3 x 22 x 100 x 4800 mm Ungraded Carcassing Treated UC3 Class FSC (We are going to use a barrier of sheet plastic to line the box and on which we sit the box so the contact
with soil will be minimal so class UC4 is not needed here)
1 x 2400 x 100 x 100 mm Post Brown FSC
On this occasion the timber was supplied by a local firm originally called Pightle Builders Merchants, employing local people I know (always try to buy local) Buildbase. Other suppliers are available
The liner can be bought anywhere just Google plastic sheeting landscaping to find the various thickness and grades.
You will need one square 1200 x 1200 mm to act as a weed barrier underneath growing box.
You will need a strip that is 300 mm X approx 4000 mm to line the inside of the walls of the box.
Lowest Level (or Horizon) Farm Yard Manure (FYM) based soil improver: We used 120 litres of Bord Na Mona FYM (this will decompose down as the year goes on)
Middle Level (or Horizon) Peat Free Multipupose Potting Compost. We used 80 litres of Field Peat Free made by Field (Compost) Ltd
Upper Level (or Horizon) Raised bed topsoil: We used Field Number 6 Peat Free Topsoil again made by (Field Compost) Ltd
The quantities being about 300 litres (the volume of the box) we bought locally from Sturmer Nurseries. Field (Compost) Ltd is also a local company, just 6 north of Haverhill so the microbes in the soil will definitely be suited to the local microclimate. Similar products will be available locally. In the UK soil is often transported over long distances for gardening purposes, we have tried to reduce the road miles by sourcing locally and using as far as possible peat free products.
The next step
Tools needed
Saw suitable to cut the wood
Measuring Tape
Electric Drill and suitable bit for screws you will use
Electric Screwdriver or drill with screw head bit
Square
Construction
Step 1