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Purchase various sizes of telescope mirror blanks from our stock. We provide 4 inch to 12 inch mirror blanks in standard 3/4" thickness, and larger telescope mirror blanks up to 18 inches in 1" thickness. We can also provide 1" thick blanks in any of the 3/4" thick standard diameters below. All of the mirror blanks we sell are individually tested to be free of internal strain. Please note that some chipping on the back side of the blanks at the edge is inevitable in our manufacturing process - always 1/4" or less, so they may be ground out with a 1/4" bevel. The front of the blanks will have no edge chips which will survive past your first 1/8" standard bevelling.

Order with the payment buttons next to the desired blank - a Paypal account is NOT required.

Standard telescope mirror blanks:

4.3 Inch Mirror Blanks, 3/4" Thick: $17.95 ea + Shipping/packing($9);
Shipping prices are to the UNITED STATES. Foreign orders, please Write for a shipping quote before ordering!


Combined shipping is possible - Write

5.7 Inch Mirror Blanks, 3/4" Thick: $22.95 + Shipping/packing(12);
Shipping prices are to the UNITED STATES ! Foreign orders, please Write for a shipping quote before ordering!


Combined shipping is possible - Write

5.9 Inch Mirror Blanks, 3/4" Thick: $24.95 + Shipping/packing(12);
Shipping prices are to the UNITED STATES ! Foreign orders, please Write for a shipping quote before ordering!


Combined shipping is possible - Write

6.1 Inch Mirror Blanks, 3/4" Thick: $27.95 + Shipping/packing(12);
Shipping prices are to the UNITED STATES ! Foreign orders, please Write for a shipping quote before ordering!


Combined shipping is possible - Write

7.6 Inch Mirror Blanks, 3/4" Thick: $31.95 + Shipping/packing(14);
Shipping prices are to the UNITED STATES ! Foreign orders, please Write for a shipping quote before ordering!


Combined shipping is possible - Write

8 Inch Mirror Blanks, 3/4" Thick: $34.95 + Shipping/packing(14);
Shipping prices are to the UNITED STATES ! Foreign orders, please Write for a shipping quote before ordering!


Combined shipping is possible - Write

8.4 Inch Mirror Blanks, 3/4" Thick: $39.95 + Shipping/packing(17);
Shipping prices are to the UNITED STATES ! Foreign orders, please Write for a shipping quote before ordering!


Combined shipping is possible - Write

10 Inch Mirror Blanks, 1" Thick (3/4" thick blanks are temporarily out of stock): $69.95 + Shipping/packing(17);
Shipping prices in the checkout are to the UNITED STATES ! Foreign orders, please Write for a shipping quote before ordering!


Combined shipping is possible - Write

12 Inch Mirror Blanks, 3/4" Thick: $59.95 + Shipping/packing(19);
Shipping prices in the checkout are to the UNITED STATES ! Foreign orders, please Write for a shipping quote before ordering!


Combined shipping is possible - Write
*** Note: 12 inches is a rather large diameter for a 3/4" mirror blank - long focal lengths recommended. Don't be deterred, just pay attention to the thin mirror making principles on our Thin Mirror Blank Grinding Tips page and elsewhere on the web - lots of great help and encouragement out there from fellow ATM's!

12 Inch Mirror Blanks, 1" Thick (limited supply!): $89.95 + Shipping/packing(19);
Shipping prices in the checkout are to the UNITED STATES ! Foreign orders, please Write for a shipping quote before ordering!



16 Inch Mirror Blanks, 1" Thick (limited supply): $159.95 + Shipping/packing(39);
Shipping prices in the checkout are to the UNITED STATES ! For foreign orders, please Write for a shipping quote before ordering!



Odd Sizes = discounts: Don't really care if yours is an 11-3/4 inch scope instead of a 12 inch? See our Odd Sized / Discount Mirror Blanks page to find odd sized blanks we made which will save you $$$

Cosmological Cosmetics: During manufacture or handling, the surfaces of mirror blanks can acquire some small scratches or slight chipping at the edge, neither of which will have any effect on your mirror because you will be grinding out any scratches and beveling your edges anyway. Blanks deemed to have more than average cosmetic imperfections will be placed on our Discount Mirror Blanks page, saving you even more on your glass mirror blanks and mirror grinding tools. Clearance mirror blanks are tested for internal stresses too - all the blanks we sell will make you a wonderful telescope mirror!

For a complete mirror making KIT, with all abrasives, polishing compounds, pitch, and grinding tool included, please see our Buy Telescope Mirror Kits website for great prices on plate glass telescope mirror making kits.