The construction and material choice for raised or bordered bed systems is seemingly vast and endless, as are the opinions of material choice and construction methods. Bed size, treated or untreated timber, all lay waiting to confuse anyone wanting to start out.
Detailed below is my chosen method of construction. I'm not saying that it is right or wrong, only that it worked for me.
The vegetable garden hadn't been touched for many many years, and the first job was to clear the site. Bonfires were the order of the day, then a mini digger was used to double the site and install some land drainage pipes. Thankfully the site was pretty much level to begin with, so this made life much easier.
Once the site was clear and level, the setting out process could begin. For once in my life I actually decided to draw the project out as a scale drawing. Something that was well worth doing as it gave me scope to cut out and design the beds sizes just as wanted them.
Through research and asking questions, I decided that the outside pathway should be 900m wide and the the pathways that run throughout the bed system should be 700mm wide, which is ample room for a wheelbarrow. In hindsight I could have just made the outside pathways 700m as well.
The first job was to set out the outside pathway edging. The material choice for this was 100mm x 25mm sawn pressure treated timber and the pegs to fix it were 47mm x 47mm sawn pressure timber. To save money I bought the timber for this in 5.4m long lengths and then cut and pointed them my self to suit. This saved quite a junk of money. The edging board was joined together in one long length, set in position using steel pins, then leveled using a laser level. Peg distance were set at 650mm centres, and positioned by first making a whole with a steel crow bar, then they wee banged in to a flush level, fixed with two screws per peg, then finally a back weather was cut using a hand saw.
Lovely sleet and rain!