How to Measure Your Door Opening: Ghana Homeowner’s Guide

Knowing how to measure your door opening correctly is one of the most important steps before ordering any new door in Ghana. Get it wrong, and you pay twice: once for the wrong door, and again to fix the problem.

This happens more often than you think. A homeowner in Kasoa orders what the market seller calls a “standard size.” The door arrives. It is either too tight to fit or leaves a visible gap in the frame. The walls were built with sandcrete blocks and hand-applied plaster, so the opening was never perfectly square to begin with.

Good measurements fix this before it starts.

What You Need Before You Start

You do not need professional tools. You need:

• A tape measure (at least 5 metres)
• A pen and paper or phone notes
• A spirit level, if you have one
• A second person to hold the tape

Take clear photos of the opening before you start measuring. Photos help your supplier spot issues you might miss.

Know What You Are Measuring

There are three things to understand:

• Door leaf: The actual panel that opens and closes.
• Door frame or jamb: The fixed structure built around the opening.
• Door opening: The clear space inside the frame, or the raw blockwork gap in a new build.

Most homeowners replacing an existing door will measure inside the current frame. If the frame is damaged or being fully replaced, measure the rough blockwork opening instead.

How to Measure Your Door Opening Step by Step

Step 1: Measure the Width

With the door open, measure the distance between the inside of the left and right frame at three points: top, middle, and bottom. Write down all three numbers. Use the smallest one. This accounts for walls and frames that are not perfectly straight, which is common in Ghana’s residential builds.

Step 2: Measure the Height

Measure from the finished floor (tiles, terrazzo, or concrete) up to the underside of the top frame. Take this measurement on the left side, the middle, and the right side. Again, use the smallest number.

Step 3: Measure the Frame Thickness

This is the depth of the wall at the door opening, from the inside face to the outside face. Measure at the top and bottom. This tells your supplier how wide the door frame needs to be so it covers the wall cleanly on both sides.

Step 4: Note the Door Swing

Stand facing the door from outside. If the hinges are on your right and the door opens toward you, it is a right-hand inward-opening door. Write this down clearly. A wrong swing direction means the door is useless on-site.

Step 5: Photograph Everything

Take photos of the full opening, the hinge side, and the lock side. Send these along with your measurements when requesting a quote.

Ghana-Specific Issues to Watch For

Many homes across Accra, Tema, Adenta, and Kasoa have openings that differ by 10mm to 30mm from top to bottom. This is normal in sandcrete blockwork construction. It does not mean the opening is unusable. It means you must measure carefully and let your supplier know.

Watch for these specific problems:

• Uneven floors: Tile or screed height differences affect door height on one side
• Out-of-square openings: Large differences between top, middle, and bottom measurements
• Thick or double walls: Common in older homes; affects frame depth
• Damaged frames: A bent or rotten frame needs full replacement, not just a new leaf

If your measurements vary by more than 20mm, ask for a professional site visit before ordering.

Key Takeaways

• Always measure width and height at three points. Use the smallest number.
• Include wall thickness and door swing direction in every quote request.
• Ghana’s non-standard openings make careful measuring critical.
• Photos alongside measurements reduce errors and speed up quoting.
• When in doubt, a professional site visit is faster and cheaper than a wrong order.

At Doors Locks and More, we supply and install premium security doors, composite doors, Laminox doors, and PVC doors across Ghana. Send us your measurements and photos, and we will review them and advise on the best door for your space. If you are planning a full upgrade or security door installation, book a professional site visit, and we will verify everything before manufacturing begins.

Contact us on WhatsApp at +233 207 660 961 or email info@doorslocksandmore.com. Our factory is at Community 23, Greater Accra.

Frequently Asked Questions

What is the easiest way to measure a door opening at home?

Use a tape measure to check the width and height at three different points each. Always write down all measurements and use the smallest number for each dimension. Take photos and send them with your measurements.

Do I measure the door or the frame when replacing a door in Ghana?

Measure the inside of the existing frame, not the door leaf itself. If the frame is being removed, measure the raw blockwork opening.

How accurate do my door measurements need to be?

Aim for accuracy within 5mm. Most doors tolerate minor adjustments during installation, but significant errors cause fitting problems that require costly site modifications.

Can I measure my own door opening for a security door?

Yes. Follow the steps in this guide carefully. For high-security doors, Doors Locks and More recommends a professional site visit to verify your measurements before manufacturing begins.

What if my door opening is not perfectly square or level? This is common in Ghana. Note the differences in your measurements and flag them when requesting a quote. Our team will advise on the best approach, and a site visit is available if the variation is significant.