French doors have long been associated with rooms that are elegant, charming, and light-filled. They give a room a visual openness and a dash of continental refinement in an instant. The good news is that you can still enjoy them without having to start from scratch or shell out a hefty sum.
With the use of a very ingenious device known as a pair maker, you can frequently transform your existing single internal doors into chic French doors. This tutorial will explain what a pair maker is, how it operates, what equipment you'll need, how to install it, and why upgrading is beneficial.
Everything you need to know is right here, regardless of whether you're an avid do-it-yourselfer or want to employ a professional.
1. What Is a Pair Maker?
You may combine two single doors to construct a double-door (French door) set by using a pair maker, which is a specifically made timber or timber-effect strip.
In order to provide a clean centre joint where the doors meet, it is usually affixed to the edge of one of the doors. Many pair manufacturers have a rebated design that slightly overflows the opposite door, which helps to prevent light gaps or breezes and gives the door a polished, professional appearance.
Key Features of a Pair Maker:
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Material: Usually timber or engineered wood; some are primed for painting, others veneered for a natural wood look.
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Profile: Rebated edge to create a flush fit.
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Function: Acts as a stop and ensures the doors align correctly when closed.
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Compatibility: Can be used on most standard internal door sizes and styles.
2. Why Convert Single Doors into French Doors?
If you’re wondering whether this conversion is worth it, here are some compelling reasons:
2.1 Aesthetic Appeal
French doors bring a classic and elegant look to both traditional and contemporary homes. The central meeting point of the two doors can be a design feature in itself.
2.2 Increased Natural Light
By adding glazed French doors instead of a single solid door, you can flood adjoining rooms with daylight, making spaces feel larger and more welcoming.
2.3 Better Flow Between Rooms
French doors allow you to open up spaces for entertaining or close them off for privacy without sacrificing style.
2.4 Cost-Effective Upgrade
Using a pair maker means you don’t have to buy a special set of factory-made French doors; you can use two standard doors you already have (or source easily), saving money.
2.5 Flexible Styling
French doors aren’t just for glazed panels—solid or part-glazed doors can also look stunning and suit a range of interior designs.
3. What You’ll Need for the Conversion
Before you begin, gather your tools and materials:
Materials:
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Two matching single internal doors (same height and thickness)
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Pair maker strip (timber or primed MDF)
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Hinges (usually 3 per door for stability)
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Door handles and latches (double-door compatible)
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Screws and fixings
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Optional: weather stripping for exterior French doors
Tools:
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Tape measure
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Screwdriver or drill
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Chisel (for hinge recesses if not pre-cut)
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Spirit level
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Saw (if the pair maker needs trimming)
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Sandpaper
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Paint or finish (if required)
4. Step-by-Step: Converting to French Doors with a Pair Maker
This process assumes you’re replacing a single internal door with French doors in the same frame, but the principles apply to wider openings too.
Step 1: Measure the Opening
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Measure the height and width of your existing door frame.
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Ensure your two chosen doors will fit the width together, accounting for the pair maker.
Step 2: Prepare the Doors
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Make sure both doors are identical in height, style, and thickness.
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If needed, trim them to fit—always remove small amounts evenly from both sides.
Step 3: Fit Hinges
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Decide which door will be the ‘active’ door (the one with the latch).
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Mark hinge positions on the frame and doors (typically 7 inches from the top, 11 inches from the bottom, and one in the middle).
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Chisel hinge recesses and fit hinges securely.
Step 4: Attach the Pair Maker
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Fix the pair maker to the inside edge of the ‘passive’ door (the one that stays closed most of the time).
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Ensure the rebated edge overlaps neatly with the other door when closed.
Step 5: Fit the Doors to the Frame
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Secure the passive door in place first, checking it’s level and plumb.
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Fit the active door next, ensuring it opens and closes smoothly against the pair maker.
Step 6: Install Handles and Latches
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Fit a latch mechanism to the active door.
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For the passive door, consider flush bolts at the top and bottom to keep it securely closed when not in use.
Step 7: Finishing Touches
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Sand and paint/stain the doors as desired.
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Check alignment, and make small adjustments if necessary.
5. Design Ideas for French Doors Using Pair Makers
Pair makers can be used with a huge range of door styles, so you can match them to your interior theme:
5.1 Glazed French Doors
Perfect for connecting a dining room and lounge, or a kitchen and conservatory.
5.2 Solid Panel French Doors
Ideal for a more traditional or private feel, while still enjoying the symmetry of French doors.
5.3 Half-Glazed
A balance between light flow and privacy—great for home offices or snug rooms.
5.4 Painted French Doors
Choose a bold colour to make them a focal point, or stick with white for a timeless look.
6. Benefits of Using a Pair Maker Instead of Buying New French Doors
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Cost Saving: Avoids the higher cost of custom double doors.
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Quick Upgrade: Installation is usually faster than replacing the whole frame.
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Keeps Existing Frame: Less mess and disruption to your home.
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Versatility: Works with most door styles and finishes.
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DIY Friendly: Many keen DIYers can handle the conversion themselves.
7. Maintenance Tips for Long-Lasting French Doors
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Regular Cleaning: Dust and wipe down with a soft cloth.
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Check Hinges: Tighten any loose screws to prevent sagging.
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Repaint or Reseal: Keep the finish fresh to protect against wear.
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Inspect Glazing: If using glazed doors, ensure seals are intact.
8. Common Mistakes to Avoid
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Mismatched Doors: Always use identical doors for a symmetrical look.
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Ignoring Clearance: Allow space for flooring thickness and door movement.
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Weak Fixings: Use proper screws and strong hinges for stability.
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Skipping the Pair Maker: Without it, doors may rattle or look unfinished.
9. FAQ – Converting Single Doors into French Doors with Pair Makers
Q1: Can I use any doors for this conversion?
You’ll get the best results with identical doors in size, style, and thickness. Glazed or solid are both fine.
Q2: Do I need a new frame?
Not usually—most conversions can use your existing frame unless you’re widening the opening.
Q3: Is a pair maker visible?
Yes, but it blends in with the doors and frame for a professional look.
Q4: Can this be done with external doors?
Yes, but you’ll need exterior-grade doors, weatherproof seals, and more robust locks.
Q5: How long does installation take?
With the right tools, it can be completed in a day.
10. Conclusion: A Stylish, Affordable Upgrade
A great method to update your house without having to conduct a whole renovation is to use a pair maker to convert single doors into French doors. You will like the versatility, style, and light that French doors provide, as well as how easy and affordable installation is.
The makeover will undoubtedly improve your décor, regardless of whether you choose sleek modern glazing, rich wood, or traditional white.
For more information about our interior or exterior doors or door accessories, give us a call at 01603 622261 and speak to a member of our expert team today, or email us at sales@doorsuppliesonline.co.uk. We look forward to hearing from you.