Your Dry Erase Experts Est. 1987

OptiMA® 32" x 45.5" Magnetic Dry Erase Boards with Grids

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3 x 4 Grid Boards
3 x 4 Grid Boards3 x 4 Grid Boards3 x 4 Grid Boards3 x 4 Grid Boards

32" Tall x 45½" Wide (3x4) magnetic dry erase boards come with 3 different permanent grid patterns.

OptiMA®'s OptiPrint® grid boards are covered with our exclusive clear dry erase writing surface. You won't find a better dry erase writing surface anywhere. You can write on these boards and go to erase them three months from now and it is like you just wrote on them yesterday! Really outstanding erasing properties allows you to leave writing on the boards for longer periods of time without worry.

Why 32" x 45½ vs. a full sized 3' x 4'? We can ship our slightly smaller 32" x 45 ½" by UPS and save you big on trucking charges!

Variegated rows or columns for easier reading.Now available with variegated rows in which every other row is shaded from left to right in light gray or variegated columns where every other column is shaded from top to bottom in light gray for much easier tracking and readability.

There are three different and very popular grid patterns to select from. Satin anodized aluminum trim and full-length marker trays make these grid boards really stand out from the competition with inferior aluminum trims and no marker trays.

If you need a custom size grid pattern not shown on this list we can create it for you. Please give our friendly customer service staff a call for assistance.

    Special Volume Discounts:
  • Order 2-4 Units of the Same Size and get an additional 7.5% Discount on those units
  • Order 5-9 Units of the Same Size and get an additional 10% Discount on those units
  • Order 10-24 Units of the Same Size and get an additional 12.5% Discount on those units
  • Order 25 or more Units of the Same Size and get an additional 15% Discount on those units
  • Units must be the same size and shipping to the same location to get the discount

Tip: It is not recommended to clean these boards with anything containing ammonia which is found in most glass cleaners.

Grid OptionShipping MethodShipping
Sale Price
GR-HB304-G-A1" x 1" GridUPS23 lbs$328.91
GR-HB304-G-B1" x 2" GridUPS23 lbs$328.91
GR-HB304-G-D2" x 3" GridUPS23 lbs$328.91
GR-HB304-G-VR-A1" x 1" Grid - Variegated RowsUPS23 lbs$328.91
GR-HB304-G-VR-B1" x 2" Grid - Variegated RowsUPS23 lbs$328.91
GR-HB304-G-VR-D2" x 3" Grid - Variegated RowsUPS23 lbs$328.91
GR-HB304-G-VC-A1" x 1" Grid - Variegated ColumnsUPS23 lbs$328.91
GR-HB304-G-VC-B1" x 2" Grid - Variegated ColumnsUPS23 lbs$328.91
GR-HB304-G-VC-D2" x 3" Grid - Variegated ColumnsUPS23 lbs$328.91

    Product Features:
  • Size: 32" Tall x 45.5" Wide
  • Trim: Satin Anodized Aluminum
  • Tray: Full-Length Marker Tray
  • Installation Hardware Included
  • Surface is Magnetic Receptive - You can use magnets and magnetic accessories
  • Three Grid Patterns: 1" x 1", 1" x 2", 2" x 3"
  • Available with alternating shaded (variegated) rows or columns
  • Write on surface with damp erase or dry erase markers
  • Lead-time: Product normally ships from our Massachusetts facility in 2-5 business days
  • Ships by UPS Oversized 1
  • Weight: 23 lbs.
  • Product can be customized
  • Made in the U.S.A.
    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

Questions and Answers about this product

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.