DH bought enough 2" x 8" x 8' boards to contain 3 raised beds in our 12' x 24' hoop house. We considered concrete blocks but at 8" wide x 4 rows for the 3 beds = 32" of the 4 yd. width so opted for the wood. Everything commercial that I've seen isn't safe for use around food producing plants. I found this recipe in Edward C. Smith's THE VEGETABLE GARDENER'S BIBLE on page 77--sidebar on left side of the page. "...you can make home-brew a batch: Melt 1 ounce (30 g) of paraffin in a double boiler. Remove from heat. Stir the melted paraffin into 3 1/2 quarts (3.3 L) of turpentine. Stir 1/2 cup (120 ml) of linseed oil into the paraffin-turpentine mixture." There are no instructions for application. Do you use a paintbrush to apply it or soak only the ends of a stake (the author was using 2" x 2" x 6 1/2' lumber for a trellis stakes) that will be pounded into the ground? Has anybody used anything like this and if so how did you apply it? How effective was it? I remember my father using a mix of boiled linseed oil and turpentine to make a beautiful finish on indoor wood projects but nothing outdoors that I can remember. Sure do appreciate any input.