The Kwikstairs Left Hand Winder Box is specifically designed to integrate with the Kwikstairs Straight Flight Kit, providing an efficient solution for creating a left-hand turn in your staircase. Suitable for staircases up to 900mm in width, this winder box allows for seamless customisation and flexibility in your stair layout. Manufactured to the highest standards, the Kwikstairs Left Hand Winder Box has been tested and fully complies with UK stair regulations, ensuring both safety and durability. This winder box offers a practical addition to your Kwikstairs flat-pack system, helping you achieve a professional-quality staircase installation with ease.