Raised Sustainable Vegetable Garden

Materials & Supplies Needed
(8) 2x4x96 Pressure Treated Boards
(14) 6′ Cedar Fence Pickets
(1) 4x4x8 Pressure Treated Post
(2) 1x6x6 Pressure Treated Boards
(1) 7/8″ Dowel Rod
(4) 24″ x 2″ Pieces of Steel Angle Iron

(12) 2″ zinc plated lag screws

  • 1-1/2″ Decking Screws
  • 7/8″ forstner bit or spade bit

Tools Used

Kreg Pocket Hole Jig 

Circular Saw 

  • Drill/Driver
  • Miter Saw
  • Clamps

Step 1: Cut Lateral Frame Supports

Trim down any excess on four of the straightest 2×4’s to 96″ for the lateral frame supports.

Step 2: Cut Cross Braces

Cut 16 2×4’s to 19.50″. Then pre-drill a pair of 1-1/2″ pocket holes into both ends of each board using your Kreg Jig. On two of those cross braces, add a pair of inward facing 1-1/2″ pocket holes on center that will be used to support the center post.

Step 3: Cut Vertical Spacers

Cut eight 2×4’s to 7″ for the vertical spacers that will separate the top and bottom frames. Using your Kreg Jig, Pre-drill a pair of 1-1/2″ pocket holes into each end.

Step 4: Assemble Frame

Using the pre-drilled 1-1/2″ pocket holes, assemble two rectangular frames with the 96″ lateral supports and the 19.50″ cross braces using 2-1/2″ Blue Kote Screws. Make sure to point your pocket holes outward for easier attachment.

Step 5: Assemble Inner Frame

Using the 12 pre-drilled 19.50″ cross braces, assemble the inner frame using 2-1/2″ Blue Kote Screws. The bottom frame (pictured closest) will be assembled upside down the with cross braces mounted horizontal and flush with the frame bottom. The top frame will have the cross braces mounted on their sides. Take note of the spacing: outside boxes 15″, middle boxes 15.75″. Spacing between cross braces on bottom frame 3.50″. Spacing between cross braces on top frame 7-1/2″. Notice the inward facing pocket holes on the blue cross braces will be facing upward to attach the post.

Step 6: Connect Frames

Flipping the bottom frame back over so the cross braces are flush with the ground, attach the top frame to the bottom frame using the 7″ pre-drill vertical spacers. Make sure the pocket holes are outward facing when you attach with 2-1/2″ Blue Kote screws for easier assembly.

Step 7: Add Legs

Prep the 24″x2″ angle iron by sanding away the oxidation and sealing with metal specific spray paint. You can get your angle iron pre- cut or cut your own like I did with the Diablo Steel Demon Blade with a Circular Saw. Pre-drill pilot holes with a metal safe drill bit and then attach to the frame using the 2″ lag screws.

Step 8: Add Cedar Siding

Cut 41 pieces of cedar fence plank to 14.25″. Pre-drill a pilot hole (because they’ll split) and attach to frame using 1-1/2″ decking screws. I used 17 planks per each long side and left about 1/4″ overhang on the top. On the short sides I did have to trim down a smaller piece to fill a short gap.

Step 9: Add Center Post

Cut the pressure treated 4×4 to 60″ and then center and attach using the pre-drill pocket holes and 2-1/2″ screws on the center cross braces.

Step 10: Add Post Spacers

Cut two 2″ blocks off the scrap leftover from the 4×4 and use it as a spacer between the top cross braces and the center post. Use a level to make sure the post is straight. Toenail the block to the post with 2-1/2″ screws and then attach the space blocks to the cross braces.

Step 11: Add Bottom Supports

Cut four pieces of cedar fence picket to 44″ and attach to the bottom cross braces to add support to the liner. Pre-drill and use the 1-1/2″ decking screws to attach.

Step 12: Add Liner

Cut the reinforced garden liner into panels and attach the bottom frame of the planter. I folded my garden line into 2 ply and then attached with screws. You can also try staplers or roofing nails to attach it. Just make sure you have plenty of coverage.

Step 13: Add Bin Dividers

Using the remaining scrap cedar fence pickets, cut 12 pieces to 12″ long and then attach on the outside of each bin divider. Be sure to pre-drill and use the 1-1/2″ decking screws. I left the center open and will be closing those holes with cardboard that will act as a divider for the compost bins and degrade.

Step 14: Attach Hanging Basket Support

Cut both pressure treated pieces of 1×6 to 70″. Stack them and then pre-drill the 7/8″ holes for the dowel rod to hold the hanging planters. Then cut two blocks of your scrap 4×4 to 5-1/2″ and attach to the ends of one of the 1×6’s using decking screws. Then center your 1×6 on the 4×4 beam and attach using the 2″ lag screws. Be sure to pre-drill to avoid splitting.

Step 15: Attach Final Hanging Basket Support

Attach the final portion of the hanging basket support with decking nails and lag screws. Then drive the 7/8″ dowel road through the holes. Cut off any extra with a hand saw. If the dowels aren’t going in easily, widen the hole on only one side.

Step 16: Compost Bins

For the compost bins I just used cut up pieces of cardboard as a divider. I then added a layer of gravel, then sticks and leaves and then leftover compost dirt from my old bin.

I’ll continue to add and stir this compost and let it add nutrients to the planters on either side. Be sure to take note of what items you can and cannot add to compost bins to ensure best results!

SOURCE ————– www.instructables.com

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