Springs

Extension Spring Lift Containment Hardware Kit for doors up to 100lbs

SKU: ES-HARDWAREKIT-1

Description

Extension Spring Lift and Safety Containment Kit for 7ft and 8ft doors up to 100lbs.

This hardware set is specially designed for garage doors weighing up to 100 lbs and comes equipped with everything you need for installation. The set includes (4) 3" diameter steel extension spring pulleys, capable of supporting up to 100 lbs, (1) pair of 1/8" spring cables and a pair of safety cables specifically made for 7-8ft garage doors with extension springs, and all necessary nuts and bolts. This set of garage door extension springs offers reliable and long-lasting performance, thanks to its durable steel construction. Grab one of these hardware sets for a hassle-free upgrade to your extension springs system.

NOT COMPATIBLE WITH TORSION OR TORQUEMASTER SPRING SYSTEMS.

Includes:

  • 4 - 3" Standard Duty Pulleys for 100# load
  • 1 - Pair 7x7 strand 1/8" Spring Cables 160"
  • 1 - Pair 7x7 strand 1/8" Safety Cables 160"
  • 2 - 3" Pulley Strap w/ Containment Cable Offset & Nylon Bushing
  • 2 - 3 Hole Cable Clip
  • 2 - 3 Hole L Cable Adjusting Clip
  • 2 - S Hooks
  • 2 - 5/16” Eye Bolts
  • 4 - 5/16” Red Coated Nuts
  • 4 - Washers
  • 4 - 3/8" Red Coated Nuts
  • 4 - 3/8" Red Coated Bolts
  • 2 - 5/16" Hex Lag Screws

Specifications:

  • Rated for 100# load on 7' and 8' doors
  • Zinc Plated
  • Heavy duty steel extension spring replacement hardware kit
  • Made of quality materials and built to last

Take a look at this diagram to see the different spring types:

Garage Door Spring Types
Instructions

Here are some great how to guides on extension spring install:

Click here to download instruction manual

Compatibility

Compatible with:

  • Most residential steel and wood 7ft height doors weighing up to 200lbs with standard lift Extension Springs 

NOT COMPATIBLE WITH TORQUEMASTER OR TORSION SPRING SYSTEMS. ONLY EXTENSION SPRINGS!

Reviews
FAQs
Why Do Garage Doors Need Torsion Springs Expert Explains

Why Do Garage Doors Need Torsion Springs? Expert Explains

October 08, 2025 3 min read

Think of your garage door springs like the counterweight in an old elevator. Without them, your door would be incredibly difficult to lift manually, and your garage door opener would burn out trying to handle all that weight on its own.

Read More
What Size Garage Door Spring for a 16x7 Door

What Size Garage Door Spring for a 16x7 Door?

October 07, 2025 3 min read

Here's something that surprises a lot of people: there are usually several different spring combinations that will work for your 16x7 door. You might be able to use a single heavy-duty spring or two lighter springs, depending on your setup and preferences.

Read More
Are Longer Garage Door Springs Really Stronger?

Are Longer Garage Door Springs Really Stronger? The Truth Might Surprise You

October 06, 2025 3 min read

Don't get caught up in the "stronger is better" mindset when it comes to garage door springs. Focus on getting the correct spring instead. Your door will work smoother, last longer, and save you headaches down the road.

Read More
Description

Extension Spring Lift and Safety Containment Kit for 7ft and 8ft doors up to 100lbs.

This hardware set is specially designed for garage doors weighing up to 100 lbs and comes equipped with everything you need for installation. The set includes (4) 3" diameter steel extension spring pulleys, capable of supporting up to 100 lbs, (1) pair of 1/8" spring cables and a pair of safety cables specifically made for 7-8ft garage doors with extension springs, and all necessary nuts and bolts. This set of garage door extension springs offers reliable and long-lasting performance, thanks to its durable steel construction. Grab one of these hardware sets for a hassle-free upgrade to your extension springs system.

NOT COMPATIBLE WITH TORSION OR TORQUEMASTER SPRING SYSTEMS.

Includes:

  • 4 - 3" Standard Duty Pulleys for 100# load
  • 1 - Pair 7x7 strand 1/8" Spring Cables 160"
  • 1 - Pair 7x7 strand 1/8" Safety Cables 160"
  • 2 - 3" Pulley Strap w/ Containment Cable Offset & Nylon Bushing
  • 2 - 3 Hole Cable Clip
  • 2 - 3 Hole L Cable Adjusting Clip
  • 2 - S Hooks
  • 2 - 5/16” Eye Bolts
  • 4 - 5/16” Red Coated Nuts
  • 4 - Washers
  • 4 - 3/8" Red Coated Nuts
  • 4 - 3/8" Red Coated Bolts
  • 2 - 5/16" Hex Lag Screws

Specifications:

  • Rated for 100# load on 7' and 8' doors
  • Zinc Plated
  • Heavy duty steel extension spring replacement hardware kit
  • Made of quality materials and built to last

Take a look at this diagram to see the different spring types:

Garage Door Spring Types
Instructions

Here are some great how to guides on extension spring install:

Click here to download instruction manual

Compatibility

Compatible with:

  • Most residential steel and wood 7ft height doors weighing up to 200lbs with standard lift Extension Springs 

NOT COMPATIBLE WITH TORQUEMASTER OR TORSION SPRING SYSTEMS. ONLY EXTENSION SPRINGS!

Reviews
FAQs