All Convex Glass

We have been bending and fitting antique replica oval convex glass (also known as oval bubble glass or oval domed glass) since the early 1970s, and we currently stock most antique oval sizes along with their modern equivalents. 

Measuring Oval Convex Glass

Convex bubble glass is measured just like flat glass, measuring length and width directly across the glass (not around the bend of the glass). Convex glass generally has a depth of between 3/4" to 1" although deeper bends are possible. The most popular sizes often seem unusual such as the Oval 13 1/2" x 19 5/8". Many people are concerned that these odd sizes are no longer available or will require custom bending fees. However, we stock most of these unusual antique sizes, and most often no custom set up fees are required.

We also custom bend any size of convex bubble glass up to 20" x 24" Oval or 24" Round. Each custom bend requires a paper tracing of the size required. Please mail us this tracing with your name, and phone number. The line you draw will be the line the glass is cut to. Please allow 3-4 weeks delivery after we receive the tracing to produce your custom size convex glass.

History

Although oval picture frames make up less than 5% of all picture frames produced today, this has not always been the case. Over half of the picture frames produced in America by some the largest picture frame factories in the late 1800's up to about 1940 were oval picture frames, round picture frames, or antique octagon picture frames. A large percentage of these frames were used to frame family portraits with convex glass. Today many attics and basements are home to these family heirlooms framed in antique frames and often broken convex bubble glass.

InLine Ovals has been bending convex glass replacements for these images since the early 1970’s and today we continue to manufacture convex glass along with a unique collection of antique replica frames. 

Uses of Oval Convex Glass

Most oval convex glass is used to cover antique portraits in which the photographs themselves were also convex. We produce convex glass to fit our own antique replica frames, and also can supply an oval convex glass replacement to fit actual antique frames. We also regularly produce convex glass replacements to replace broken pieces in clocks, gauges and other instruments.

The Bending Process

Convex Glass is made by laying flat glass into frame molds and heating the glass to temperatures that allow the glass to slump. Longer heat creates a deeper bend. Most bends are between 3/4" and 1" deep.

 

 

Filters
  • Rectangle Convex Glass

    Rectangle Convex Glass #900R

    When looking to frame a treasured family heirloom, rectangle convex glass can add the perfect touch. On this page you can order Rectangle Convex Glass (or Bubble glass), which will fit in any profile of our rectangle frames. It is most commonly ordered...
  • Oval Convex Glass

    Oval Convex Glass #900A

    For a classic framing of a family portrait, Oval Convex Glass is the perfect option. On this page you can order Oval Convex Glass (or Bubble Glass), which will fit into any profile of our oval picture frames. When ordered with an Oval frame from our...
  • Round Convex Glass

    Round Convex Glass #900C

    On this page you can order Round Convex Glass, Circle Convex Glass (or Bubble Glass), which will fit into any profile of our Round Picture Frames or Circle Picture Frames. It is most often ordered with a frame from our Vintage Collection which you can...
  • Octagon Convex Glass

    Octagon Convex Glass #900T

    On this page you can order Octagon Convex glass (or Bubble Glass) which will fit into any profile of our octagon frames. It is one of our most popular shapes, and gives a true antique character to framed family heirlooms when ordered along with our...
  • Hexagon Convex Glass

    Hexagon Convex Glass #900X

    On this page you can order Hexagon Convex glass (or Bubble Glass) which will fit into any profile of our Hexagon frames. Hexagon Convex glass is most commonly used to frame antique portraits and photographs and framed in our Vintage...
  • Oblong Convex Glass

    Oblong Convex Glass#900L

    On this page you can order Oblong (or Double Boiler) Convex Glass (or Bubble Glass). This can add a true vintage feel to a family photograph when ordered along with an oblong (or double boiler) frame from our Vintage Collection which you can see by...
  • Cathedral Convex Glass

    Cathedral Convex Glass #900D

    On this page you can order Cathedral (or Single Boiler) Convex Glass (or Bubble Glass), which will fit into any profile of our Cathedral (or Single Boiler) picture frames. It is ideal for framing old, antique family portraits, especially when ordered...