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Bi-Folding Doors

Measuring up Guide

To ensure your satisfaction with your Viva Doors your prepared opening should be carefully measured, symmetrical and square.

The other important feature is to make sure it is structurally sound, your builder or a structural engineer can advise on this.

To order however you will not need to be quite as precise. We will send you a guide and confirmation that will make sure, once you have ordered, that your ordering details were correct. Only following that will we commence manufacture. Here are some drawings that may help you to measure up:

Ideally your opening should have a flat level base, vertical sides and a structurally sound head, small variations can be accommodated.

If the base and head are quite level and the sides perpendicular then the opening will be square, you can check this however by measuring diagonally from corner to corner, our drawings shows that if A and B are the same then the opening is square.

Take measurements of the width, perhaps three at different levels of the opening and select the narrowest, then complete the width box in the configurator in millimetres. The height is measured from the level on which the baserail of the frame will sit up to the underside of the head. Take a selection (shall we say three) of height measurements choosing the lowest then complete the ‘height’ box in the configurator in millimetres.

The aperture dimensions are taken from the exterior face of the building where the door frame is usually located. Measurements are taken from the surrounding brickwork or blockwork not from any interior plaster face.

The height is taken from the wall, foundation or slab on which the track will sit. Ideally use solid bricks for the threshold or in the instance that these are not available any holes or frogs must be filled with concrete. There is a choice of how to treat the external ground level that will be covered in our order acknowledgment.

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Use our online configurator to design your perfect door and get an instant quote to your inbox. If you have any questions, simply give us a call.

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Folding Door Hinges

There are four extra strong aluminium black hinges affixed to each door with stainless steel screws ensuring that the doors do not sag and that when to be opened or closed only the lightest touch is needed.

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Safe & Secure

Not only is our lock of the highest specification and if forced are fail safe, they are also suited to allow a single key to open any door. On intermediate doors shoot bolts operated by the flush handles disable any attempt to lift the doors off the track whilst the master door has a 5 point locking system comprising of a combination of mortice, hook and mushroom locks for complete peace of mind.

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The tracks are slim sections, each with a thermal break designed to keep your home snug. They are only 20mm deep but they have an added upstand of 30mm that keeps out driven rain and prevents water damage to your internal floors.

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Stylish Handles

These slim and elegant modern handles and lock plates which are provided both inside and outside the master door, these are in satin black as standard but are also available in satin white or chrome upon request. The cylinder locks are suited for greater convenience.

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Fold-flat D Handle

An inconspicuous black handle located which folds back against the frame assists with opening and closing the doors.

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Engineered runner (bottom)

The runner at the base which carries the downward loading of the doors is engineered with stainless steel wheels to operate smoothly against the steel base rail insert ensuring long life and security.

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Engineered runner (top)

The engineered runner at the head of the doors ensures that the doors are also smooth running and also adds to the security preventing the doors from being lifted from their frames.

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Fresh air ventilation

In modern air tight homes we are required to offer trickle ventilation to all our doors. These vents may be closed to keep out the very worst of the weather but normally allow fresh air into your home in a controlled manner, helping to keep you healthy.

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Slim sight lines

Designed to reach the highest thermal standards the door frames are not only strong and super functional but also slim and elegant. Where your doors meet the two frames together with the hinge mounts and gasketry designed to keep out inclement weather are a total of 131mm wide and amongst the slimmest on the market.

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Flat handles

Flat handles located on the inside face of the folding doors operate shoot bolts into the top rail and bottom runner for extra security.

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Double glazing - top specification

Our standard but highly specified glazed units are filled with argon gas to prevent condensation and keep out the cold. Each Low-e unit has a warm edge spacer for added insulation and is toughened safety glass as standard. If you require a specialized type of glass we are here to help and recommend.

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