Raised Garden Bed Blocks - When vegetables that are growing in raised garden beds utilizing the Square Foot Gardening method, your beds will need to be sectioned off into one-foot sections called putting squares. A 4x8 foot garden bed will have 32 planting squares. Each putting square comes with an address used to identify the square.
While the means of addressing change, among the simplest is to use letters for columns and amounts for rows, and also the square is identified by the mix of the two. Numbering beginnings in the upper left corner and goes left to right, top to bottom. For example, putting square A1 is the upper left hand square (1st column, 1st row), while putting square C4 is the square in the 3rd column and also the 4th row. I've yet to locate a garden bed that is commercially available for marking off putting squares, with an included attribute.
I wish somebody would build a Square Foot Gardening grid which you can fit into a raised garden bed to mark off squares, should you wish to utilize the Square Foot Gardening method but until this is available, for marking squares off you will need to devise your own strategy. Step one would be to figure out the dimensions on the inside of the garden bed, which can be width and the length that is truly useable for planting.
The 4x8 foot garden beds I purchased, for instance, are 4x8 feet from end to end. But when you join the planks at the corners, you lose a few inches, therefore the interior dimensions of the garden bed are actually 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 dimensions as Usable Span for the remainder of the article.