If you’re shopping for custom windows for unusual shapes, standard stock sizes aren’t going to cut it. Not every window replacement needs a truly custom window. If your existing opening is a standard rectangular size, a quality stock-sized window will usually fit the bill. But some homes have openings that stock sizes simply can’t accommodate — and that’s where custom fabrication becomes essential rather than optional.
When You Actually Need a Custom Window
Older Murray homes, especially those built before standardized window sizing became common, often have rough openings that don’t match any modern stock dimension. Additions, dormers, and attic conversions can also create tight or unusually shaped spaces that a standard window won’t fit. In these cases, a custom-fabricated window isn’t a luxury upgrade — it’s the only way to get a window that actually seals and performs correctly.
Common Non-Standard Shapes
Some of the most common shapes that require custom fabrication include half-round or “eyebrow” windows, often used above a door or as a decorative accent; full arch or Palladian-style windows; octagon and hexagon windows, popular in dormers and gables; and triangular windows, frequently used to fill the peak of a gable end. Circular windows, sometimes called “eyebrow” or “porthole” windows depending on their size, are another shape that virtually always requires a custom order.
How Measuring Works for Custom Fabrication
Custom windows start with precise, on-site measurements of the actual opening, not a catalog size. For irregular shapes, an installer may create a template of the opening to send directly to the manufacturer, ensuring the finished window matches the exact dimensions and angles of your specific space. This process takes more time upfront than measuring for a standard replacement, but it’s what makes a proper fit possible in an opening that doesn’t match any off-the-shelf size — which is why choosing an AAMA-certified installer matters most for irregular openings.
What Affects Cost and Timeline
Custom windows generally cost more and take longer to receive than stock sizes, largely because they’re built to order rather than pulled from existing inventory. Irregular shapes like arches and circles typically cost more than custom rectangular sizes, since they require additional fabrication steps. If timeline matters for your project, ask your installer for a realistic lead time up front — custom orders can take significantly longer than standard replacement windows, especially for less common shapes.
Find Custom Windows for Unusual Shapes Today
Murray Window Replacement can help you find the right custom window for your home’s unique openings and shapes. Contact us or call (385) 786-6447 to schedule a consultation.