How To Build Cheap Raised Garden Beds In 2021 (2024)

Learn how to build cheap raised garden beds in 2021 with simple step by step instructions. And at sky high lumber prices too!

How To Build Cheap Raised Garden Beds In 2021 (1)

Why Build Raised Garden Beds?

Raised garden beds can offer a lot of benefits to both beginner and experienced gardeners. Firstly, they allow you to control the soil environment more than direct in-ground gardening.

Since the foundation of healthy plant life is in the soil, using raised beds is a beneficial option for great growing results.

Raised beds also help control weeds, as well as allow you to control moisture levels. Don’t get me wrong. We are not trying to take over Mother Nature’s job. When I say “control,” I really mean “greater success.” Sometimes, Mother Nature has her own way, and there’s not much we can do about it.

Overall, a raised bed is easier to maintain soil conditions, moisture levels, and weed control. These 3 items allow a gardener to have a higher success rate when growing flowers, vegetables, and fruits.

What To Plant In A Raised Bed?

You can plant almost anything in a raised bed, but that is strictly based on the size of the bed.

Wider plants, such as zucchini, some varieties of tomatoes, and large leafy greens like chard, can fill out a raised bed pretty quickly, not leaving much room for anything else.

Vines like pumpkins, melons, cucumbers, and peas can be difficult to maintain in a raised bed. You will have to consider a trellis for vertical growing of these types of plants.

Plants such as your root vegetables, will need a deeper raised bed with a fair amount of lofty soil, as they require a lot of space to grow upward.

However, all of these scenarios can be successful with a few minor alterations.

Don’t forget about your flowers and herbs too! Flowers can be beautiful when grown densely in a raised bed. I love the idea of a flower garden specific for cutting to make arrangements.

Also, herbs can be grown to use fresh in the kitchen to cook with. You can also dry them to use for many different reasons. To learn how to dry herbs and the many uses they have, head over to this article I wrote.

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What To Consider Before Building A Raised Garden Bed?

You will first want to consider where your garden beds will be located. A relatively flat location is ideal. You will also want to be sure that the amount of sun is appropriate for what you will be planting in it.

After determining your location, you will want to decide on how many raised garden beds you want to build. The plans that we have created here are for a 6 ft. by 3 ft. raised garden bed. Consider how much you will want to plant, and how spaced apart your plants have to be.

One recommendation regarding the size of your garden bed, is that you will not want to build it any larger than 4 ft. wide. It is difficult reaching into the garden to weed or harvest when the bed is any wider than 4 ft.

Once you have mapped out the location and amount of raised garden beds you will be building, you will need to make a supply list. Thankfully, I have done that for you!

Supplies Needed To Build A Cheap Raised Garden Bed In 2021

You might be asking, “how is it possible to build anything cheap with the sky high lumber prices in 2021?” Well, we cut a few corners and attempted to be resourceful. We bought and used FENCE PICKETS to build our garden beds!

Yes, I too was skeptical when first tossing this idea around. But, after shopping around and seeing many options, I realized that not all fence pickets are created equal. There are plenty of strong and sturdy options that cost so little compared to the traditional boards used. So, hang with me. Keep reading and I will show you how to build cheap raised garden beds in 2021.

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Wood Options

Fence pickets come in a variety of wood options, such as pressure treated, untreated pine, cedar, and redwood. Since you want these raised beds to stand the test of time, a pressure treated or cedar/redwood option will work best.

Pressure treated wood is less expensive than cedar or redwood, but that’s your choice on whether you want the chemically-treated wood in direct contact with the soil you are growing your food in. There are many studies out there that indicate there is no harm in using pressure treated wood, but that is your decision to make and a personal preference. No judgement!

Cedar is typically less expensive and easier to find than redwood. Both woods are good options for naturally standing the test of time without chemical treatment. Obviously, both of these woods are more expensive than the pressure treated option.

When purchasing your fence pickets, you will need to examine the boards to make sure they are as straight as possible. Perfection is probably not attainable here, but you will want to get as close as possible.

Other Materials Needed

In addition to the fence pickets, you will need to purchase an 8 ft. section of 2 x 2 lumber to help secure the corners and sides of the raised garden bed.

And last, but not least, you will need 1-5/8 in. (or close to it) wood screws!

Supply List To Build A 6’ x 3’ Raised Garden Bed

Total cost for lumber and screws = $25.16

Step By Step Guide On How To Build Cheap Raised Garden Beds In 2021

This is a guide for building a 6’ x 3’ raised garden bed.

Step 1:

Set up your work station with the circular saw, cordless drill, wood screws, tape measure, pencil, and wood material.

Take your first fence picket and measure the length to where the ”dog ear” starts. Mark the measurement with a pencil.

Take your circular saw and cut on that mark to remove the “dog ear.” Now you will have what looks like a regular, rectangular board with perpendicular sides.

Repeat with remaining 5 boards, ensuring that all boards are cut to the same length.

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Step 2:

Take 2 of the boards, and measure out the middle of each board. Mark the measurement with a pencil.

Take your circular saw, and cut both boards in half at the mark.

Step 3:

Use your tape measure to record the width of the fence pickets. They should be approximately 5.5 inches wide. You will double that number when measuring out and marking the length on your 2 x 2 piece of wood. This will create a total of 6 braces that your fence pickets will attach to.

Now take your 2 x 2 piece of wood and measure out that number you recorded (double the width of the fence picket – approx. 11 inches) and mark with a pencil along the 2 x 2 until you have 6 total pieces to cut.

Cut these marked pieces with your circular saw.

Step 4:

On a level surface (like a paved driveway), attach the fence pickets to the 2 x 2 braces, as shown in the picture below.

Attach the pickets on the lower level first, then attach the second level of pickets, ensuring that everything is lined up evenly.

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How To Set Up Your Raised Bed Once Finished Building

Once you are finished assembling the raised bed, you will want to move it to it’s permanent location. The benefit of these beds, are that they are very light to pick up and maneuver. Make sure it is in the correct location, because after filling it with soil, it will be very difficult to relocate.

If you are placing your raised bed on any area that has grass or weeds, you will want to lay down some sort of weed barrier. You can choose to lay down a fabric barrier that you purchase at the store. We, however, used cardboard from our no-till method we’ve been working on in the other garden beds.

You will want to find some fill to put in the bottom half of your raised garden bed. This keeps the costs down, as purchasing premium soil to fill an entire garden bed can get hefty.

Examples of fill include chopped up logs, twigs, branches, leaf mulch, and compost. You do not want to add fill that contains too many weeds, as this can defeat the purpose of a raised bed keeping weeds under control. We used fill from a local farm friend that was free.

The top half of your raised bed should be a premium soil that makes an excellent choice for growing your plants in. We also got some quality leaf mulch/soil from our local compost center, and it too was FREE!

Once you are done building and filling your raised garden beds, the only thing left to do is plant!

Pin For Later

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Well, there you have it friends! You now know my secret on how to build cheap raised garden beds in 2021. We built about 13 of these this Spring to add to our big garden expansion. This has allowed us to free up the in-ground garden space for vining plants and fruit bushes.

Drop a comment below and tell me what you’re planting this year, and if you have or plan to build raised garden beds.

Thanks for stopping by, and I’ll see y’all later! Happy gardening!

How To Build Cheap Raised Garden Beds In 2021 (2024)

FAQs

How to build a raised garden bed cheap on a budget? ›

Here are a few items you could use, round up or find in your yard to create a raised bed on a small budget.
  1. Bricks.
  2. Stones.
  3. Wood or barn wood (make sure it's chemical free)
  4. Fence pickets.
  5. Cinder blocks.
  6. Galvanized tubs.
May 3, 2024

Is it cheaper to buy or build raised garden beds? ›

On average, a DIY raised bed constructed from wood will cost $25 to $50 per square foot. To have a wooden raised bed constructed and installed for you, budget for at least $100 per square foot. (Find a kitchen garden company in your area.)

What is the cheapest wood for raised garden beds? ›

PINE, CEDAR OR REDWOOD: I chose pine because it is the cheapest option (other than free or used material). I know what you might be thinking. Redwood and cedar will last longer than pine.

What is the best thing to put in a raised garden bed? ›

If you're going to pay for a product to fill your raised beds, again, it should just be really good soil and compost. I only recommend a thin layer of gravel at the bottom of your raised bed and under the edges to help you level the area. Save the rest of your gravel for your garden pathways.

What is the cheapest material to use for raised garden beds? ›

Cinder block beds are a popular choice for raised garden designs because of their low cost and easy assembly. They make an excellent choice if you want to save money while gardening.

What material do you put on the bottom of a raised garden bed? ›

Cardboard or newspaper: Cardboard is a great option if you are on a budget. You can line the bottom of your raised garden bed with cardboard and newspaper to deter pests and weeds.

How deep should a raised garden bed be? ›

They should have at least 8 inches of soil depth to accommodate the root systems of plants, because the majority of plant roots require 6 – 8 inches of soil for healthy root growth. A depth of 8 – 12 inches will suffice for most gardening situations.

Should raised garden beds have a bottom? ›

Despite lining the bottom of a raised bed, the raised bed itself should not have an enclosed bottom. Raised garden beds should be left open to the ground to allow plant roots to grow further into the ground for nutrients if needed.

Can I use ground soil in a raised bed? ›

Soil taken from your yard or a garden bed is too dense to use in a pot or raised bed. Instead, for containers, you'll want to use potting mix (also called potting soil), a lightweight and fluffy alternative. For raised beds, you'll want to use a blend of potting mix and garden soil.

Which wood should you avoid when constructing a raised bed? ›

Pressure-treated lumber is not recommended for raised beds for growing vegetables. Never use railway ties treated with creosote. This wood is dark in colour and smells like petroleum. The chemicals used to treat this wood are extremely toxic.

Can I use regular lumber for raised garden beds? ›

The Best Wood to Build a Raised Bed Will Be Untreated

I don't recommend buying anything that's pressure-treated and likely to leach chemicals into the soil (and from there, into the plants that you're going to eat).

How long will untreated wood last in raised beds? ›

The Type of Wood Used

Cedar, redwood, cypress, and hemlock are all types of wood that don't decay or rot quickly, and they can be expected to last anywhere from 10 to 20 years. Check which of these durable boards you can find locally sourced. My preference is always untreated cedar.

What are three mistakes to avoid when gardening with raised beds? ›

Seven Beginner Raised Bed Gardening Mistakes to Avoid
  • Picking The Wrong Spot. It is a common gardening mistake made by many gardeners. ...
  • Not Thinking About The Water Source. ...
  • Raised Beds Placed Too Close Together. ...
  • Crowding your Plants. ...
  • Planting the Wrong Plants. ...
  • Skipping Mulch. ...
  • Not Using the Correct Soil.

Should I put landscape fabric under a raised bed? ›

Landscape fabric is beneficial for raised garden beds, here are just a few of the many reasons why you should use landscape fabric for raised bed gardening: Prevents soil erosion in a raised bed: As a liner, landscape fabric lets water drain away from the soil while leaving the soil intact.

How many bags of soil do I need for a 4x8 raised bed? ›

For a 4x8-foot raised bed with a 6” height, using Mel's Mix: about 5 cubic feet each of compost, peat moss, and vermiculite is needed. It usually takes about two to three bags of purchased fertile mix (1.5 cubic feet each) to cover the bed surface to a depth of 2 inches.

What is a good substitute for raised bed soil? ›

Soil taken from your yard or a garden bed is too dense to use in a pot or raised bed. Instead, for containers, you'll want to use potting mix (also called potting soil), a lightweight and fluffy alternative. For raised beds, you'll want to use a blend of potting mix and garden soil.

Is pressure treated wood safe for garden beds? ›

He stated in a bulletin titled, Treated Wood in Raised Bed Gardening, “Scientific evidence and data have shown that using pressure treated wood for raised bed or box gardening is safe to adults and children in terms of the plants grown and used in these containers.” He further explains, “All chemicals in consumer ...

How to build a garden cheaply? ›

Here are 10 ways to garden without breaking the bank.
  1. Be on the lookout for plant swaps. ...
  2. Shop for plants in the off-season. ...
  3. Start from seeds. ...
  4. Save seeds. ...
  5. Accept cuttings from friends. ...
  6. Build a raised bed from found materials. ...
  7. Make your own soil amendments. ...
  8. Find free mulch.
Jan 14, 2022

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