This is a basic lid/tray that does not usually require any tooling to produce. When made up it does require sealing in each corner. Corners are often stitched together especially when sizes are big.
Unless otherwise specified all dimensions are expressed as
Internal dimensions in mm as follows:
Length (L) = the longer dimension at the opening
Breadth (B) = the shorter dimension at the opening
Height (H) = the dimension from the top of the opening to the base
The dimensions L, B, H are specified in each description of the case construction,
For some models the numerical value of B can exceed the numerical value of L.
Dimensions should be measured under standard climatic conditions,
On the flat blank from the centre of crease bearing the thickness of the material in mind.
The height (h) of the upper part (lid) should be given as a fourth measurement
After an oblique stroke. Example: 355 x 205 x 120/40 mm (L) x (B) x (H)/(h)mm
The length of the area of overlapping (o) should be given as a fourth measurement
After an oblique stroke. Example: 355 x 205 x 120/40 mm (L) x (B) x (H)/(o)mm
M = usually manual erection A = usually automated erection
M/A = can be either manual or automated
M+A = requires a combination of both