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The clever engineering in this build hides in plain sight: it's a privacy fence that anchors itself. A freestanding 6-foot screen would blow over in the first storm — but this one stands in a planter box, and a planter full of wet soil weighs a couple hundred pounds. The dirt is the foundation. That's why it works on a rented patio, a deck, or anywhere you can't dig post holes or pour concrete.
The skeleton is three 2x4 frames — two mirrored outer frames and a center frame — clad on every visible face with cedar fence pickets. Seventeen full-length 72" pickets run vertically to make the screen; shorter pickets wrap the planter box at the base. Note the frame detail in step 1: the outer frames carry their horizontal members to the outside, in mirror, while the center frame carries them centered — that's what gives the picket skins a flat plane to land on from both directions.
Cut the longest pieces from each 2x4 first, as the source warns — the cut list just barely comes out of four 8-footers, and cutting a 14" block out of a fresh board strands a 71-1/2" rail with nowhere to come from.
Two placement rules, both learned the heavy way: line the planter with waterproof landscape liner (punched for drainage) so the soil doesn't rot the box from inside, and move the planter to its FINAL position before filling. After the soil goes in, it does not move again without a dolly and regrets.
| Item | Qty |
|---|---|
| Cedar fence picket, 5-1/2" x 72", not dog-earedScreen, planter cladding, and floor. Sight down every board at the store — the screen face shows every bow. | 21 each |
| 2x4, 8 ftThe three frames. Cut the longest pieces from each board first or the cut list won't come out. | 4 each |
| Exterior screws, 2-1/2", self-tappingFrame joints. | 25 each |
| Exterior screws, 1-5/8", self-tappingAll the picket cladding. | 100 each |
| Waterproof planter linerOr heavy plastic sheeting. Punch drainage holes — sealed soil is a swamp. | 1 each |
| Penetrating exterior stainFence or deck rated. A penetrating stain, not a film finish — nothing to peel later. | 1 qt |
Overall cost: $$$. Lumber prices vary by region, species, and season, so we give a band rather than a figure we would only be pretending to know.
| Part | Qty | T × W × L |
|---|---|---|
| Frame verticals2x4Cut these first, one per 8-ft board. | 3 | 1 1/2" × 3 1/2" × 71 1/2" |
| Frame horizontals, planter depth2x4 | 3 | 1 1/2" × 3 1/2" × 22" |
| Frame horizontals, short2x4 | 6 | 1 1/2" × 3 1/2" × 14" |
| Planter end claddingCedar fence picket | 8 | 5/8" × 5 1/2" × 17" |
| Screen and front/back picketsCedar fence picketFull-length, uncut — which is why not-dog-eared pickets matter here. | 17 | 5/8" × 5 1/2" × 72" |
| Planter floorCedar fence picketMeasure and cut to fit the assembled box. | 2 | 5/8" × 5 1/2" × 70" |
Buy 23 boards at 8 ft.
4 boards
19 boards
Assumes 8 ft stock, a 1/8" saw kerf, and buying each part at its own width. Change the board size or kerf on the full board plan →
Build the two outer frames and one center frame from the 2x4s with the 2-1/2" screws, two per joint.
The detail that matters: the outer frames put their horizontal members to the OUTSIDE faces, mirrored left-to-right; the center frame carries its horizontals CENTERED. Lay the two outer frames side by side before screwing anything and confirm they're mirror images, not copies — a copied frame puts one skin plane 1-1/2" out of line.
Screw the 17" pickets across the outside ends of the planter box with the 1-5/8" screws — four boards per end, edges touching.
Stand the frames up and run the 72" pickets vertically across the front and back, centering the middle frame in the run. Keep the first picket plumb and the rest follow; check plumb again every four or five boards, because small errors accumulate across seventeen pickets and the last one announces all of them.
Two screws per picket per rail crossing.
Add the remaining short pickets to the back of the planter box with the 1-5/8" screws — the box needs all four walls to hold soil pressure.
Measure and cut two pickets to fit the planter bottom and screw them in with small drainage gaps. Sand the whole piece lightly and stain with a penetrating fence-grade stain.
Line the box with waterproof liner and punch drainage holes through liner and floor gaps. Now move it to its final spot — final, because the next step is soil, and soil is the anchor. Fill deep, plant something that climbs or billows, and enjoy the neighbor-free sightline.
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