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Step 1
Plan your beds by drawing them out within the context of a diagram of your yard. How many do you want? How large do you want them to be? How high will the walls be? (See Tips below for information about determining your beds' height.)
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Step 2
Calculate how much wood you'll need for the beds you want to build. (Think of the beds as boxes without tops or bottoms.)
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Step 3
Buy the lumber--make sure you get pressure-treated wood; otherwise it will rot quickly from contact with wet soil--and cut it or have it cut. (See Warnings for info about pressure-treated wood.) Remember that you'll need four sides to each bed. Railroad ties or landscape timbers work well for very short beds. For taller beds, 2-by-12 lumber is a good choice; it's sturdy and you'll end up with beds that are about 10 inches high - comfortable for working.
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Step 4
Use a tape measure and flour sprinkled on the ground to mark out your beds, making sure to leave adequate room between the beds for a path. Beds should be narrow enough that you can reach the middle from both sides, especially if you'll use them for labor-intensive crops like vegetables.
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Step 5
Rid the bed of plant matter by stripping turf, weeding and/or moving plants and flowers if necessary.
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Step 6
Dig a trench under the edge of the bed. Its depth will depend on your building materials, but it should be at least a couple of inches deep; if you're on a slope, you'll need to dig the uphill side in deeper than the downhill side so that the box's walls will remain even in height.
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Step 7
Build the box (if you're using railroad ties, just lay them out) and settle it into the trench. Get the box as solid and level as you can, then pack dirt back down around the edge.
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Step 8
Fill your beds with soil. If drainage is a problem - say, if you're building beds on clay or hardpan - fill with a 2-inch layer of gravel and then of sand and then fill with soil.















Comments
lorelaieggs said
on 2/1/2009 Can I use store pallets like the one stores have merchandise shipped on???
psychonurse said
on 10/1/2008 I have terible clay, AND a slope that leads to rain drainage problems. You've answered my concerns-Thanks!
WendyRenee said
on 5/13/2008 great ideas!!
corgilove12 said
on 2/18/2008 The current status on using pressure-treated lumber to build raised beds in which food will be planted is: DON'T. It leaches chromium, copper, and arsenic into edibles. Build with redwood or cedar, and seal it with an oil-based sealant.
DON'T use railroad ties or telephone poles for the same reason--they are treated with creosote, another toxic substance.
corgilove12 said
on 2/18/2008 The current status on using pressure-treated lumber to build raised beds in which food will be planted is: DON'T. It leaches chromium, copper, and arsenic into edibles. Build with redwood or cedar, and seal it with an oil-based sealant.
DON'T use railroad ties or telephone poles for the same reason--they are treated with creosote, another toxic substance.