12×6 Extension Plug Section for your 12×20 Steel Car Garage

Description

🔧 6ft Extension Plug for Duramax 12×20 Steel Car Garage

In Stock Naas.

This is the official 12×6 Centre Extension Plug designed specifically for the Duramax 12×20 Metal Car Garage.

You can Fit  up to Two 6 Foot Extension Plugs.   So You could have a   12×20  or a  12×26  or a 12×32 Foot Long Shed.  The Standard Shed is   12×20 Foot Long.

if you are Considering extending your shed it would be best to do this when first building the Garage.

What’s Included:
• 🏠 Apex roof extension section
• 🧱 Two matching side wall panels
• 🔩 All required supporting steel truss sections

This extension increases the overall length of your garage by 6 feet.

⚠️ Important:
To use this extension, you must already own (or purchase) the Duramax 12×20 Steel Car Garage.

Manufacturer Recommendation:
Duramax advise a maximum of two (6ft) extensions, allowing you to expand your garage from 12×20 → 12×26 → 12×32 feet if required. 🚗🏡

We recommend a Rebated Concrete Floor for your Car Garage

🏗️ What Is a Rebated Concrete Floor for a Steel Garage Shed?

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A rebated concrete floor is a concrete base with a shallow step (lowered channel) formed around the edges—usually at the doorway—so the steel garage sits slightly down into the concrete instead of on top of it.

Think of it as a built-in lip that the shed fits into.

✅ What Does “Rebated” Mean?

“Rebated” simply means:

➜ Part of the concrete is set lower than the rest

So instead of one flat slab, you have:

• Main floor level (where your car sits)

• A lower edge/channel (where the shed walls sit)

🔧 How It Works in Practice

With a rebated base:

✔️ The steel walls sit inside the concrete
✔️ The doorway sits behind a small concrete lip
✔️ Rainwater is deflected away
✔️ Wind can’t blow under the shed

This creates a tighter seal between the shed and the base.

🚗 Why It’s Ideal for Steel Car Garages

A rebated base is especially good for garages because it:

💧 1. Improves Water Protection

• Stops rain blowing under doors

• Reduces floor damp

• Prevents pooling at entrance

🌬️ 2. Reduces Draughts

• Blocks airflow under walls

• Keeps interior drier

• Helps prevent condensation

🛡️ 3. Adds Structural Strength

• Locks shed into place

• Improves wind resistance

• Reduces movement in storms

🔐 4. Better Security

• Harder to lever panels

• Stronger base fixing

• More solid installation

📐 Typical Rebate Size (Guide)

For most steel garages:

(Exact sizes depend on the manufacturer.)

🆚 Rebated Base vs Flat Concrete Base

👉 For car garages, rebated is best practice.

⚠️ Important Installation Note

If you’re planning a rebated base:

✔️ Check your shed’s base drawing first
✔️ Match the rebate to door position
✔️ Allow for anchor bolts
✔️ Use a qualified groundworker if unsure

A wrongly sized rebate can cause fitting problems.

🏆 Summary: Is It Worth It?

For a steel car garage shed, a rebated concrete floor is:

✅ More weatherproof
✅ More secure
✅ More stable
✅ More professional

Bottom Line:

If you’re storing a car, tools, or machinery, a rebated base is strongly recommended over a flat slab.