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 13 data files. These data files are the 12 test problems from Table 1 of J.E.Beasley "Algorithms for unconstrained two-dimensional guillotine cutting" Journal of the Operational Research Society 36 (1985) 297-306 together with the single test problem from Table 2 of that paper. Test problems 1, 2, ..., 12 from Table 1 of that paper are available in files gcut1, gcut2, ..., gcut12 respectively. The problem in Table 2 of that paper is available in file gcut13. 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, value The value of the optimal solution for data files gcut1, ..., gcut12 is given in the above paper.
More information about the solutions for these 13 test problems can be found here. The entire set of files is of size 10Kb (approximately).
Click here to access these files
Other test problems are available here