Choosing the right door and gate size for your home might seem simple, but it makes a big difference in how your entrance looks, functions, and feels. Whether you’re renovating your flat, upgrading your main door, or replacing an old metal gate, understanding standard sizes can help you make the right choice and avoid costly mistakes.
1. Why Knowing Door and Gate Sizes Matters
Every home is different, but doors and gates in Singapore follow certain size standards, especially for HDB, BTO and condo units. Knowing these measurements helps ensure:
- A perfect fit during installation
- Smooth opening and closing without gaps or scraping
- Better security with proper alignment for digital locks and hinges
- Helps with digital lock installation
- A neat, stylish finish that matches your home design
It’s always easier to plan your renovation when you understand what sizes work best for your space.
2. Standard Door Sizes in Singapore
In Singapore, standard doors for HDB and BTO flats usually measure 3 feet wide by 7 feet high (3×7 ft), while double-leaf doors are typically 4 feet wide by 7 feet high (4×7 ft), providing a wider and more elegant entrance.
HDB & BTO Main Door Size
Standard door sizes in Singapore for HDB and BTO units are main door typically 3 feet by 7 feet for single-leaf doors and 4 feet by 7 feet for double-leaf doors.
- Single-leaf: 3ft wide x 7ft high (915mm x 2135mm)
- Double-leaf: 4ft wide x 7ft high (1220mm x 2135mm)
HDB & BTO Bedroom Door Size
The standard size for an HDB and BTO bedroom door is 3 feet wide by 7 feet high (3 x 7ft)
- Standard Size: 3 feet wide x 7 feet high (915mm x 2135mm)
- Bedroom Door thickness: 35 to 36mm
HDB & BTO Bathroom Door Size
The standard HDB & BTO toilet door size is 3 feet wide by 7 feet high (915mm x 2135mm).
Thickness: Approximately 35 mm
HDB & BTO Front Door thickness
Non-fire-rated main door: Thickness is typically 40mm to 45mm
Fire-rated door (30-minute rating): Thickness is usually 44mm to 45mm
Fire-rated door (60-minute rating): Thickness can go up to 54mm
3. Standard Gate Sizes in Singapore
The standard gate sizes in Singapore are 3 feet by 7 feet (90 cm x 210 cm) for single-panel doors and 4 feet by 7 feet (120 cm x 210 cm) for double-panel doors. The standard size is typically determined by the main door: a single-panel main door usually corresponds to a 3×7 ft gate, while a double-panel main door corresponds to a 4×7 ft gate.
4. Measuring Your Door and Gate the Right Way
To measure for a door or gate, measure the opening at three points for width (top, middle, bottom) and height (left, center, right), using the largest width and largest height measurements. For gates, also account for ground slope and hinge placement, and subtract a small allowance for hinges and clearance before ordering. Always check the frame’s depth as well, especially for prehung doors.
Tip: Always double-check measurements with your installer or supplier. At Homedeceo, our team provides free on-site measurement before confirming your design.
5. Choosing the Right Fit for Your Home
When selecting your new door or gate, consider these simple tips:
- Match your home style: Laminate, woodgrain, or modern metal finishes can change the whole look.
- Think about safety: Go for fire-rated doors and durable metal gates for added protection.
- Plan for digital locks: Ensure your door and gate are compatible with smart lock systems.
A well-sized and well-fitted door or gate gives your home a neat, secure, and welcoming feel.
Your main door and gate are the first impression of your home — make sure they fit perfectly. Understanding standard sizes helps you choose designs that blend style, safety, and comfort. Homedeceo ensures every detail fits right, from free measurement to expert installation.