11/11/2025
VERY LARGE slab of gray granite- 8 ft x5 ft x 1 ft thick.......estimated 10,000 pounds. This thing is huge, I can load it for you but you will need a heavy duty trailer to haul it. $4500 obo I may be able to deliver it locally if you have a way to unload it. 870.433.4343
More Information:
Manufacturer: Tru-Stone Technologies (a Starrett company): Known as a premier manufacturer of custom precision granite machine bases and accessories, Tru-Stone provides top-quality solutions for precision metrology applications.
Application: A granite precision leveling block of size 8' x 5' x 1' (96" x 60" x 12") is a highly specialized, custom-manufactured product known as a precision granite surface plate or machine base. This item is not a standard off-the-shelf product and must be ordered directly from a specialized manufacturer.
Custom Order: The dimensions specified (8'x5'x1') require a custom manufacturing process.
Thickness: A 1-foot (12-inch) thickness is substantial and contributes to the structural integrity and flatness stability required for precision applications.
Material: Made from high-quality black granite, which is stronger and more stable than light-colored granite, allowing for guaranteed accuracies with less thickness compared to other types.
Accessories: Due to the size and weight, you will need a custom-engineered support system (pedestal and leveling jacks) for stability and to adjust the plate to a perfectly level working height.
Cost: This is a high-value, specialized industrial item. The price will be significantly higher than standard granite countertops. ***A SLAB SIMILAR TO THIS ONE IS LISTED ON EBAY FOR OVER 11K WITH SHIPPING.***
Calibration: A certification of calibration (often to ISO/IEC 17025 standards and meeting GGG-P-463c specifications) will be included with the plate, guaranteeing its accuracy.
***THIS SLAB HAS BEEN CALIBRATED, HOWEVER I DONOT HAVE THE CERTIFICATE.***
