HDB Door Size Guide: Measurements for Main, Bedroom & Toilet Doors
Planning a home upgrade? Understanding the correct HDB door size helps prevent fitting issues and unnecessary costs. In this guide by Go Digital Lock, we explain standard HDB main door, bedroom door, and toilet door measurements, highlight customised door options, share where to purchase quality doors in Singapore, and provide practical installation advice.
Why HDB Door Size Is Important
Selecting the right HDB door size is essential to:
Ensure smooth fitting and proper operation
Reduce adjustment costs during installation
Comply with HDB-approved guidelines
Maintain safety, usability, and accessibility
Standard HDB Door Sizes & Thickness (Verified)
1. Main Door (Entrance)
Width & Height:
Single leaf: 3 ft × 7 ft (approximately 915 mm × 2135 mm)
Double-leaf: 4 ft × 7 ft (approximately 1220 mm × 2135 mm)
Thickness:
Typically, around 45 mm for standard fire-rated main doors
View our main door designs :
2. Bedroom Door
Width & Height:
Standard size: 3 ft × 7 ft (approximately 915 mm × 2135 mm)
Thickness:
Usually 35–36 mm, with a tolerance of about ±1 mm
Explore bedroom door designs:
3. Toilet / Bathroom Door
Width & Height:
Standard size: 3 ft × 7 ft (approximately 915 mm × 2135 mm)
Thickness:
Around 35 mm, commonly made with moisture-resistant materials and installed as bifold or slide & swing doors
How to Measure Your HDB Door Correctly
Use these steps to get accurate measurements:
Width: Measure across the door frame from left to right
Height: Measure from the top frame down to the finished floor
Thickness: Measure the door edge to check compatibility with locks and hardware
Always measure millimetres (mm) for better accuracy.
Customised HDB Door Sizes
If your door opening differs due to renovation works or you prefer a specific design, customised doors are available.
Benefits of customised doors:
Better fit for uneven or altered frames
Greater design options, including glass panels or pet doors
More choices in colours, laminates, and finishes
Compatibility with advanced locks such as digital, WiFi, or fingerprint locks
Browse digital lock-compatible doors:
Things to consider:
Custom doors may cost slightly more
Lead time is usually around 2–4 weeks
Accurate measurements are crucial before ordering
Where to Buy HDB Doors in Singapore
When purchasing HDB doors, choose suppliers familiar with HDB requirements.
Recommended supplier:
Go Digital Lock
Offers standard and customised door sizes
Professional installation services
Free delivery and installation
Visit our showroom or view online:
Before Finalising Your HDB Door
Measure your existing door opening precisely
Use standard sizes as a reference
Confirm if a fire-rated door and permit are required
Select suitable materials and lock types based on daily usage
Conclusion
Knowing your HDB door size before making a purchase ensures a smoother renovation and helps avoid costly errors. Whether you’re replacing a main door, updating a bedroom door, or changing a toilet door, correct measurements make all the difference.
Visit our Tampines showroom or explore our online collection to find the right HDB door size and design for your home.
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