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YARD DESIGN
You may choose a simple conventional design or a modern bugle type yard. depending on your requirements.
Steel Tube, pipe and flat sections, including W-strap offer a variety of alternate panel designs.
PIPE SIZES
The following sizes are suggested. Remember that pipe is measured by its nominal bore and that Galtube* Ultra and Tubline 350 have a higher strength than mild steel pipe.
Corner Gates and posts 50NB
Other posts 40NB
Top rails 25NB
Lower rails 20NB R7 W strap
Vertical supports 25 X 5 flat
PANEL LENGTHS
The standard pipe length is 6500mm. Cut the pipes in either halves or thirds. That is, 3250mm (10''8") or 2160mm (7''2") long. Panels of 2440mm (8''0") result in short offcuts.
Short panel lengths should be used where the fall of the ground needs to be accommodated.
PANEL HEIGHTS
Outside and dividing panels should be about 1000mm high (3''3"). Higher panels may be needed for large sheep.
The draft should be 900mm high while the working race should allow you to work over the rail from the outside if needed. Working races vary from 850mm to 900mm above the finished ground level. Make an allowance for concreting the race at a later stage.
Gates should be the same finshed height as the fence they adjoin.
RAIL SPACING
A number of rail spacings are suggested depending upon the type of sheep handled. Lambs require a closer spacing than a fully grown sheep. Make an allowance for width of pipe.
YARD PANELS
A number of pipe variations are shown. The larger spacing are not suitable for lambs. R7 W-strap forms an effective visual barrier and may be used in yards and gate panels. Pipe panels are better where dogs work through a fence from one side.
BLIND PANELS
Make the panels to suit the standard size of steel sheet (900 x 1800 or 900 x 2400). 1.6mm steel sheet is suitable for sheep yards and is available in either black or galvanised.
RACE PANELS
It is important that posts do not protrude above the top rail of the race to snag drenching and jetting hoses.
The width of the working race may vary from 450 to 600 depending upon your own requirements.
JOINING PERMANENT PANELS
You may find it easier to make all your panels and then join them on-site. You should plan this from the outset.
ON-SITE WELDING
Panels made in the shape of a flag can be easily joint welded on-site by either of the methods shown. Panels may be wire tied together until ready for welding.
Manufactured fittings may be used, however the cost must be compared to that of on-site welding. |
