1K+
$31.00
0.625 in. X 150 ft. Gray Foam Backer Rod Weatherstrip For Large Gaps And Joints
Home Depot
3
Free shipping
$31.00
0.625 in. X 150 ft. Gray Foam Backer Rod Weatherstrip For Large Gaps And Joints
Home Depot
3
$17.81
1 Closed Cell Backer Rod/Crack Filler (25 Ft) Foam Waterproof New
eBay
Free shipping
$17.81
1 Closed Cell Backer Rod/Crack Filler (25 Ft) Foam Waterproof New
eBay
Free shipping
$5.98
M-D 0.75-In X 20-Ft Closed Cell Backer Rod, Gray | 38384
Lowe's
16
$5.98
M-D 0.75-In X 20-Ft Closed Cell Backer Rod, Gray | 38384
Lowe's
16
$14.99
Foam Backer Rod For Gaps Concrete Crack Filler Joints Foam Gap Filler Caulk Saver Backing Rod Concrete Filler Rope (Black, 3/4 Inch X 33 Feet)
Amazon.com
167
$14.99
Foam Backer Rod For Gaps Concrete Crack Filler Joints Foam Gap Filler Caulk Saver Backing Rod Concrete Filler Rope (Black, 3/4 Inch X 33 Feet)
Amazon.com
167
$13.10
Sika Backer Rod 3/4" X 20' 108130
Indcon Supply Inc.
$13.10
Sika Backer Rod 3/4" X 20' 108130
Indcon Supply Inc.
$14.31
$17.67
5/8"x32.8ft Backer Rod For Foam Rope Filler Roll Seal Weather Strip
eBay
Free shipping
19% off
$14.31
$17.67
5/8"x32.8ft Backer Rod For Foam Rope Filler Roll Seal Weather Strip
eBay
Free shipping
$43.82
1 Closed Cell Backer Rod/Crack Filler (25 Ft) Foam Waterproof New
Everymarket INC
$43.82
1 Closed Cell Backer Rod/Crack Filler (25 Ft) Foam Waterproof New
Everymarket INC
$19.99
Backer Rod Caulk Saver Blue EPDM Backer Rod For Gaps And Joints Backing Rod Concrete Filler Rubber Backer Rod Joint Filler For Driveway And Wall
Amazon.com
31
$19.99
Backer Rod Caulk Saver Blue EPDM Backer Rod For Gaps And Joints Backing Rod Concrete Filler Rubber Backer Rod Joint Filler For Driveway And Wall
Amazon.com
31
$22.39
$22.80
M-D - Polyethylene - Caulk Backer Rod - For Gaps And Openings - Gray - 20 ft.
Target
Free shipping
$22.39
$22.80
M-D - Polyethylene - Caulk Backer Rod - For Gaps And Openings - Gray - 20 ft.
Target
Free shipping
$28.64
$30.59
M-D - Foam - Caulk Backer Rod - For Door And Window - Gray - 10 ft.
Target
Free shipping
$28.64
$30.59
M-D - Foam - Caulk Backer Rod - For Door And Window - Gray - 10 ft.
Target
Free shipping
$19.99
Frienda Backer Rod Foam Rubber Caulk Saver Concrete Expansion Joint Filler Weather Strip Seal For Gaps And Joints (Black,1/4 Inch X 200 Ft)
Amazon.com
171
$19.99
Frienda Backer Rod Foam Rubber Caulk Saver Concrete Expansion Joint Filler Weather Strip Seal For Gaps And Joints (Black,1/4 Inch X 200 Ft)
Amazon.com
171
$175.30
Chemlink SOF-Rod Backer Rod Carton 3/8 X 1400ft F2300
Indcon Supply Inc.
$175.30
Chemlink SOF-Rod Backer Rod Carton 3/8 X 1400ft F2300
Indcon Supply Inc.
$25.53
$26.41
M-D - Polyethylene - Caulk Backer Rod - For Driveways And Sidewalks - Large - Gray - 20 ft.
Target
Free shipping
$25.53
$26.41
M-D - Polyethylene - Caulk Backer Rod - For Driveways And Sidewalks - Large - Gray - 20 ft.
Target
Free shipping
$43.70
1" Closed Cell Backer Rod/Crack Filler 25' Foam Waterproof Save Caulk 1.13" Max
Everymarket INC
$43.70
1" Closed Cell Backer Rod/Crack Filler 25' Foam Waterproof Save Caulk 1.13" Max
Everymarket INC
$11.19
$13.99
Caulk Backer Rod 3/8in X 350ft Foam Filler Sealant Joint Filler Crack
eBay
Free shipping
20% off
$11.19
$13.99
Caulk Backer Rod 3/8in X 350ft Foam Filler Sealant Joint Filler Crack
eBay
Free shipping
$20.94
$21.72
M-D - Polyethylene - Caulk Backer Rod - For Driveways And Sidewalks - Gray - 20 ft.
Target
Free shipping
$20.94
$21.72
M-D - Polyethylene - Caulk Backer Rod - For Driveways And Sidewalks - Gray - 20 ft.
Target
Free shipping
$26.99
MYFAMIREA 20ft Backer Rod 1 Inch EPDM Rubber Caulk Saver Weather Strip Seal Concrete Expansion Joint Filler For Gaps And Joints, Black
Amazon.com
128
$26.99
MYFAMIREA 20ft Backer Rod 1 Inch EPDM Rubber Caulk Saver Weather Strip Seal Concrete Expansion Joint Filler For Gaps And Joints, Black
Amazon.com
128
$28.56
$29.53
M-D - Gray - Foam Caulk Backer Rod - For Driveways And Sidewalks - 180 in.
Target
Free shipping
$28.56
$29.53
M-D - Gray - Foam Caulk Backer Rod - For Driveways And Sidewalks - 180 in.
Target
Free shipping
$14.79
3/8" Diameter X 59' Length Backer Rod Caulk Saver Foam For Cement Caulk, Joints And Gaps And Driveway Crack (Grey)
Amazon.com
63
$14.79
3/8" Diameter X 59' Length Backer Rod Caulk Saver Foam For Cement Caulk, Joints And Gaps And Driveway Crack (Grey)
Amazon.com
63
$145.95
Gordon Glass® 5/8" Closed Cell Backer Rod - 1550 ft Roll
Amazon.com
2
$145.95
Gordon Glass® 5/8" Closed Cell Backer Rod - 1550 ft Roll
Amazon.com
2
$18.99
Coitak 1/4 Inch X 100 ft Backer Rod Foam Rubber Caulk Saver Concrete Expansion Joint Filler Weather Strip Seal For Gaps And Joints Gray
Amazon.com
9
$18.99
Coitak 1/4 Inch X 100 ft Backer Rod Foam Rubber Caulk Saver Concrete Expansion Joint Filler Weather Strip Seal For Gaps And Joints Gray
Amazon.com
9
$244.42
Foam Backer Rod 1-1/8" X 75
Diamond Tool Store
$244.42
Foam Backer Rod 1-1/8" X 75
Diamond Tool Store
$26.51
$27.91
1/8"x131.2ft Backer Rod Home Car Gaps & Joints Foam Caulk Crack Filler
eBay
Free shipping
$26.51
$27.91
1/8"x131.2ft Backer Rod Home Car Gaps & Joints Foam Caulk Crack Filler
eBay
Free shipping
$30.00
7/8" Closed Cell Backer Rod - 100 ft Roll
Amazon.com
24
Free shipping
$30.00
7/8" Closed Cell Backer Rod - 100 ft Roll
Amazon.com
24
$16.99
Frienda Backer Rod Foam Rubber Caulk Saver Concrete Expansion Joint Filler Weather Strip Seal For Gaps And Joints (Grey,1/4 Inch X 50 Ft)
Amazon.com
63
$16.99
Frienda Backer Rod Foam Rubber Caulk Saver Concrete Expansion Joint Filler Weather Strip Seal For Gaps And Joints (Grey,1/4 Inch X 50 Ft)
Amazon.com
63
$28.99
Storystore Backer Rod 1" Diameter X 16.4' Length Black EPDM Rubber Caulk Saver, Foam Backer Rod For Gaps And Joints Concrete Expansion Joint Filler
Amazon.com
98
$28.99
Storystore Backer Rod 1" Diameter X 16.4' Length Black EPDM Rubber Caulk Saver, Foam Backer Rod For Gaps And Joints Concrete Expansion Joint Filler
Amazon.com
98
$14.62
$16.24
1/8" X 65.6 ft Backer Rod Foam Rope Joint Filler Roll Seal Weather
eBay
$14.62
$16.24
1/8" X 65.6 ft Backer Rod Foam Rope Joint Filler Roll Seal Weather
eBay
$12.80
$15.80
1/4" X 32.8 ft Backer Rod Foam Rope Caulk Crack Joint Filler Roll Seal
eBay
Free shipping
18% off
$12.80
$15.80
1/4" X 32.8 ft Backer Rod Foam Rope Caulk Crack Joint Filler Roll Seal
eBay
Free shipping
$17.80
$21.97
Backer Rod 1 Inch X 16.4ft For Gaps And Joints Foam Caulk Crack Filler
eBay
Free shipping
18% off
$17.80
$21.97
Backer Rod 1 Inch X 16.4ft For Gaps And Joints Foam Caulk Crack Filler
eBay
Free shipping
$20.99
Tondiamo Caulk Saver Foam Backer Rod Gap Filler Concrete Rope Caulk Gray Sealant Backing Rod For Fence Wall Gap Floor Window Door Windproof Home
Amazon.com
325
$20.99
Tondiamo Caulk Saver Foam Backer Rod Gap Filler Concrete Rope Caulk Gray Sealant Backing Rod For Fence Wall Gap Floor Window Door Windproof Home
Amazon.com
325
$15.99
Storystore Backer Rod Foam Caulk Saver For Gap And Joint Concrete Filling Gray (1/2" Diameter X 32' Length)
Amazon.com
111
$15.99
Storystore Backer Rod Foam Caulk Saver For Gap And Joint Concrete Filling Gray (1/2" Diameter X 32' Length)
Amazon.com
111
What does a backer rod do? - TimesMojo
What does a backer rod do? - TimesMojo
Jul 7, 2022
timesmojo.com
Backer Rod 1/4 Inch, 50' EPDM Rubber Caulk Saver Backer Rod Foam Strip Rope Seal for Concrete Joints, Wall Cracks, Driveway and Joint Fillers(Gray, 50')
0:21
Backer Rod 1/4 Inch, 50' EPDM Rubber Caulk Saver Backer Rod F…
4 months ago
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The Top 5 Best Backer Rod in 2025 - Must Watch Before Buying!
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The Top 5 Best Backer Rod in 2025 - Must Watch Before Buying!
14 views2 months ago
YouTubeThe Best Picks
BACKER ROD
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BACKER ROD
5.4K viewsMay 16, 2021
YouTubeSwathy Trading Corporation
Backer rod has saved me so much time and money when caulking. Before I knew ahout this product I was wasting so much caulk trying fill large gaps in my home. Learn from me lol #oldhomecharm #caulkinglikeapro #diyhome #homehacks #oneroomchallenge
Backer rod has saved me so much time and money when caulking. B…
557.8K viewsMay 9, 2023
TikTokwestonwillow
Reply to @pig10026 it is foam backer rod. It’s widely used in architectural joints to create a back stop. #backerrod #expansionjoint
Reply to @pig10026 it is foam backer rod. It’s widely used in arc…
5.6M viewsMar 8, 2021
TikTok.awhouse
BackerBead® Installation
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BackerBead® Installation
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HardieBacker installation
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Rover Backer Rod Installer | Albion Engineering Co.
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Don't Put BackerBoard Inside Shower Pan
1.1M viewsApr 5, 2019
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How to Use Backer Rod and Caulk Wide Cracks
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YouTubeToday's Homeowner with Danny Lipford
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Flex Coat Rod Building - Simple Rod Wrap
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How to Make BEST DIY Homemade Rod Tube Case - EASY Build!
212.6K viewsMay 31, 2016
YouTubeTwig 'N' Timber Fishing & Outdoors
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How To Install Tile Backer Boards on Timber Floors
21.8K viewsAug 10, 2021
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How To Seal The Perimeter of Waterproof Flooring
16.4K viewsMar 25, 2021
YouTubeThe Carpet Guys
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Tub and Shower Waterproofing for Tile l PLAN LEARN BUILD
140.7K viewsAug 29, 2021
YouTubeBathroom Remodeling Teacher
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Installing Backer Rod in a Horizontal Joint | Albion Engineering
6.4K viewsFeb 9, 2016
YouTubeAlbion Engineering
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How to Install HardieBacker Cement Board on Walls
251.6K viewsDec 11, 2019
YouTubeJames Hardie
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YouTubeGEORGE G
16:57
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YouTubeEnduring Charm LLC
2:29
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8:25
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Shop Waterproof Backer Rod

Sponsored
About our ads
$4.51
Dynamic | M-D Build Backer Rod, 3/8 Inch X 20 Ft, Black - Floor & Decor | 100548478
Floor & Decor
$4.51
Dynamic | M-D Build Backer Rod, 3/8 Inch X 20 Ft, Black - Floor & Decor | 100548478
Floor & Decor
$3.98
M-D 0.375-In X 20-Ft Closed Cell Backer Rod, Gray | 71464
Lowe's
502
$3.98
M-D 0.375-In X 20-Ft Closed Cell Backer Rod, Gray | 71464
Lowe's
502
$21.99
$23.99
Backer Rod 1/4 Inch, EPDM Rubber Foam Caulk Saver 100' Grey Weather Strip Seal For Concrete Joints, Wall Cracks, Driveway And Joint Fillers.
Amazon.com
89
$21.99
$23.99
Backer Rod 1/4 Inch, EPDM Rubber Foam Caulk Saver 100' Grey Weather Strip Seal For Concrete Joints, Wall Cracks, Driveway And Joint Fillers.
Amazon.com
89
$4.98
M-D 0.5-In X 20-Ft Closed Cell Backer Rod, Gray | 71480
Lowe's
128
$4.98
M-D 0.5-In X 20-Ft Closed Cell Backer Rod, Gray | 71480
Lowe's
128
$4.98
M-D 0.625-In X 20-Ft Closed Cell Backer Rod, Gray | 71506
Lowe's
1K+
$4.98
M-D 0.625-In X 20-Ft Closed Cell Backer Rod, Gray | 71506
Lowe's
1K+
$31.00
0.625 in. X 150 ft. Gray Foam Backer Rod Weatherstrip For Large Gaps And Joints
Home Depot
3
Free shipping
$31.00
0.625 in. X 150 ft. Gray Foam Backer Rod Weatherstrip For Large Gaps And Joints
Home Depot
3
$17.81
1 Closed Cell Backer Rod/Crack Filler (25 Ft) Foam Waterproof New
eBay
Free shipping
$17.81
1 Closed Cell Backer Rod/Crack Filler (25 Ft) Foam Waterproof New
eBay
Free shipping
$5.98
M-D 0.75-In X 20-Ft Closed Cell Backer Rod, Gray | 38384
Lowe's
16
$5.98
M-D 0.75-In X 20-Ft Closed Cell Backer Rod, Gray | 38384
Lowe's
16
$14.99
Foam Backer Rod For Gaps Concrete Crack Filler Joints Foam Gap Filler Caulk Saver Backing Rod Concrete Filler Rope (Black, 3/4 Inch X 33 Feet)
Amazon.com
167
$14.99
Foam Backer Rod For Gaps Concrete Crack Filler Joints Foam Gap Filler Caulk Saver Backing Rod Concrete Filler Rope (Black, 3/4 Inch X 33 Feet)
Amazon.com
167
$13.10
Sika Backer Rod 3/4" X 20' 108130
Indcon Supply Inc.
$13.10
Sika Backer Rod 3/4" X 20' 108130
Indcon Supply Inc.
$14.31
$17.67
5/8"x32.8ft Backer Rod For Foam Rope Filler Roll Seal Weather Strip
eBay
Free shipping
19% off
$14.31
$17.67
5/8"x32.8ft Backer Rod For Foam Rope Filler Roll Seal Weather Strip
eBay
Free shipping
$43.82
1 Closed Cell Backer Rod/Crack Filler (25 Ft) Foam Waterproof New
Everymarket INC
$43.82
1 Closed Cell Backer Rod/Crack Filler (25 Ft) Foam Waterproof New
Everymarket INC
$19.99
Backer Rod Caulk Saver Blue EPDM Backer Rod For Gaps And Joints Backing Rod Concrete Filler Rubber Backer Rod Joint Filler For Driveway And Wall
Amazon.com
31
$19.99
Backer Rod Caulk Saver Blue EPDM Backer Rod For Gaps And Joints Backing Rod Concrete Filler Rubber Backer Rod Joint Filler For Driveway And Wall
Amazon.com
31
$22.39
$22.80
M-D - Polyethylene - Caulk Backer Rod - For Gaps And Openings - Gray - 20 ft.
Target
Free shipping
$22.39
$22.80
M-D - Polyethylene - Caulk Backer Rod - For Gaps And Openings - Gray - 20 ft.
Target
Free shipping
$28.64
$30.59
M-D - Foam - Caulk Backer Rod - For Door And Window - Gray - 10 ft.
Target
Free shipping
$28.64
$30.59
M-D - Foam - Caulk Backer Rod - For Door And Window - Gray - 10 ft.
Target
Free shipping
$19.99
Frienda Backer Rod Foam Rubber Caulk Saver Concrete Expansion Joint Filler Weather Strip Seal For Gaps And Joints (Black,1/4 Inch X 200 Ft)
Amazon.com
171
$19.99
Frienda Backer Rod Foam Rubber Caulk Saver Concrete Expansion Joint Filler Weather Strip Seal For Gaps And Joints (Black,1/4 Inch X 200 Ft)
Amazon.com
171
$175.30
Chemlink SOF-Rod Backer Rod Carton 3/8 X 1400ft F2300
Indcon Supply Inc.
$175.30
Chemlink SOF-Rod Backer Rod Carton 3/8 X 1400ft F2300
Indcon Supply Inc.
$25.53
$26.41
M-D - Polyethylene - Caulk Backer Rod - For Driveways And Sidewalks - Large - Gray - 20 ft.
Target
Free shipping
$25.53
$26.41
M-D - Polyethylene - Caulk Backer Rod - For Driveways And Sidewalks - Large - Gray - 20 ft.
Target
Free shipping