Other words for size and bulk include:
Dimensions, measurements, proportions, magnitude, largeness, bigness, area, expanse, breadth, width, length, height, depth, immensity, hugeness, vastness, sort, categorize, classify, assess, appraise, form an estimate of, take the measure of, judge, take stock of, evaluate, volume, mass, scale, magnitude, vastness, majority, main part, major part, lion's share, preponderance, generality, most, almost all.