Wooden Planter Design

DeepStream Planters will last decades while Carpenter built planter construction  will only last 3 to 5 years. 

DeepStream's Commercial Wood Planters have a hidden aluminum frame

DeepStream’s Planters are a 3-part engineered system modular assembly of replaceable parts which incorporates DeepStream’s trademark marine anodized aluminum legs, tropical hardwood or maintenance free recycled plastic lumber panels, and sturdy aircraft aluminum frame that supports a food safe, 100% recycled LLDPE waterproof liner.

Don’t confuse these planters with carpenter built planters that will fall apart in 3 to 5 years. Deep’Streams engineered system internal aluminum frame supporting the liner, with advanced drainage solutions, allows for a Lifetime Structural Warranty. The aluminum frame also allows you to add accessories like casters, screen wall, trellises, and more.

If you’re an owner or manager of a property where a wooden planter will be placed give serious consideration to planter construction techniques. Consider what it will mean in terms of cost and disruption to go back and replace or repair carpenter built planters, especially on rooftops and balconies, every 3 – 5 years.

Click to see more info on DeepStream's 3-component engineered commercial planter system with a hidden aluminum  frame supporting a waterproof liner from trademark marine anodized legs.
DeepStream’s 3-component engineered commercial planter system with a hidden aluminum frame supporting a waterproof liner from trademark marine anodized legs.

With DeepStream’s wooden planter design all parts are replaceable making maintenance, refinishing, and repairs quick and easy.

DeepStream-7 year old unmaintained pre-refinished planter in place with liner removed
DeepStream-7 year old unmaintained pre-refinished planter in place with liner removed
DeepStream 7 year old refinished planter back in place
DeepStream 7 year old refinished planter back in place after sanding off .014″ and applying Ipe Oil.

Even stainless steel fasteners are galvanically isolated by using a proprietary dielectric paste so that they may be removed easily years later to replace parts or refinish the planter easily. the before and after pictures of the 7 year old planter shown in pictures above only had the original coat of factory waterproofing and no maintenance.  The “fresh” look was achieved by sanding off just.014” of the 3/4″ thick planks exterior.

Why? Each plank of a wooden planter is cut from a different part of the tree ,or even different trees. This means each plank has its own differential rate of expansion, splitting, and warping when wetted. This makes dimensional stability using standard wood-on-wood construction in two dimensions impossible to maintain over time, and shipbuilding techniques and maintenance are far too costly for planter construction.

Tropical Hardwood properly maintained will last for decades in DeepStream's aluminum frame while recycled plastic lumber will be maintenance free
DeepStream Ipe planks after 7 years. Unmaintained on left. .014″ sanded off and and oiled on right

Wood on wood planter construction uses carpentry techniques that fasten wood to wood, and planters tear themselves apart with the expansive forces that wood exerts through repeated wet and dry cycles.

Problems with carpenter built wood planters
Problems with carpenter built wood planters

For centuries, wood dowels have been inserted into holes drilled into rock, then soaked with water. The expansion force of the wood is thus harnessed to crack blocks off marble and granite for construction, even though the blocks are hundreds of times thicker than the thin wooden dowel. This is the same action at work on a carpenter built wood planter splinting seams apart.

Problems with carpenter built wood planters
Problems with carpenter built wood planters,

In addition, most wood planters lack adequate isolation from the soil and the deck or sidewalk, which promotes fresh water rot, water entering vertical planks creates cracks as you see above and below.

Problems with carpenter built wood planters
Problems with carpenter built wood planters
Problems with carpenter built wood planters
Problems with carpenter built wood planters, without proper liners the soil in contact with the wood creates rot.
Problems with carpenter built wood planters
Problems with carpenter built wood planters, rotting from the bottom up.

DeepStream uses proprietary marine anodized legs and stainless steel fasteners to clamp the wood and direct the expansionary forces up the channel so that the wood can expand and contract at different rates without affecting the planter’s structural integrity.

DeepStream Designs proprietary marine anodized extruded aluminum structural legs
DeepStream Design’s proprietary marine anodized extruded aluminum legs are engineered to support a hidden structural aluminum frame which supports the waterproof liner and HDPE feet to isolate the planter from contact with soil and the ground.

Unless directed to do so by a customer, DeepStream never uses paint or powder coating, which will fail in 3-5 years. If you order environmentally friendly maintenance free recycled plastic lumber they may be cleaned with a pressure washer.

7 year old Mariner leg

Virtually blemish free 7 year old proprietary marine anodized aluminum leg after simply wiping down with mineral spirits

Large Wooden Planter: comparing real wood to recycled plastic lumber. Click  to see more about recycled plastic lumber planters
Large Wooden Planter: comparing real wood to recycled plastic lumber

For even lower maintenance cost and greater longevity consider ordering DeepStream’s recycled plastic lumber planters and do your part to save the World’s tropical hardwood rain forests.

The commercial grade rigid plastic liners, mounted on an independent aluminum frame, contain the soil and prevent contact between the soil and the wood, preventing rot.

16 sizes of rugged waterproof stock planter liners and custom welded liners to any size: click the picture for more information
Lightweight wood planters need liners to prevent them from rotting. Here you see 16 stock sizes of rugged waterproof, food safe, plastic planter liners with advanced drainage Custom welded planter liners are available in any size.

The waterproof planter liner with advanced drainage is an important feature of DeepStream’s commercial planter system. Container grown bushes, small trees, and perennials require repotting from time to time and DeepStream’s liners tapered shape allow for easy replanting and conditioning in the spring.

Selecting Planter Liners

Selecting planter liners with the features your project requires will save you time, money, and effort.

DeepStream's rugged waterproof recycled LLDPE food safe plastic liners tapered design, with advanced drainage, makes them easy plant and economical to ship: click for detailed info and prices.
DeepStream’s rugged waterproof recycled LLDPE food safe plastic liners tapered design, with advanced drainage, makes them easy plant and economical to ship.

Major considerations when selecting planter liners are the shape of the planter, the material the liner is constructed with, the location of drain(s), and size relative to your landscaping requirements.

  1.  Selecting planter liners with a shape tapering to a smaller base makes for repotting slip-out easy and if they stack then you save money shipping.
  2.  Rugged commercial grade 3/16″ walls from UV-stable, 100% pre-consumer recycled low-density polyethylene, or polypropylene are both flexible and food-safe, they will last decades in the sun and unburden landfills as they are recyclable materials.
  3.  Side wall, not bottom drain, aids drainage. Is the drain threaded for proper drainage systems accessories if required by your locations.
  4.  There is a water reservoir below the drain for the tap root while providing a place for “fines” or clay to settle to prevent drain blockage.
  5. Liner depth is determined by the requirement of the plants you have selected.
DeepStream's tapered liner with advanced drainage and the components of the 3-part drain pad with Bio-Barrier to prevent root blockage: click for drain pad details
DeepStream’s tapered liner with advanced drainage and the components of the 3-part drain pad with Bio-Barrier to prevent root blockage

An important consideration to successful landscaping in planters is starting with the right soil mixture and drainage for your plants.

  1. You want your container to drain well while retaining moisture but not hold water. Do not use “dirt” or any material with clay which will block drains.  Perlite is a good light weight additive if your trying to improve quick drainage, Vermiculite if your trying to retain moisture. Very course sand, like commercially available “paver base” if you need weight to prevent toppling in high winds but not fine “beach” or “mortar” sand as they will immediately block your drains.  Remember many plants have specific soil PH needs.
  2. Geo-textile fabric and drain board to provide filtration and space over drain.
  3.  BioBarrier (TM) with a plastic-embedded non-systemic herbicide, with a lower toxicity than table salt or aspirin, that creates a 2″ thick root deflection zone around the drainage material by preventing root cell tip division. The product, guaranteed effective for 15 years, has been used as a weed control system for more than 35 years in agriculture to prevent weed growth between row crops.  Drainage pads are placed over the drain hole.
  4.  To prevent clogging you need to slow the water so that the fines in the planting medium settle to the bottom and not onto the filter medium. When selecting planter liners pick one with sidewall drainage, not on the bottom. This is an integral part of the drainage system as it allows the “fines” to settle to the bottom below the sidewall drain. Traditional pea gravel is too large and the water will flow rapidly to the drain and clog it with fines.  Fine sand will flow too slow and form an impenetrable layer clogging with fines. There is no need to put rocks or gravel in the bottom of a plastic pot, it only raises the water table.

It is best to use a 2 to 4 inch thick covering of very clean, very coarse sand of between 1 and 2 mm particle size mounded over the drain filter.   For reference, the wire of a medium paper clip is 1 mm. We have had good results here in Florida with “rubber mulch”, but then we can get 6″ of rain in one day.

Paver Base or similar mediums slow water flow improving planter drainage
Paver Base or similar mediums slow water flow improving planter drainage

“Paver Base” is an acceptable readily available alternative from most large home improvement stores and will work in our planter liners with a side drain as the well below it provides a place for fines to settle.  Rubber mulch may also work for you.

For more detailed information on drainage see this related post:

To see a step by step guide to repotting a plant in the spring for the best plant healt yu will find this article helpful: