Your Dry Erase Experts Est. 1987

OptiMA™ Large XY Combination Grid Board

SKU: GR-GC-408
Our Price:
Made in
the USA
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Large XY Grid Boards
Large XY Grid BoardsLarge XY Grid BoardsLarge XY Grid Boards

An extra large XY Cartesian grid board from OptiMA Inc. A large 4' x 8' dry erase board with XY grid on the left side of the board and a plain white dry erase writing surface on the right side of the unit. Why didn't someone think of this earlier?

Now you have space to teach at the same time show examples or plot coordinates to solve your equations on one dry erase board.

You have the option of a magnetic receptive grid board which will allow you to use magnets and other magnetic accessories or if you don't care about that feature then you can select the slightly more economical non-magnetic option which comes with the exact same excellent writing surface but just won't accept magnetic accessories.

Each unit have the same heavy duty satin anodized aluminum trim and full-length deep marker tray.

OptionShipping MethodShipping
Sale Price
GR-GC-408-MA4' Tall x 8' W Non-MagneticTruck55 lbs$359.98
GR-GC-408-HB4' Tall x 8' W MagneticTruck80 lbs$416.46

  • Overall Size: 4' Tall x 8' Wide
  • Available in a Magnetic Receptive or Non-Magnetic Format
  • XY Cartesian Graph is on the Left Side
  • Grid is approximately 1" square
  • Grid line thickness of 1/32"
  • X & Y Axis lines are bold Black and 1/8" thick.
  • There are 22 squares across and 22 squares down in each quadrant for a total of 484 squares
  • Custom prints are available for a small artwork fee. Contact customer service for assistance.
  • Magnetic Board weighs approximately 80 lbs.
  • Non-Magnetic Board weighs approximately 55 lbs.
  • Standard installation hardware included.
  • Normal lead-time is 3-5 business days to ship
  • School Purchase Orders Accepted
  • Ship by Truck - too large for UPS
  • Made in the U.S.A.

    Other For Best Results:
  • Note that Expo or other Bristle type erasers may permanently damage the writing surface.
  • Do not use any cleaning chemicals which contain ammonia. Most glass cleaner contain ammonia.
  • Do not use any type of scrubbing sponges or other abrasive to clean the boards.
  • We strongly recommend using facial tissue or our Opti-Wipe™ washable micro-fiber cleaning cloths
  • For best results use a quality dry erase marker and wipe each board clean after use.
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Questions and Answers about this product

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WARNING: This product can expose you to chemicals including Formaldehyde (gas) and Wood dust which are known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov www.P65Warnings.ca.gov

COVID-19Current Status

To our valued customers,

We are open -- all products and lead times listed on the website are accurate. We will continue to monitor the situation and provide updates should anything change.

At OptiMA we are monitoring the latest news about COVID-19. And like many of you, our number one priority is keeping our customers, partners, suppliers and employees safe and healthy. We believe it's important to do our part to help reduce the transmission of COVID-19, while remaining accessible to our customers.

As we diligently follow the guidance and best practices put forth by the Centers for Disease Control and Prevention (CDC) regarding work-from-home practices and daily cleaning routines, we remain online and in operation.

As a US manufacturer we feel prepared to weather this storm and continue to serve our loyal customers in a safe and productive manner.

As always, we look forward to serving you. If you have any questions, please feel free to contact us at info@mywhiteboards.com or 866-366-1500.