Architectural & Antique Glass
From DIY to castles in the sky, Blenko Architectural Glass can help build your dreams!
Using Blenko Architectural Glass in your project? Contact us to be featured.
Mouth-Blown Sheet Glass
Flat glass used in windows and mosaics
Since 1893 Blenko has produced sheet glass in the ancient and traditional way. Skilled craftsmen mouth blow cylinders of glass, which have the ends removed, are scored, and then heated again. The final heating opens the cylinders into rectangular flat sheets of approximately 18 x 25 inches. To see this age-old and impressive process, visit us in Milton or see our Sheet Glass video.
Because of the non-mechanized and mouth-blown process, the sheets will exhibit artisanal features such as surface undulations, small marks and bubbles. These attributes are considered desirable aspects to the handmade nature and tradition. As an intended part of the handmade process these features do not detract from the glass’ safety or quality and are not considered defects but indications of individual craftsmanship and beauty.
Color Sheet Glass
For stained glass, leaded glass, and other architectural elements.
Our colors are historical and brilliant, and are constantly revolving. As we’re always making more sheets, please contact us to confirm the available quantity.
Colors differ depending on the light. Blenko’s Sheet Glass Sample Pack are available for purchase and allows you to see the colors first hand, please inquire.
Cool colors
$50 per sheet
Warm colors
$55 per sheet
Maximum size 18x25″ (untrimmed)
Packing Cost
$40 per carton
(Approximately 30-35 sheets per carton)
Sheet Glass Sample Sets
$20 a set
Scrap Sheet Glass
$2.50 a pound
Available onsite only
482 light Seabreeze Tableware- Blenko Sheet Glass
482 light Seabreeze Tableware – Blenko Sheet Glass
Clear Sheet Glass
Clear sheets of glass are often used for window restoration and furniture replacement projects, as well as new projects referencing the historical process. These mouth blown glass sheets are handmade in the same historic process as century old originals. Any slight and subtle distortions found in the sheets mimic original glass windows as found before mechanization entered the glass industry.
Maximum size 18″x25″ (untrimmed)
To obtain a custom cut – Contact Us or Request A Quote
There are two types of surface qualities to choose in clear sheet glass:
Rondels
Rounds of glass used as accents in architecture
Each Rondel is individually handcrafted and skillfully constructed. Our hand blown rondels are available in different sizes and various color options, allowing for many project possibilities in restoration, art projects and eye-catching window designs. Sizes range from 2 inches to 14 inches in diameter.


Dalle De Verre
Thick and chunky slab glass
A technique developed in the early 1900’s, dalle de verre uses slabs of colored glass, broken into pieces using a hammer, then assembled – puzzle like- into patterns that are set in resin or concrete. The use of thicker pieces of glass as seen in dalle de verre, reflects and refracts the light with great depth and complexity.
Standard Dimensions:
7 7/8″ x 11 3/4″ x 1″ thick
Hot Colors:
$25 a slab
Cool Colors:
$20 a slab
Anvils (for breaking Dalles)
$100.00
Dalle Hammers
$40 each
Dalle Sample Sets
$30 each set
Packing Costs:
10 Dalles per Carton
$5 per Carton or 5%, whichever is greater
Anvil Carton
$5 per Anvil
Glass Bricks
Solid bricks of glass
Standard:
7 3/4″ x 3 5/8″ x 1 1/2″
$18.00 per Brick
Large:
10″ x 3 1/2″ x 2
$22.00 per Brick
Custom Pavers
Rounds used in sidewalk restorations
Paver Sizes include 1 5/8″ diameter up to 6″ diameter and larger
Standard Pavers
Size / Price
1 5/8″ / $2.75 each
2″ / $3.00 each
2 1/4″ / $3.50 each
Bullseye Panels
Square panes of glass with a circular pattern
Size / Price
4″x 4″ / $45.00
4″x 6″ / $45.00
5″x 5″ / $45.00
5″x 6″ / $45.00
5″x 7″ / $45.00
6″x 6″ / $45.00
Size / Price
6″x 7″ / $55.00
6″x 8″ / $55.00
7″x 7″ / $55.00
8″x 8″ / $55.00
8″x 9″ / $55.00
9″x 9″ / $65.00
Packing Cost:
$5.00 per carton or 5% or whichever is greater for ground shipment
$10.00 per carton for Bullseye Panes
Glass Blanks
Cast shapes of glass
B-9 Flat Square –
3″x3″x3/4″ thick
$10 Crystal | $13 Color
B-12 Square Wedge –
4″x4″x3/4″ thick
$20 Crystal | $22 Color
B-15 Triangle –
3.25″ high x 1″ thick
$10 Crystal | $13 Color
B-3 Flat Round –
3″ diameter x 3/4″ thick
$9 Crystal | $11 Color
B-14 Standing Round Wedge –
5″ diameter x 1/2″-1.75″ thick
$20 Crystal | $22 Color
B-10 Flat Rectangle –
4″x 2.5″x 3/4″ thick
$11 Crystal | $13 Color
B-11 Standing Wedge –
3″x 3″x 3/4″-1.75″ thick
$15 Crystal | $17 Color
B-4 Round Wedge –
4.5″ diameter x 1/4″-7/8″ thick
$12 Crystal | $14 Color
B-5 Round Wedge –
3.5″ diameter x 1/4″-5/8″ thick
$10 Crystal | $12 Color
902 Heart –
3.5″ diameter x .5″ thick
$10 Crystal | $12 Color
201 Star –
$10 Crystal/ $12 Color
Custom Casting
Glass made to your desired size
Custom casting allows us to create mold dimensions based on our customer’s specifications within our ability.
Due to the learning curve on any new project there may be additional charges for the custom casting. Call for price quotes.
Most molds are fabricated here at the factory for an additional fee. We have a selection of molds to choose from in stock.
Casting Abilities
Squares from 2″x2″ up to 14’x14″at 1″ thick
Circles 1 3/8″ diameter up to 16″diameter and 1″ thick
Who else is using Blenko Architectural Glass?
Air Force Academy Chapel
-Colorado Springs, CO
Morman Temple
-Washington, DC
Pro Football Hall of Fame
-Canton, OH
Washington National Cathedral
-Washington DC
New York Hall of Science, World’s Fair 1964
-New York
St Mary’s Cathedral
-San Francisco, CA
Westminster Abbey Benedictine Monastery
-BC Canada
Heinz Chapel, University of Pittsburgh
-Pittsburgh PA
Colonial Williamsburg
-Williamsburg VA
City National Bank Lobby
-Milton WV
Are you using Blenko Glass in your project? Share it with us!
Architectural Glass FAQ
Freight charges calculated on day of shipment.
Freight is FOB Shipping Point, Milton, WV.
All Freight shipments will be collect or on customers freight account.
Prices subject to change without warning. Please call to verify pricing and color availability before placing your order.
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