ours should be 3 more-or-less definite chapters (one of which must be "substantial" eg reflect original data) plus outlines of all other chapters. no word limit, but if the full thesis should be 75'000-100'000 words and would comprise, say, 7 chapters, then the report would be 30'000 words upwards.
i find that if i use font 11, arial, or if i use font 12, times, i get about 1000 words on two pages, so that would make 30'000 words ~60 pages. that's without any charts or tables.