Lining Raised Garden Beds With Newspaper - When vegetables that are growing in raised garden beds using the Square Foot Gardening approach, your beds should be sectioned off into one-foot sections called planting squares. A 4x4 foot garden bed, for example, will have 16 planting squares (because there are 16 square feet in a 4x4 bed). A 4x8 foot garden bed will have 32 planting squares. Each planting square comes with an address used to recognize the square.
While the methods for addressing vary, among the simplest is to utilize letters for numbers and columns for rows, and the mixture of the two identifies the square. Numbering starts in the upper left corner and proceeds left to right, top to bottom. I've yet to locate a garden bed that is commercially accessible with an enclosed feature for marking off planting squares.
I wish somebody would build a Square Foot Gardening grid which you can insert into a raised garden bed to mark off squares, should you would like to work with the Square Foot Gardening approach, but until this is accessible, for marking squares off you'll need to devise your own personal procedure. The very first step would be to compute the measurements on the interior of the garden bed, which can be the length and width that's in fact useable for planting.
But when you connect the planks at the corners, you lose a number of inches, so the interior measurements of the garden bed are really a few inches short of the advertised size. In my instance, my beds have an interior measurement of 46.25 inches x 94 inches. I refer to these measurements as Useable Length for the rest of this article.