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DIY Tall Raised Bed for Plant Containers & Bins

Published on August 2, 2021Last updated October 3, 2021 ♛ By Melissa J. Will

This post contains affiliate links.
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Use these free building plans to created a tall, raised bed perfect for plant containers. The height makes it easy to reach flower pots and the design accommodates plastic bins for winter sowing. Add wheels to make it moveable on a deck or patio.

Other free plans include a raised garden bed with built-in privacy wall and several styles of raised garden beds.

Tall raised garden bed with building plans.

Make a Tall Raised Bed for Plant Containers

Tall raised bed with flower pots and plastic bins.

This planter is built like a tall raised garden bed but instead of filling it with soil, it is used to house plant containers. The plant shelf allows for plenty of drainage so the unit can sit in the garden.

This has ideas for filling the container with soil without spending a lot of money.

This next image shows a cross-section with flower pots placed inside.

Cross section of tall raised bed with wheels showing plants inside.

It is also the right size to fit plastic bins with or without lids. I use bins for seed starting including winter sowing, and to harden off young plants ready for transplanting.

Bins inside tall raised bed.

The height makes the plants easy-to-access without back strain.

By adding wheels, the entire unit can be moved around as needed on a patio or deck.

Add top rails for a finished look.


Raised garden bed with built-in privacy wall.

Related: DIY Raised Garden Bed with Privacy Fence


Materials

This builds a box approximately 5-feet (60-inches) long by 28-inches wide. The box is approximately 19-inches deep. The unit is 3-feet tall.

This lists actual versus nominal softwood dimensions.

  • (4) 4x4x36-inches for corner posts
  • (4) 2x4x52.25-inches (approximate*) for front and back supports
  • (2) 2x4x18-inches (approximate*) for extra front and back support (optional)
  • (4) 2x4x20.25-inches (approximate*) for side supports
  • (1) 2x4x24-inches (approximate*) for base support
  • (8) 1x6x60-inches fence boards for front and back
  • (3) 1x6x60-inches fence boards for base plant shelf
  • (8) 1x6x26.75-inches (approximate*) fence boards for sides
  • (2) 1x5x60-inches (approximate) for long top rails
  • (2) 1x5x20.25-inches (approximate) for short top rails
  • (36) 2.5-inch #8 deck screws
  • (86) 1.5-inch #8 deck screws
  • (4) Wheels /casters (optional) – choose something you can attach to the 4×4 posts

*Do not cut these pieces until needed during assembly when you can check exact sizes needed.


Tools

  • Electric saw
  • Cordless drill, drivers, bits
    For #8 screws use 7/64″ bit for pilot holes and a 3/8″ countersink bit to sink the screws.
  • Kreg Jig K4 Pocket Hole System | To join 2x4s
  • Hammer
  • Clamps
  • Wood glue
  • Measuring tape
  • Pencil
  • Sandpaper
  • Wood stain
  • Safety glasses, gloves, and ear protectors

Assembly

This is the basic frame. There are four corner posts (4x4s) and several 2x4s used to create the front, back, and sides, and to support the plant shelf also made from fence boards.

Frame for tall raised bed with slats to hold plants.

Check Your Fence Board Lengths

First check that you have eight fence boards that are all the same length (60-inches). The whole design is based on the size of these boards. If some of your boards are a bit short, trim all 8 boards to the same length and use the new number as your guiding measure.

Calculate 2×4 Support Lengths

For a finished look, the fence boards on the front and back sections will extend beyond the corner posts by just over one board width at each end. This allows the side fence boards to tuck in nicely behind them forming good-looking corners.

If, for example, your fence boards are 5/8-inch thick like the ones I used, the front and back fence boards will extend beyond the posts a hair more than 5/8-inch at each end.

In the diagram below, the long 2x4s are shown as 52 1/4 (52.25)-inches long. In reality, there are always variations and imperfections in lumber so we need to measure exactly what your project needs.

Frame of tall raised beds with approximate measurements.

To determine the right 2×4 length, take a fence board and place a corner post one board width (e.g. 5/8-inch plus a hair or two) inside each end and mark the inside edge of each post. The distance between the two posts is the desired length of your long 2x4s.

Diagram showing how to measure long 2x4 length.

Before assembly, there is one more measurement needed.


Small pond built in a raised garden bed.

Related: How to Build a Pond in a Raised Garden Bed


Calculate Lower 2×4 Placement

What are the actual widths of your fence boards? Mine are 5.25-inches wide so four of them equals 21-inches. This means the four fence boards on each side will run 21-inches down from the top of the raised bed.

The lower edge of the lower 2x4s of the frame should be just shy of 21-inches from the top of the raised bed to be sure it won’t be visible when the fence boards are attached.

Make Front and Back Frame Sections

The 2x4s can be attached to the corner posts using a Kreg Jig K4 Pocket Hole System. This allows you to place screws in the ends of the 2x4s right into the posts.

Kreg jig
Kreg Pocket Hole Jig

The 2x4s are much narrower than the corner posts, so you want to align them with the outer edges of the posts so the fence boards will be flush with them.

Remember to place the lower 2×4 just above the place where the bottom edge of your bottom fence board will go. The diagram shows 21-inches but make it slightly less.

Front section of tall raised bed.

Attach Front and Back Sections

The shorter 2x4s are used to join the front and back sections. I cut mine 20.25-inches long.

Again, use Kreg pocket holes to join the 2x4s to the corner posts with 2.5-inch deck screws.

Basic frame

Be sure the lower side 2x4s are lined up with the front and back lower 2x4s.

The final frame piece is a 2×4 used to join the lower front and back 2x4s in the middle of the raised bed. This will provide extra support for the fence board shelf that holds the plants. Take a measurement to know the exact length needed. It will be approximately 24-inches long. You can either use pocket holes or drill through the outsides of the long 2x4s.

Attach Fence Boards

Front and Back

Mark screw locations with pencil on all eight fence boards. I used two 1.25-inch screws at each board end. They should be two inches from each of the board ends and one-inch away from top or bottom edge. Drill a pilot hole for each screw.

When attaching fence boards, start with the top board so it is perfectly aligned with the top edges of the corner posts and upper 2x4s and remember to position each one with one-board width overhanging at each end.

Diagram showing placement of front and back fence boards on corner posts.
Frame for tall raised bed with front fence boards attached.

Side Fence Boards

Measure length needed for side fence boards. You want them to fit nicely between the front and back fence boards. Mine were just under 27-inches long.

Attach Wheels

With the sides in place, now is a good time to attach the wheels if you are using them.

Plant Shelf Fence Boards

The remaining three fence boards will form the plant shelf inside the raised bed. Your fence boards are 60-inches long but will need to be trimmed slightly to fit. Measure the actual size needed, cut the boards to size, and place inside. The gaps between them allow for drainage. You can attach these boards with screws but I’ve found no need for this.


Collage of various tall raised garden beds and salad tables.

Related: 14 Tall Raised Bed & Salad Table Ideas


Attach Top Rails

Top rails for tall raised bed.

To give the raised bed a finished look, add rails around the top to hide the tops of the posts and 2×4 supports.

These can be mitered or square.

Decide if you want them to extend beyond the edges or align with them.

I made mine extend beyond the front and back edges but line-up with the sides.

Top rail overhang on tall raised bed.

This next image shows the measurements I used. The front and back rails are 60-inches long. The side rails are approximately 20.25-inches.

Finished top rails on tall raised bed.

Paint or Stain

If you want to paint, stain, or protect the wood, it’s time.

Then add your plants and enjoy.

Tall raised bed with potted plants inside.

Along with summer containers, I will be using mine for growing vegetables in the winter.


Empress of Dirt soil calculator for raised beds, in-ground, window boxes, and flower pots.

Related: Soil Calculator (Mulch, Compost, & Potting Mix Too)


If you like project ideas like this, be sure to sign up for the free Empress of Dirt newsletter.

~Melissa the Empress of Dirt ♛

Tall raised bed with flower pots and plastic bins.
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Melissa J. Will - Empress of DirtWelcome!
I’m Melissa J. Will a.k.a. the Empress of Dirt (Ontario, Canada).
Join me as I share creative + frugal home & garden ideas with a dash of humor.
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