Clamshell Box Calculator

Box board dimensions from book measurements.

Book height (mm)

Book width (mm)

Book thickness (mm)

Board thickness (mm)

Tab to move between fields

Box height (mm)

231

Box width (mm)

166

Box depth (mm)47

Board pieces to cut10

Total board area (cm²)1,065

Cover cloth area (cm²)1,586

How to Use This Calculator

Measure the book's height, width (cover to fore-edge), and total closed thickness in millimeters.
Enter your davey board thickness — 2 mm is standard for most clamshell boxes.
Read the overall closed box dimensions (height, width, and depth) to verify it fits your storage requirements.
Use the total board pieces and board area outputs to cut your davey board efficiently.
Use the cover cloth area in cm² to estimate how much bookcloth to cut for covering both trays.

How the result changes with Book height (mm)

Book height (mm): Height of the book to be enclosed.
Book width (mm): Width of the book (cover to fore-edge).
Book thickness (mm): Total thickness of the closed book including covers.
Board thickness (mm): Thickness of the davey board for the box. 2 mm is standard.

Box height (mm): Overall height of the closed box.
Box width (mm): Overall width of the closed box.
Box depth (mm): Overall depth (thickness) of the closed box.
Board pieces to cut: Total number of board pieces (floors + walls).
Total board area (cm²): Total board area for material estimation.
Cover cloth area (cm²): Approximate bookcloth needed for both trays with turn-in.

Identify Input Parameters
4 parameters
Book height (mm) = 220, Book width (mm) = 155, Book thickness (mm) = 25, Board thickness (mm) = 2 = 4 input(s) provided
Calculate Box height
Box height = lidInteriorH + 2 * boardThicknessMm
231 = 231
Calculate Box width
Box width = lidInteriorW + 2 * boardThicknessMm
166 = 166
Calculate Box depth
Box depth = baseInteriorD + lidInteriorD + boardThicknessMm
47 = 47
Calculate Board pieces to cut
Board pieces to cut
10 = 10