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Your Specialist Retailer For French And Bi-Folding Doors

020 3744 0704

What Size French Doors Do I Need?

French patio doors offer an easy way to join your interior and your patio, giving you a spacious and stylish open living area and beautiful views of your garden.

Why Buy French Doors?

External French doors can be a stylish addition to your home. They offer easy access to your patio or deck, and they let light flood into the room easily. They are stylish and visually appealing, and they make it easy for you to enjoy open plan living when you want it, and a more cosy atmosphere in the evenings or when the weather is cooler. If you have some older wooden, folding patio doors or bulky steel doors, then upgrading to some more modern wooden French doors with double glazing will give you better energy efficiency combined with more stylish aesthetics.

French doors are quite hardwearing and will last for many years. Modern frames are light and durable, and are easy to clean. Modern double glazing features thermally gapped panels filled with inert gases for the best possible thermal and noise insulation and energy efficiency.

How to Measure French Doors

When you are measuring for patio doors, you should take the measurements from the inside of the door frame. Take three measurements, and round them up. You should measure:

  • The width, at the top of the frame, the bottom of the frame, and the middle
  • The height – at the left hand side, the right hand side, and the middle.
  • Measure the jamb width, from the back of the exterior trim to the back of the interior trim, so that the door fits flush to the wall.
  • Round up the width and height measurements.
  • Take the largest measurement, assuming there is only a small variance between them.
  • If the variance is large, then this means that the frame is not plum, and may need changed or re-aligned with shims.

What French Door Sizes are Available?

French doors come in a huge range of different sizes – as well as different styles and materials. At Aspire Doors, we have sizes ranging from 1200mm up to 3000mm, which means that you can easil find something that will fit your door opening.

There are several standard sizes within that range, and we can help with non-standard sizes as well, using sidelights or different configurations of panels to match the size of your opening.

The standard height of a French door is 79.5 inches, and such doors are usually 6 feet wide, with the option to have sidelights to expand the width. 

How to Fit External French Doors?

External French Doors usually open outwards and close in towards each other. There is no central jam, and this means that they need to have strong locking mechanisms for security purposes. Because of the way the locking mechanisms work, it is important that the doors are sized appropriately and are fitted correctly.

While anyone can install French doors (you don’t need any highly specialist tools), it is a job that will require a helping hand, and you should study the instructions that come with the door before you start work. Alternatively, hire an expert to do the fitting for you.

If you decide to take on the task yourself, then you will need:

  • Power drill
  • Saw
  • Screwdriver set
  • Hammer
  • Mallet
  • Nails and screws
  • Shims
  • Pry Bar
  • Chisel
  • Tape measure
  • Set Square and level
  • Safety glasses

You will also need the door kit, and a frame and the appropriate hardware (doorknobs, locks, etc)

Installing the Door

Firstly, remove the old frame. Take care not to damage the trim when you do this. Consider marking each trim piece with a pencil so that you can put them back in place properly when you are done.

Use the level and set square to make sure that the door is square. If it is not square, then when you install the new frame use shims to level out each side. It can be tempting to ignore small issues if the frame is not completely square, but this may lead to issues later down the line with a door that sticks or jams, or one that does not lock properly. A few minutes now will save you time and stress later.

If you have opted to have sidelights on either side of the door (or even a single side), then you should put these in place first. Sidelights are common on French doors that have openings more than 1800mm wide.

Hang the door in the frame. After hanging each door, take a moment to make sure that it swings freely and does not stick on the frame or drag across the floor. Adjust the hinges if necessary to get the door moving properly.

Once both doors are in place, make sure that they move freely and do not stick on each other. Again, you can adjust the angle of the doors slightly by tightening or loosening the hinges. Make small adjustments on each side until you find the perfect tightness and angle.

Install the hardware and locking mechanisms. There are many different kinds of lock that can be used with French doors, so read the instructions for your specific locks carefully before you start work.

Modern French doors are double or triple glazed, with safety glass, which means that they should be quite secure if they are installed correctly. You should not need planning permission to install French doors, although if they vary massively from the look or feel of other doors in your area then you may need to check with your resident’s association before fitting them. We have doors in a huge range of different styles to match most properties, however, so you should be able to find something that looks good and that is a good fit for your property.

To find out more about our range of external doors, please contact us today and we'll be more than happy to help.

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Tel: 020 3744 0704    Email: info@aspire-doors.co.uk
Unit 2, Hayleys Manor Farm, Upland Road, Epping Upland, Essex CM16 6PQ