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Aluminium Technical

An Easifold door can take everything the British climate can throw at it, and then some.

Because of its unique design features and high performance weather seals, an Easifold door with a standard weather threshold has an independently tested British Standard (BS 6375) exposure rating of “1200 special”. This means that an Easifold door can withstand severe weather conditions and give your home long term protection from intense wind and rain.

Easifold doors open so easily because of our unique free glide roller carriage.

The bottom of each door section has its own long wheelbase solid aluminium carriage with four wheels that run inside a low threshold base track. Each wheel is a small work of engineering art. We use nylon type 6-6 for our wheels, a resilient high melting point material that resists degradation due to heat and friction. Each nylon wheel spins around a 6mm hardened stainless steel shaft on its own set of needle bearings along a stainless steel track.

For high strength and low weight, it has to be Aluminium.

Every Easifold door has an aluminium frame of alloy 6063.T6 for a simple reason; it’s the perfect material for a bi-fold door. Thanks to the super lightweight properties of aluminium, our doors are easy to open or close with just the slightest push. And unlike timber or UPVC, they won’t flex or twist.

Aluminium is incredibly long lasting. It doesn’t rust like steel, it doesn’t warp, rot or need varnishing like wood. It’s the perfect base for a wide range of decorative and durable powder coat finishes.

Twenty Years Guarantee

Our industry leading guarantee. It’s about peace of mind.
No one else guarantees their bi-fold doors for 20 years. So why do we?
Is it because of the exceptional care we take in designing our sliding folding doors for durability and long term performance? Is it because we use ultra-high quality components specially designed by us, just for us? Is it because Easifold doors are manufactured in Great Britain by skilled craftsmen? Or is it because we absolutely refuse to compromise on anything we do?

Low thresholds

The base track of an Easifold frame can be sunk into the floor to minimise trip hazards.
Dependent upon the floor material and the floor levels of the spaces on either side of the Easifold door, an exposed lip height as small as 12mm can be achieved thanks to our special enclosed base track design.
Even if it is not possible to sink the base track into the floor, a very low weather proof lip height of 66mm can still be achieved.
Please note that whoever you choose of buy your doors from, a totally flush sill can never be rated against severe weather and this fact will always be noted in the small print. 

We make this fact very clear and have a specially designed severe weather rated sill with a stop that the doors seal against….called a rebated sill.



These are doors; we design them to keep you and your valuables safe.

Like every other door in your home, sliding folding doors need to be secure; they need to safeguard your family and your possessions.
For your protection, our doors are designed with a range of industry leading security features. All Easifold lead door sections have a five point locking system and individual sections are joined by high security hinges. These features combined with anti-drill locks and shoot-bolt intermediate locking make Easifold doors first choice for security.

Easifold doors have enhanced security measures in line with the “Secured By Design” standards established by the Association of Chief Police Officers.

Every lead door panel has a five point locking system with 25mm projection hooks, full height faceplate and adjustable keep. Individual door panels are joined by three adjustable high security hinges. Anti-drill locks and shoot bolt intermediate locking complete our industry leading protection.

Safer for children

The joints between every Easifold door panel have a special safety feature which stops fingers, particularly children’s little fingers, getting trapped.

Our unique interlocking joint gasket is made from a flexible thermoplastic elastomer and shaped so that even when the doors are fully open there is no gap for unwary fingers to get caught in. Thanks to its precision design, even as the door closes there are no exposed sharp edges to cause injury and absolutely no chance of trapping a finger.

Thermally efficient

Easifold doors are designed to maintain a stable temperature. When closed, their very low level of heat transfer will help keep your home warm in the winter and cool in the summer.

Our frames can accept 24mm and 28mm double glazed units for maximum thermal performance. Even the aluminium frame itself is designed to limit heat transfer thanks to a thermal break created by internal polyamide strips.

A recent test of an Easifold door with 24mm double glazing by the British Fenestration Rating Council determined a U value (a measure of thermal transmittance) of only 1.67. The test was carried out in line with ISO 10077-2.

Slim sightlines

Our unique 75mm frame profiles are narrower than most bi-fold doors, which means we can use larger glass panels, which in turn means more light and better views.

Not every manufacturer can make an ultra-slim frame. Easifold’s exclusive design and the precision manufacturing tolerances we employ at our High Wycombe factory are the key factors in a frame that is narrow, lightweight and very strong.

The high performance materials of an Easifold door need only the smallest amount of care to keep them looking brand new and working perfectly.

Just wiping down the powder coated frames with soapy water occasionally, applying a silicon spray to the rubberised gaskets once a year and lubricating the locks and hinges twice a year is all that is needed.

The free glide opening system requires no maintenance other than using a vacuum cleaner once a week to keep the track debris free during the months the doors are used.