Double doors Vermont Grey Shades

Composite Double Doors

Learn more about the stylish range of Rockdoor composite double doors, complete with security and thermal performance built into every door we make.

Looking for new strong and secure composite double doors?

Rockdoor is the UK’s leading manufacturer that has been producing high quality  double doors for many years. We can create an entrance that both exudes sophistication and style, whilst keeping you and your family secure.

Many years ago, double doors were considered to be insecure, but that needn’t enter your mind when choosing a Rockdoor double door. In fact, you can get carried away in designing your perfect door, safe in the knowledge your double door will be secure. Rockdoor were the first manufacturer in the UK to be given the Secured by Design accreditation.

Not only will you be provided with a pair of secure entrance doors, but you will also receive a stylish and long-lasting look to your home, with designs and combinations to suit both traditional and contemporary homes.

What is the difference between Rockdoor double doors and French doors?

Whilst they look similar, it’s important we highlight the main differences as its all to do with the lock used.

Double door locks use only one key to operate the main door. When the main door is opened, it then allows you to manually open the secondary door, through the use of finger bolts which are attached to the door leaf. These finger bolts secure the door into the outerframe.

This means if choosing a lever handle, only one door leaf will feature a handle. If choosing a bar handle though, we can still attach these to both door leaf’s as they aren’t connected to the locking system in the same way as a lever handle, but you will have only one escutcheon. To ensure complete security, the secondary door must always have the finger bolts engaged into the outerframe. 

French doors however, allow lever handles to be used on both sides of the doors, as two mechanical locks are used. This also means French doors can’t be chosen with bar handles. For more about French doors, click here.

Although of course, you can opt to include side lights with any of our double door styles!

Are Rockdoor double doors completely secure?

Yes. We have been manufacturing double doors for many years here at Rockdoor, which have kept both families and properties secure. So, if you are looking to create a stunning entrance by using double doors, then you don’t have to worry about them being less secure.

Most door styles in the Rockdoor collection are available as double doors. So, whether you are looking for a solid style, or a style with glass included, then we can tailor our double doors to suit.

Rockdoor double doors feature a key operated lock on one door leaf, with finger bolts on the other door leaf. The key operated lock features 2 steel hooks with 25mm throws, that engage into pocket keeps located on the secondary door. The secondary door then has finger bolts which need manually opening and closing to operate the secondary door. 

We have the utmost confidence that potential intruders will be unable to gain entry to your property by picking or manipulating the lock and that all our Avocet 3* Cylinders come with a £2,000 security guarantee

Are double doors suitable for keeping energy bills low?

Not only do our composite double doors look fantastic and are exceptionally secure, but they are also known for being incredibly thermally efficient.

Part L building regulations were updated in June 2022 and all our doors reflect the new changes to create entrance doors as efficiently as possible for you.

All double door sets with glazing units require a minimum Window Energy Rating of a B, whereas a double door set with no glazing will automatically get a WER of an A.

Which composite double door will you choose?

Two of our most admired composite door styles that are also extremely popular as composite double door sets are Vermont and Indiana, two versatile entrance doors that look fantastic with a wide variety of furniture combinations.

Our Vermont door uses four rectangular mouldings, on either side of the narrow pane of glass other to create a truly contemporary look for the front of your home. The image on the left/right shows an anthracite grey Vermont as a double door set with dual bar handles for a completely modern look!

One of our solid door styles, our Indiana doors feature vertical mouldings which run nearly all the way from top to bottom of the door creating a parallel effect. A fantastic and versatile style that goes well with numerous furniture combinations.

As well as double doors, our full range of Rockdoor’s includes 30 composite door styles, with 14 door colour options to choose from.

View the Rockdoor range of composite doors

The Rockdoor range of composite doors comes in 30 composite door styles, available in 13 different door colours. So no matter if you’re looking for new front doors, back doors or even double doors, French doors or stable doors. There’s a wide range of Rockdoor composite doors available to compliment the look and style of your home.

Rockdoor Brochure and Technical Manual

For more information on our composite doors, download our Brochure and Technical Manual.

Reasons to Choose a Rockdoor

Core Benefits

Rockdoors inner strength is unsurpassed thanks to a combination of a 360° aluminium reinforced inner frame and high-density thermally efficient PU foam. Customers can also choose steel mesh reinforcing for the ultimate in security.

£2,000 Guarantee

Our lock cylinders are burglar proof. A TSOO7 3 star rating, SS 312 Sold Secure Diamond Standard and Secured by Design accreditation see to that, plus our £2,000 security guarantee.

Forced Entry

Rockdoors are designed for strength, it is in our DNA. For over 25 years, we have led the way in composite door development to ensure our doors protect homes and families from unwanted intruders and forced entry.

Hook up with Rockdoor

Strong sintered steel multi point hook locks with a 25mm throw, securely attach the door to the frame to ensure it cannot be forcibly opened by burglars whilst ensuring a better sound and weatherproof seal.

Glass Leading Security

Rockdoors feature S Glaze technology, meaning your glass is locked into your door for life, for added security. It also means no glazing cassettes are used which are prone to fading and discolouration.

Stronger, it's Official!

Rockdoor is consistently found to be one of the most secure doors available in the UK, studies show that a Rockdoor is 35% stronger than a typical GRP door.

Create your own Rockdoor now and get it expertly fitted

Rockdoor 3D door designer

Awards and accreditations