I need to create a template for printing on lanel forms. The particular form I an struggling with at the moment is Avery 5267. The labels are each 0.5 x 1.75. There are 80 per page (4 across and 20 down). There is a gap of 5/16 between the labels horizontally.

The first problem I am having is getting the height right. I have created a table with 7 columns. Columns 1, 3, 5, & 7 are 1.75" wide (exactly). Columns 2, 4, & 6 are 5/16" wide (0.31). This almost works.

I have set the rows 0.5" exactly. I turned off borders and filled every other cell with grey shading. When I print that out, the rows are almost 5/8" tall. What do I have to do to get Word to make rows that are exactly 0.5" tall?