Garden engineering: Trellis and gate

I label garden projects and thoughts about garden projects as "garden design".

Sometimes, it's enough to take a picture to visualize how experienced gardeners implement projects.

These are Tayberry bushes (growth habit looks like a blackberry) in England.

Of note is the wire (appears to be a medium gauge of galvanized), staple securing the wire and their method of keeping the uprights from bending inward. The garden timbers appear to be larger and longer than the commonly available 8' lengths in the US.

The split rail at top keeps the uprights from bending inward.  The fact that it's round and extends slightly beyond the edges of the uprights allows it to shed water more readily to avoid rot.  The timbers may be treated - there's a slight green hue in this picture as I look at it now and memory isn't firm on the recall.  The picture below also shows the tensioning method for the horizontal wires.  The berries are mulched in mown grass, presumably from a nearby field.

None of these design aspects are difficult, but having done the job with less I appreciate seeing a properly designed structure.

Nothing to see here except this great looking weathered gate.  Note the top of the gate post is rounded which has the effect of avoiding standing water which can promote rot.  It hasn't been entirely successful, but then again it looks quite old.

Here's how a rose is tied to a wire trellis.  The extra twist(s) between rose and wire acts as a bumper to prevent the rose from chafing on the wire, I think. 

Close up of rose tying technique.

Old timbers are still viable in England, perhaps because lower winter temperatures kill off some of the wood-eating pests that we have here.  The gardens we visited are large enough to generate as excess many of the natural timbers that saw in use - it's the height of ecological awareness to reuse on the spot instead of disposing.

Here's two cross members secured with a rusty metal bolt or pin.  I wish I'd paid close attention since it could actually be pinned with a wooden dowel - I can't tell from the picture.

Of course these are somewhat high end gardens with staff to maintain them.  Who knows how artfully these are reconstructed.  Still, the overall effect is quite nice.

Here's a new timber tripod with a vine climbing it.

I wonder if there is a metal pin of some sort that joins the three and is covered by the sisal rope.