Shaped Windows

Views from the Panes configurator

A custom shape, from both sides.

This round fixed window is one of our curved and geometric options. Its black exterior and white interior are shown on the same configuration. Confirm the full frame geometry before production: a circle, an arch and an angled window each require different dimensions.

Configurator renderings, not installation photographs. Frame size shown: 36 × 36 inches; no nailing flange. Confirm finishes using physical samples.

Made to order by Panes.

The NFRC directory identifies Panes Window Manufacturing Inc. as the manufacturer. Our published reference tables connect each window family and glass package to its CPD number, so you can compare the window you plan to order.

1. Define each opening

   Identify the shape and dimensions as viewed from outside. Confirm the diameter for a circle, or the required radii, side heights and angles for other shapes, on an approved drawing. Keep frame dimensions and installation clearance separate.

2. Review before production

   Match every opening to the approved configuration and itemized price. Confirm the whole-window rating for the selected frame and glass combination.

3. Plan the arrival

   Allow 15–20 business days for window production, then freight transit. Arrange measurement and installation with your contractor; confirm your delivery address, freight charges and receiving access.

A documented Panes project

Panes windows in Paton, Iowa

A documented Panes window project on an existing brick building. Dark frames connect the tall ground-floor openings with the smaller windows above.

Project shown for overall design context. Window models, sizes and glass are specified separately for each opening.

View the original Panes project post

Custom shaped windows with online prices

Start with a half-round, circle or triangle in white/white, without a nailing flange. These are specific made-to-order configurations. Check the dimensions, geometry and glass before adapting a shape to your project.

Double-pane Low-E 272 / clear with argon.

Half Round · 48 × 24 inches

$447.19 USD

Frame dimensions

48 inches wide × 24 inches high

Exterior / interior

White exterior / white interior

Glass package

Double pane · Low-E 272 / clear · argon

Nailing flange

Without nailing flange

View this configuration and customize

Circle · 36 × 36 inches

$455.24 USD

Frame dimensions

36 inches wide × 36 inches high

Exterior / interior

White exterior / white interior

Glass package

Double pane · Low-E 272 / clear · argon

Nailing flange

Without nailing flange

View this configuration and customize

Triangle · 36 × 36 inches

$349.16 USD

Frame dimensions

36 inches wide × 36 inches high

Exterior / interior

White exterior / white interior

Glass package

Double pane · Low-E 272 / clear · argon

Nailing flange

Without nailing flange

View this configuration and customize

Prices are for one complete configured window. Tax, freight and installation are separate. Changing size, finish, glass or accessories changes the price. Confirm final dimensions and installation details before ordering.

Plan your window order

Whole-window performance you can compare

Compare Panes’ certified low-profile and high-profile fixed systems, then match the frame profile and glass package to your shaped-window order. The tables identify the exact fixed-system reference configurations.

U-factor

Heat transfer through the complete window. Lower values indicate better insulation. U.S. values use Btu/(h·ft²·°F); metric equivalents use W/(m²·K).

SHGC

Solar heat gain coefficient, from 0 to 1. Lower values admit less solar heat.

VT

Visible transmittance, from 0 to 1. Higher values admit more visible light.

These reference configurations have no grilles. Each row preserves the NFRC manufacturer code for its frame, glass and gas combination. Select the matching series and glass package, and confirm the CPD number and label for your order. Different glass, grilles, frame systems and joined assemblies can have different ratings.

For Midwest and Northeast projects, compare heat transfer, winter sunlight and summer exposure together. A lower U-factor indicates less heat transfer. A lower SHGC admits less solar heat; a higher SHGC admits more. VT describes visible light transmission. Orientation, shading and local code affect the choice. NFRC ratings alone do not establish ENERGY STAR eligibility.

Download the reference ratings and source links (CSV) · Download the printable reference (PDF)

Compare all Panes window ratings

Match the rating to your made-to-order window

Keep the frame dimensions, operating style, glass, grilles and hardware together in your approved specification. Ask Panes for the applicable certification label or CPD reference when comparing quotes.

Panes projects · Custom-shaped windows

A pointed-arch window in a custom replacement project

A pointed-arch upper window sits over tall rectangular glazing, flanked by two narrow rectangular windows. White frames and interior trim follow the shape of the openings. The original Panes post describes this as a custom-shaped replacement project.

Details from this project

• The pointed-arch glazing sits above the central rectangular unit.
• A crank handle is visible at the lower edge of the left flanking window.
• White frame and trim details coordinate the central shape with the flanking openings.

Planning a similar project?

For a similar shaped opening, supply photographs and a dimensioned drawing or an approved template. Confirm the arch geometry, frame dimensions and the operating units beside it before manufacturing. The proportions in a photograph are not a manufacturing template.