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Stack of fifteen 32 by 40 inch polar white cotton museum boards 4 ply smooth matte finish

Archival Methods

Archival Methods Museum Board 32x40 Polar White 4 Ply PKG15 framing supply

SKU CH-JSEW-NCQ71

Acid-free 100 % cotton museum board in 32 x 40 inch 4-ply sheets, 15 per pack, buffered for long-term artwork preservation

  • 100% cotton fibre protects artwork from acid damage
  • 4-ply 30 pt board gives rigid gallery-quality backing
  • 15 boards per pack supply multiple framing projects
  • 32 x 40 inch size fits large prints and layouts
  • Buffered with calcium carbonate for long-term pH stability

Archival Museum Board 32x40

This 100% cotton fibre museum board provides acid-free, lignin-free protection for valuable artwork and documents. The Polar White surface has a cool tone with a blue shift and contains no optical brightening agents. Each board is buffered with calcium carbonate to maintain a stable pH 9 alkaline reserve. The package contains 15 sheets measuring 32 x 40 inches.

Check Project Size And Material Needs

Verify that the 32 x 40 inch dimensions suit your largest prints or mounting layouts before ordering. Confirm that a 4-ply board approximately 1/16 inch thick meets your structural requirements for framing or display. Ensure the Polar White colour tone matches the aesthetic of the specific artwork you intend to mount.

Upgrade From Standard Mat Board

This board replaces acidic or buffered wood-pulp mat boards that can degrade and damage artwork over time. The jump is worth it when preserving original photos, fine art prints or documents where long-term stability and museum-grade purity are required. It is not for buyers who need a thinner board or a warmer white tone for their presentation.

How it compares

Measured against everything we stock in Picture Frames & Mats, at today’s prices. Recalculated every night.

Price $291.99
Pricier than about 99% of the 97 comparable items (median $22.99).

Specifications

No published specifications for this item yet.

Questions about this item

Does the package include the 15 boards only, or are mounting corners or hinging tape supplied as well?

The package contains 15 boards of 32 x 40 inch museum board; mounting corners, hinging tape and any other framing hardware are not included and must be purchased separately.

Should I choose the 4-ply 30 pt. board or the 60 pt. board for a large photographic print?

Both descriptions refer to the same board — it is a single 4-ply product approximately 1/16 inch thick, so there is no separate 30 pt. or 60 pt. version to choose between.

Will the 32 x 40 inch Polar White board fit a standard 32 x 40 inch frame without trimming?

Yes, each board measures 32 x 40 inches (81.28 x 101.60 cm), matching that frame size exactly so no trimming is required.

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