Leading trade fabricator Customade has expanded its range of aluminium bi-fold doors to include the new SAPA Dualfold sliding folding door system. The move brings more choice to the companys customer base and aims to satisfy the demand for wide openings and large expanses of glass that seamlessly connect the home and garden. - John Adams, Customades sales director, says: We are delighted to offer the SAPA Dualfold door. The bi-fold door has grown in popularity in recent years. It is the only real way to achieve a large glass area that allows maximum light to flood in through an unobstructed opening. It also provides a panoramic view for homeowners, whilst keeping the British weather at bay. Traditional French style doors cannot achieve the width of a bi-fold and sliding patio doors are unable to offer the clear opening that the consumer is now demanding.