Organic Vegetable Garden Beds - When growing vegetables in raised garden beds using the Square Foot Gardening method, your beds will need to be sectioned off into one-foot segments called planting squares. A 4x4 foot garden bed, for instance, 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 has an address used to identify the square.
One of the simplest is to utilize letters for amounts and columns for rows while for addressing the methods change, and also 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 commercially accessible garden bed with an included feature for marking off planting squares.
I wish somebody would create a Square Foot Gardening grid which you can insert into a raised garden bed to mark off squares, in case you would like to utilize the Square Foot Gardening approach but until this is accessible, you'll need to formulate your own system for marking squares off. The first step is to figure out the measurements on the inside of the garden bed, which can be the length and width that is actually usable for planting.
The 4x8 foot garden beds I purchased, for example, are 4x8 feet from end to end. But when you connect the boards in the corners, you lose a few inches, therefore 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 dimension of 46.25 inches x 94 inches. I refer to these measurements as Useable Span for the balance of the particular article.