---
product_id: 53625647
title: "Bulldog GD20 Surface Mounted Garage Door Lock"
brand: "bulldog"
price: "NT$5766"
currency: TWD
in_stock: true
url: https://www.desertcart.tw/products/53625647-bulldog-gd20-surface-mounted-garage-door-lock
store_origin: TW
region: Taiwan
---

# Alloy steel strength No drilling required Easy 4-screw installation Bulldog GD20 Surface Mounted Garage Door Lock

**Brand:** bulldog
**Price:** NT$5766
**Availability:** ✅ In Stock

## Summary

> 🔐 Lock in peace of mind with Bulldog GD20 — security made simple.

## Quick Answers

- **What is this?** Bulldog GD20 Surface Mounted Garage Door Lock by bulldog
- **How much does it cost?** NT$5766 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/products/53625647-bulldog-gd20-surface-mounted-garage-door-lock)

## Best For

- bulldog enthusiasts

## Why This Product

- Trusted bulldog brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Sleek Modern Design:** Bold red finish adds a contemporary touch to your garage door.
- • **Complete Locking Kit:** Includes lock, padlock, and key for an all-in-one security solution.
- • **Lightweight Yet Sturdy:** At just 1.69 kg, it’s easy to handle without compromising strength.
- • **Robust Alloy Steel Build:** Durable, tamper-resistant alloy steel ensures long-lasting protection.
- • **Effortless Security Upgrade:** Secure your garage in minutes with just 4 screws—no drilling, no hassle.

## Overview

The Bulldog GD20 Surface Mounted Garage Door Lock offers a modern, no-drill installation solution to secure your garage and home access. Crafted from durable alloy steel with a striking red finish, it includes a lock, padlock, and key, weighing just 1.69 kg for easy handling. Perfect for professionals seeking quick, reliable security upgrades without damaging their doors.

## Description

Bulldog GD20 Surface Mounted Garage Door Lock

## Features

- Simple to fit, just 4 screws ( not included )
- Does not require holes to be drilled in garage door.
- A simple solution to secure the contents of your garage and in some cases access to your home.
- Package Weight: 1.76 kilograms

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Bulldog |
| Part Number | GD20 |
| Product Dimensions | 11.99 x 23.01 x 8 cm; 1.69 kg |
| Item model number | GD20 |
| Size | 12 x 23 x 8 cm |
| Colour | Red |
| Style | Modern |
| Finish | Red |
| Material | Alloy Steel |
| Shape | Round |
| Item Package Quantity | 1 |
| Number of Pieces | 2 |
| Special Features | A simple solution to secure the contents of your garage and in some cases access to your home. |
| Included Components | LOCK, PADLOCK AND KEY |
| Batteries included? | No |
| Batteries Required? | No |
| Item Weight | 1.69 kg |

## Product Details

- **Brand:** Bulldog
- **Special feature:** A simple solution to secure the contents of your garage and in some cases access to your home.
- **Lock type:** Padlock
- **Item dimensions L x W x H:** 12 x 23 x 8 centimetres
- **Material:** Alloy Steel

## Images

![Bulldog GD20 Surface Mounted Garage Door Lock - Image 1](https://m.media-amazon.com/images/I/81Cqv1pQgdL.jpg)

## Questions & Answers

**Q: What size bolts are needed. I bought m8 expansion bolts but they seem to be to big for the holes.**
A: Hi, the GD20 Garage door lock should be used with M6 bolts. Thank you.

**Q: Will it work with block paving**
A: This will work on any solid ground, excellent and solid bit of security. I would line up the drill holes to avoid any grout lines and drill slowly to not crack the block paving.

**Q: Why sell a product without selling the screws to use to fix it in position?**
A: Because it’s up to you what fixings you use. Or fixing bolts

**Q: How does it stick to the garage door?**
A: This doesnt stick to the garage door it’s mounting plate is bolted to the garage floor. It stops the door moving forward/outward —- so is only good for garage doors that pull forward initially then up

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**Shop now:** [https://www.desertcart.tw/products/53625647-bulldog-gd20-surface-mounted-garage-door-lock](https://www.desertcart.tw/products/53625647-bulldog-gd20-surface-mounted-garage-door-lock)

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*Product available on Desertcart Taiwan*
*Store origin: TW*
*Last updated: 2026-03-17*