is that when the spacer as shown in fig1 is formed a large amount of stock in the indentation a is wasted each time a spacer is cut out fig2 shows the improved carton spacer obtained by the use of the instant invention the approximately square saw toothed indented carton spacer shown in fig2 when cut from a single sheet of package stock greatly reduces the amount of stock which is lost as can be seen particularly in fig3 when the package stock is laid out with the spacers of fig2 there is no significant loss of package stock due to cutting rather the approximately square saw toothed edge 2 shown in fig3 of one package spacer nests within a complementary saw toothed edge 3 of another package spacer thereby permitting the formation of several interconnected and nestable spacers 4 5 and 6 from a single sheet of stock likewise with respect to the 34 s 34 shaped carton spacer of fig4 it is readily seen that this spacer can be laid out on a sheet of stock material as in fig5 without any significant loss of stock due to cutting again in fig5 the 34 s 34 edge 7 of one spacer of fig4 nests complementarily into a corresponding edge 8 of another nesting spacer thereby permitting the formation of several interconnected and nestable spacers 9 10 and 11 from a single sheet of stock.