Larch Trough Planters & Window Boxes
Larch or ACQ pine troughs and window boxes, floating base, welded liner, brackets, quoted per drawing.
Designed for the online garden trade: one carton, one bed, no loose boards, and a corner bracket strong enough to hold 180 litres of wet soil without the rail bowing.





Model TB-BD-505 · HS 4421.99.9780 · Made in Jiangsu, China
We quote from your spec sheet, not from a public list: face profile, species, finish, hardware, packing and order quantity. Send a drawing or a sample and you get a tiered offer with the packing list and CBM per container inside 24 hours.
| Attribute | Standard configuration |
|---|---|
| Standard sizes | 900 × 600 × 300 · 1200 × 600 × 300 · 1200 × 800 × 450 · 1800 × 900 × 750 mm |
| Wall build | 16 / 20 / 28 mm spruce or larch, 2 or 3 boards high |
| Corner joint | Bracket (1.5–2 mm steel) or tongue-and-groove post |
| Liner | 300 g geotextile / 0.2 mm LDPE / food-safe PEVA |
| Timber treatment | ACQ class 3, or untreated larch, or thermally modified pine |
| Fixings | Waxed or stainless screws, pre-drilled, hex key included |
| Soil volume | 1200 × 600 × 300 = 216 litres |
| Carton | 1200 × 660 × 140 mm, 23 kg, ISTA 3A drop-tested |
| Order quantity | What changes commercially |
|---|---|
| 200–499 | Plain kraft carton, geotextile liner |
| 500–1,999 | Printed carton + QR install video + PEVA liner |
| 2,000+ / 40'HQ | Own-brand colour box, accessory bundle option |
We start from the failure point, the bottom rail sitting in wet soil. And add a 6 mm drainage gap under the base boards, a liner that stops short of the timber-to-ground contact, and a bracket that carries the soil load rather than the screws. On a 750 mm-deep bed the wall sees about 130 kg per linear metre of lateral pressure when saturated; that is a bracket and board-thickness decision, not a marketing claim.
| Species / board | Where it wins | Watch out for |
|---|---|---|
| ACQ spruce | Cheapest durable route, garden-centre standard | Liner recommended for vegetable use |
| Siberian larch | Untreated, natural durability story, premium retail | Prices move with Russian log markets |
| Thermally modified pine | Chemical-free class 3, stable, modern grey | Brittle: we pre-drill everything |
| WPC / composite boards | Zero-maintenance claim, dead flat | Not wood: HS 3925/4421 debate, quote separately |

Sold three ways — parcel-first online brands, palletised garden-centre retail, and oversized hospitality planters.
Liner declared for vegetable and herb beds; PEVA free of phthalates.
Class 3/4 retention record, or chemical-free thermally modified pine.
Harvest geolocation data on request for your due-diligence statement.
One bed per carton under 25 kg, engineered for carrier networks.
For EU and UK shipments we supply the EN 335 use-class declaration, treatment retention certificate and EUDR-ready harvest data; for the US, Prop 65 coating statements and a TSCA determination (solid timber is out of scope). Full document list on the certifications page.
The answers below are the ones we give on the phone. Anything missing, ask on WhatsApp.
ACQ in class 3 with a liner barrier is the accepted industry construction for vegetable beds in the EU and US, and we recommend the PEVA liner for herb and root-vegetable lines. What we will not do is print an organic-input claim. Certification bodies disagree, so that is your call. Untreated larch or thermally modified pine is the clean-claim route at 8–15 % more FOB.
Packed as a parcel, not a de-palletised retail unit, it survives: one bed per carton, 40 mm foam at board ends, rigid sleeve for brackets, ISTA 3A drop test on the finished design. Damage claims on this SKU have run under 0.8 %.
Yes. Elevated beds at 750–900 mm are our fastest-growing size, driven by accessible gardening and balcony grow-food. At that depth we specify 28 mm T&G boards plus a mid-rail, and the FOB moves into a higher band.
200 pcs per size, so a first order is 600 pcs. Below that we can supply from stock dimensions in two finishes; those carry no custom carton print or liner upgrade.
Larch or ACQ pine troughs and window boxes, floating base, welded liner, brackets, quoted per drawing.
Solid pine/poplar, mitre + spline, 3-coat paint, acrylic glazing. MOQ 500 pcs mixed sizes, quoted per drawing.
31 stocked profiles, 15–90 mm face, raw to foil, 2,000 m MOQ, quoted per metre, the repeat-purchase line.
We quote within 24 hours with a spec sheet, tiered FOB, packing list and carton count per container.