The 300 Series stacker door offers a practical and durable solution for homeowners wanting wider openings and better indoor-outdoor flow without compromising on reliability or value. Designed as a non-thermally broken aluminium system, it allows multiple panels to slide and stack neatly behind each other, creating a larger clear opening than a standard slider. The system includes a smart sliding track with a built-in sump to manage debris, and heavy-duty stainless steel rollers capable of handling panels over 300kg — ensuring smooth, long-lasting performance. With clean lines, low-profile thresholds, and proven weather resistance, the 300 Series stacker door is a dependable choice for everyday New Zealand living.