M-D Building Products 71464 Backer Rod For Gaps and Joints, 3/8-by-20 Feet, Gray
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M-D Building Products 71464 Backer Rod For Gaps and Joints, 3/8-by-20 Feet, Gray

4.6/5
Product ID: 146700517
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✂️Easily trim to size for custom fit
🌦️Weather-resistant for indoor/outdoor durability
🛠️3/8-inch diameter for precise gap filling

Description

🔧 Seal smart, live comfortable — never let gaps steal your peace!

  • PRECISION GAP FILLER - Perfect 3/8-inch thickness seals medium gaps flawlessly
  • EFFORTLESS CUSTOM FIT - Trim or twist to size—installation is a breeze with no adhesives needed
  • ALL WEATHER DURABILITY - Built to withstand rain, sun, and temperature swings without degrading
  • MULTIPURPOSE SEAL INSULATE - Ideal for concrete joints, drafty doors, windows, and expansion gaps
  • FOUNDATION FOR FLAWLESS CAULKING - Creates a sturdy base that enhances caulk adhesion and longevity

The M-D Building Products 71464 Backer Rod is a 3/8-inch diameter, 20-foot long, gray foam rod made from durable, weather-resistant closed-cell polyethylene. Designed for both indoor and outdoor use, it effectively fills medium gaps and joints, providing a reliable base for caulking that improves insulation, airtightness, and draft prevention. Easy to install and customize by trimming, it’s the essential tool for professional-grade sealing and gap filling in construction and home repair.

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Specifications

ManufacturerM-D Building Products
Part Number71464
Product Dimensions35.56 x 20.32 x 5.08 cm; 17.01 g
Item model number71464
Size1 Pack
ColourBlack
StyleBacker Rod
MaterialVinyl, Silicone, Rubber
Item Package Quantity1
Number of Pieces1
Measurement SystemUS
CertificationNon-absorbent, closed-cell polyethylene pre-caulking material
Included ComponentsMD Building - 71464 - 2pk
Batteries included?No
Batteries Required?No
Item Weight17 g

Have a Question? See What Others Asked

how many feet come in a 3 pk?
no 1/4" one? either 20 or 50ft?
can the backer rod be sliced for smaller openings?
Can his be used for exterior windows before caulking?

Reviews

4.6

All from verified purchases

B**S

Great for posting my Dobermans ears thanks x

Great for posting my Dobermans ears thanks x

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Anita G.

Good experience, but the tracking updates could be better.

2 months ago

Farhan Q.

The delivery time was excellent, and the packaging was secure.

2 months ago

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Pooja R.

The customer service exceeded my expectations. Perfect for buying products you can't find elsewhere.

1 week ago

Yusuf A.

Fantastic experience overall. Will recommend to friends and family.

1 month ago

M D Building Products 71464 Backer Rod For Gaps Joints | Desertcart KUWAIT