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 3 data files. These data files are the 3 test problems from Table 2 of N.Christofides and C.Whitlock "An algorithm for two-dimensional cutting problems" Operations Research 25 (1977) 30-44. Test problems 1, ..., 3 from Table 2 of that paper are available in files cgcut1, ..., cgcut3 respectively. The format of these data files is: number of pieces (m) length, width for the stock rectangle for each piece i (i=1,...,m): length, width, maximum number of pieces of that type that can be cut from the stock rectangle, value of the piece The value of the optimal solution for each of these data files is given in the above paper. The entire set of files is of size 2Kb (approximately).
Click here to access these files
Other test problems are available here and here