TT Trading Co., Ltd.




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Monjo-bako (standard product)

  • Protection
  • Weak alkalinity


Acid-free storage box : This product is a knockdown-type box for storing documents.

This box is used to store large-sized documents and works, such as historical documents, newspapers, pictorial arts, and craftworks. There are two kinds of boxes: one is used for large-sized objects, and the other is for newspapers.

This box uses weak alkaline corrugated cardboard (Archival Board) and is two to three times stronger than a general cardboard box. This is a knockdown type; therefore, an adhesive or a fastening fixture is not required.

There is a handle, but there is no through hole because there is a partition inside.

The maximum stacking quantity is 13 steps for large-sized objects and 21 steps for newspapers (when 13 kg of documents are put in).
* Other sizes can be made by order. Please consult us for further information.


  • For large-sized objects
    Even daiminoban yokocho of historical document can be put in.
  • For newspapers
    Typical newspaper size of a sheet fits precisely (blanket size = 407 x 545 mm).


For large-sized objects

  • Specifications(mm)

    Inner diameter470×350×250
    Outer diameter520×385×260

  • Packing unit

    10 pieces

For newspapers

  • Specifications(mm)

    Inner diameter600×450×100
    Outer diameter635×485×110

  • Packing unit

    10 pieces

The depth of the lid of Monjo-bako for large-sized objects was changed from 70 mm to 65 mm.

* The cost of transportation and packing charge shall be paid separately by the customer.

How to assemble Monjo-bako for large-sized objects

  1. Assemble the body.
  2. Put the inner frame.
  3. Assemble the lid.
  4. Completed

How to assemble Monjo-bako for newspapers

  1. Assemble the body.
  2. Put the inner frame.
  3. If it is a side-open type, cut off the diagonally shaded part at the perforation.
  4. Completed

Good assembly

  • Leave fold traces on all the folding lines in advance and assemble it, and assembly is beautifully completed.
  • The side from which you hardly see the corrugation of the sheet (adhesion part of the broken line) is the outside of the box.

For consultation!

About inquiry and order as a matter of course
We provide consultations in accordance with customers' needs.
Please feel free to contact us.