Raised Bed Brackets Raised Bed Corner Brackets: 7 Picks by Bed Height
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By the Pickpedia Team
·7 picks compared
·Last verified October 2026
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Quick answer
The 12 piece black metal set is our top pick for most builds, covering three beds at 11 inches tall with 175 screws included. Choose the Hi-Flame 17 inch brackets for a deeper bed, or the 6 inch stackable set for a shallow frame.
Raised Bed Corner Brackets: 7 Picks by Bed Height at a glance
Why you can trust this guide
We compared these picks using verified manufacturer specifications, available manuals and documentation, current retailer listings, and patterns in owner feedback, alongside editorial research. We focus on measurable differences such as performance, capacity, usability, and build quality. Pickpedia does not present editorial research as laboratory testing, and we do not claim hands-on testing unless it was actually performed.
How we chose: We compared bracket height, formed corner size, steel thickness and finish, whether screws are included and the bed heights each set is rated for, across seven current corner bracket kits.
Corner brackets turn four planks into a raised bed without any joinery. The measurement that really matters is bracket height, because it sets how tall a bed the frame will hold. Everything else comes down to finish, pack size and what else is in the box.
That last point catches people out. Some kits arrive with well over a hundred screws, others ship bare and expect you to supply your own. Check it before ordering, along with whether the brackets stack if you want a deeper bed later.
Our top picks
Twelve brackets is enough for three square beds, and the kit arrives with 40 long and 135 short screws so nothing else is needed. Each bracket measures 11 inches tall with 3 by 3 inch formed corners, rated for beds 12 to 24 inches high.
Pack size12 brackets
Bracket size11 x 3 x 3 in
Screws included40 long, 135 short
Bed height12 to 24 in
Pros
- Enough brackets for three beds
- Screws supplied in quantity
- Matte black powder coat listed as rust resistant
Cons
- More brackets than a single bed needs
- Only one bracket height in the pack
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At 17 inches these are the tallest brackets here, and the steel is listed at 2 mm thick. Ten M5 screws come with each bracket rather than shared across the set. Four brackets suit one bed built from 10 to 24 inch boards.
Pack size4 brackets
Bracket height17 in
Steel thickness2 mm
Screws included10 M5 per bracket
Pros
- Tallest bracket in this group at 17 inches
- Screws counted per bracket, not shared
- Powder coated steel with 3 by 3 inch corners
Cons
- Four brackets covers one bed only
- Far more height than a herb bed needs
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Six inch brackets suit a single plank frame, which is all a salad or herb bed needs. They are described as stackable, so a second course of boards can be added later without new hardware. Rounded corners are called out for safety around children and pets.
Pack size8 brackets
Bracket size6 x 3 x 3 in
DesignStackable
EdgesRounded corners
Pros
- Right height for a single plank bed
- Stack them for a deeper bed later
- Rounded corners rather than sharp edges
Cons
- Too short for a deep vegetable bed
- Screw count is not stated in the listing
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A floral cutout runs down each bracket, the only decorative option in this group. The eight pack covers two beds and screws are included. Dimensions follow the common 11 by 3 by 3 inch pattern, so it drops into most plans.
Pack size8 brackets
Bracket size11 x 3 x 3 in
Steel thickness1.2 mm listed
FinishDecorative floral cutout
Pros
- Only decorative design in this group
- Screws included
- Standard 11 inch height fits most plans
Cons
- Thinner steel than the 2 mm Hi-Flame
- Listing quotes thickness inconsistently, so confirm before ordering
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The kit counts 8 brackets with 24 long and 88 short screws, so every corner can be fully fastened. Brackets are 11 inches tall with 3 by 3 inch corners, rated for beds 20 to 24 inches high. Staggered holes spread the fixings across the grain.
Pack size8 brackets
Bracket size11 x 3 x 3 in
Screws included24 long, 88 short
Bed height20 to 24 in
Pros
- Generous screw count for full fastening
- Staggered holes spread load across the grain
- Carbon steel with an anti-rust coating
Cons
- Rated from 20 inches, so not for shallow beds
- Plain finish with no decorative detail
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Stainless steel rather than powder coated carbon steel is the point here, which matters where a bed stays wet. A wave edge runs along each bracket. Dimensions follow the usual 11 by 3 by 3 inch pattern.
Pack size8 brackets
Bracket size11 x 3 x 3 in
MaterialStainless steel
EdgeWave edging
Pros
- Stainless rather than coated carbon steel
- Wave edge is a quieter decorative touch
- Doubles as furniture reinforcement
Cons
- Screw supply is not specified in the listing
- Listing copy leans on furniture repair as much as beds
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Screws are deliberately excluded here, with holes pre-drilled for number 10 fasteners instead. Brackets run 16 inches long on a 3 by 3 inch corner, in black powder coated low carbon steel. The four pack covers one bed.
Pack size4 brackets
Bracket size16 x 3 x 3 in
ScrewsNot included, pre-drilled for #10
MaterialLow carbon steel, powder coated
Pros
- Pre-drilled for standard number 10 screws
- 16 inch height suits a deep bed
- Lets you pick a fastener rated for your timber
Cons
- No screws in the box at all
- Four brackets covers one bed only
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What to look for
Match bracket height to your boards
This is the measurement that rules a kit in or out. A single 6 inch plank needs a 6 inch bracket, while two stacked boards want something closer to 16 or 17 inches. The sets here run from 6 to 17 inches, and most listings quote the bed height they are built for.
Check whether screws are in the box
Kits vary wildly on this. One set here ships 40 long and 135 short screws, another counts 24 long and 88 short, and the OTTFF pack deliberately includes none and pre-drills for number 10 fasteners instead. If you are buying bare brackets, add screws to the same order.
Steel thickness and finish decide how long they last
Most of these are powder coated carbon steel, which handles a few seasons of damp soil. One set uses stainless instead. Quoted thickness runs from 1.2 mm up to 2 mm, and thicker steel resists flexing when you backfill a tall bed and the boards push outward.
Stackable brackets buy you a second season
Several of these are designed to stack, so a 6 inch frame can become a deeper one by adding boards and a second course of brackets. If you are unsure how deep the bed should be, stackable hardware is the easier mistake to undo.
Frequently asked questions
Which raised bed corner brackets are best overall?
The 12 piece black metal set. Twelve brackets cover three square beds, the 11 inch height suits the common 12 to 24 inch bed, and the kit includes 40 long and 135 short screws, so the build needs nothing else. Drop to a 4 pack if you are only making one bed.
What height bracket do I need?
Match it to the boards. A 6 inch bracket fits one 6 inch plank, and 11 inch brackets are the usual choice for beds 12 to 24 inches tall. The tallest here is 17 inches. If your timber is already cut, measure the finished side height and buy at or just under that.
Do corner brackets come with screws?
Not always. The 12 piece set includes 175 screws across long and short, and the 20 to 24 inch kit counts 112. The OTTFF 4 pack includes none by design and is pre-drilled for number 10 screws. Read that line on the listing before ordering.
How many brackets does one bed need?
Four, one per corner. A 4 pack builds one bed, an 8 pack builds two and a 12 pack builds three. A larger pack only makes sense if you are building more than one bed, or want spares for repairs later.
Can I stack brackets to make a deeper bed?
Some are made for it. Several sets here describe a stackable design, which lets you add a second course of boards and brackets rather than rebuilding. Check the listing actually says stackable, because not every L bracket lines up correctly when doubled.
Is stainless steel worth it over powder coated?
In wet ground, yes. Powder coated carbon steel is the norm and lasts several seasons, but the coating is all that sits between the steel and the soil. One set here uses stainless instead, which is the safer choice for a bed that stays damp or sits near the coast.
What thickness of steel should I look for?
The figures quoted here run from 1.2 mm to 2 mm. Thickness matters most on a tall bed, because wet soil pushes the boards outward and a thin flange will flex. For a shallow herb bed the thinner brackets are perfectly adequate.
Will these work for anything other than garden beds?
Yes, and most listings say so. The same L brackets are pitched for wooden furniture, shelving, sandboxes and compost bins. One set leans on furniture repair as much as bed building. Just check the bracket length suits the timber you are joining.
Do the brackets have sharp edges?
It varies, and only some listings address it. The 6 inch stackable set specifically calls out rounded corners to avoid sharp edges around children and pets. If a bed sits somewhere people brush past it, that is a detail worth looking for.
The verdict
12 Piece Raised Garden Bed Corner Brackets...
9.0/10
For most builds the 12 piece black metal set is the pick, covering three beds at 11 inches tall with every screw supplied. Choose the Hi-Flame 17 inch brackets for a deep bed, the 6 inch stackable set for a shallow one, the stainless wave edge set for wet ground, and the OTTFF 4 pack if you already own the screws.
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Our top pick, secure checkout via Amazon
Note: Availability and specifications change often. Always confirm the current details on Amazon before buying.
