OR-Library is a collection of test data sets for a variety of OR problems.
A full list of the test data sets available in OR-Library can be found here.
There are currently 7 data files. All of these files were contributed by E.E. Bischoff (firstname.lastname@example.org). The files are called wtpack1,wtpack2,...,wtpack7 These files were generated and used in:  M.S.W. Ratcliff and E.E. Bischoff, "Allowing for weight considerations in container loading", Operations Research Spektrum, Vol. 20 (1998), pp 65-71. and  E.E.Bischoff, "Three-dimensional packing of items with limited load bearing strength", European Journal of Operational Research, In press (2005) The procedure used to create these test problems is described in reference . These problems are single container loading problems, the objective being to maximise the volume utilisation of the container subject to limits on the load bearing strength of individual items. As far as the dimensions of the container and the cargo are concerned, these are identical to the ones which can be found in files thpack1,thpack2,...,thpack3 in the general Container Loading section of the OR-Library. Each file contains 100 test problems. File wtpack1 contains problems with n=3 different types of boxes. The other six files relate to n=5,8,10,12,15,20, respectively. For each problem the data has the format shown in the following example: 587 233 220 container length, width, height (in cm) 10 29.8200845000 no. of box types n, total volume of cargo (m3) 78 1 49 1 47 1 9 179.63 0.19527 0.18970 0.14661 46 1 45 1 43 1 15 89.01 0.30357 0.09628 0.06765 98 0 44 1 36 1 13 155.23 0.06698 0.13777 0.13664 ...... where there is one line for each box type (for n lines) The line for each box type contains 11 numbers: box length (cm), 0/1 indicator box width (cm), 0/1 indicator box height (cm), 0/1 indicator number of boxes of this type weight of box (kg) (which is derived from the product of the 3 dimensions) load bearing ability (kg/cm2) if box length placed upright load bearing ability (kg/cm2) if box width placed upright load bearing ability (kg/cm2) if box height placed upright. The 0/1 after each box dimension indicates whether placement in the vertical orientation is permissible (=1) or not (=0). The largest file is wtpack7 of size 140Kb (approximately). The entire set of files is of size 550Kb (approximately).
Click here to access these files