Does one have to have any special tools putting a Rolling Planter together?
Unlike other planters on the market, our planters are completely made and assembled here in Ventura, California from 95% USA made parts and 100% USA labor. When we started to develop our planters we were so disgusted by planters at the local nurseries and lumber stores. The labels, signage and information online stated they were easy to assemble, were supposed to be made of 100% one wood source or another, didn't require any special tools, had 
all the materials enclosed, etc. After purchasing and bringing home the planters the horrors began. We found parts missing, we needed to purchase a special screw driver /tools, the wood was warped and could not fit properly or could not go together without some sort of modification.
Worst was the companies that stated their planters could be assemble in less than an hour, half hours, and most ridiculously 10 minutes. Simply put, our boxes take over 3 hours to assemble after all the part have been seasoned and cut. All our boxes are firmly bolted and fastened together with case hardened steel fasteners, not pegs, rods, staple or nails
that do compromise the integrity of the structure. We are sure many could put our planters together if they were kit form, but why? You are paying us for a finished product not one that you have to complete.
Why does the planter have a black liner?
There two fundamental reason why the planter has a black liner. One water conservation and two, longevity.
Conservation, by lining the planter with plastic water does is not allowed to seep or evaporate out of the side or the bottom. With reduction of surface area to evaporation and seepage loss our 
planters conserve water than waste water. To incur greater evaporation loss, one should mulch the topside soil surface after the plants have matured. Two to three inches of mulch helps reflect the sun, and hinders surface evaporation.
Longevity, the black liner seals the wood from constant water, fungus, and insect contact. By limiting the contact of the wood to these elements, the wood does not rot or be able to consumed by ground boring insects, fungus, bacteria etc. We use cedar planks for the planter's structural side panels. Cedar is renown to have a high concentration of tannin. Tannins preserve and resist insects; also it impedes rot. However in time and depending on weather and other natural circumstances the tannins are released and the the wood becomes vulnerable to all the elements it was resistant prior. Depending on the grain of the wood, especially new growth lumber, which is now all the lumber the boxes become extremely vulnerable in just months a couple of years. With the liner we buy time. We actually buy the length of the time the liner last. Currently the liners we had in our first boxes we ever built show no signs of detioration. These boxes are now 12 years old and the wood looks as if it was a year old. No rot, no fungus, no insect damage. It works!!!
Is the liner solid and if so how does the water release itself?
Each box has two to four plumbed 3/4" drains drilled and sealed into the liner. The drains are counter sinked and securely mounted with a large threaded nut. The bottom of each spout has a ribbed collar where a 3/4" tube can be attached to allow water to directed to a dish, another planter or to a drain.
How long does the liner last?
Our oldest planter we have made are now 12 years old. The liners show little to no wear, they used a 12 mil thick liner. One does have to watch how they us shovel, spades, rakes and other sharp apartuses. If the liner has been punctured it needs to be mended. Call us for patching material and directions. The current liner, pond liner is 20 mil thick. It is super tough!
What kind of surfaces can the raised bed be placed on other surfaces than concrete, brick, asphalt.
Yes, the non-mobile raised bed units can be placed on any surface: concrete, brick, asphalt, soil, sand, etc. Once the unit is situated and soil has been placed within, it is not as easy to move as is the mobile version. It will not sink in the soft soil due to it is built on a solid sled base with large plastic blocks. The sled base has enough clearance that standard furniture dolly or two can be slipped under it for later manageable mobility.
What is the estimate life span for the Raised Bed Planters?
By using the best natural and man developed materials, we anticipate one to obtain many years of use from our Raised Bed Planters. The side walls are made of Western Cedar. Cedar has natural tannins that provide protection from insects, mold and other rot and insect causing deterioration. Because cedar and that fact redwood are not known for their strength as fir lumber, we use fir all structural frames and chassis.
Please feel free to ask any question.
Call us at 805-643-5902 or
write: rollingplanter@gmail.com