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A Guide to Rails Installation

Arris Rails

Ended arris rails are installed by slotting them into the mortice hole in the post during erection of your garden fencing.

Un-ended arris rails can be ended with a handsaw or adze and then slotted into the post the same way as an ended arris rail. The other method is to use arris rail support brackets. These simply screw or nail into the rail and onto the post.

Cant Rails

Cant rails are installed by bolting to a concrete post or screwing them to a timber post. Another method is to buy posts which have been notched to suit the cant rail. (Available in Concrete only, stocked at AVS Peterborough branch.)

Counter Rails

A counter rail is a piece of timber that is nailed or morticed into both posts and then nailed to the feather edge. (1 nail every fourth feather edge is suggested.) It can then be used to support a Capping which is nailed to it. 87x38 Rails.

  • The 87x38mm is simply nailed to the vertical posts. One post every 1.5m (for 3.0m rail,) or 1.8m (for a 3.6m rail,) is suggested.
  • The 100x38mm is simply nailed to the vertical posts. One post every 1.8m is suggested.
  • The 100x47mm rail can be used for a simple post and rail fence. It is simply Nailed or Screwed to the vertical posts. One post every 1.8m is suggested, (based on a 3.6m rail, 1.5m for a 3.0m rail and 2.4m for a 4.8m rail.) It is possible to have posts morticed for the 100x47mm rail, but this is less common and is a special order, via the branch itself.
  • When using the 100x47mm rails as joists in decking, two methods can be used. The first is to used Joist Hangers. These are simply Nailed or Screwed onto both the opposing joist/Post and the joist that is being supported.
  • The second method is to simply Nail or Screw, (Using Carpenter Mate Screws or Timberlok Screws.) through the opposing joist/Post into the end of the joist that is being supported.
  • The 150x38mm rail can be used for a simple post and rail fence or as retainer boards in a riding arena. The rail is simply nailed or screwed to the vertical posts. One post every 1.8m is suggested.
  • Machine Half Round Rails

  • The 3.66m x 100mm rail can be used for a simple post and rail fence. It is simply nailed or screwed to the vertical posts. One post every 1.83m is suggested.
  • Peeled Half Round Rails

  • The 3.66m x 100-125mm rail can be used for a simple post and rail fence. It is simply Nailed or Screwed to the vertical posts. One post every 1.83m is suggested.
  • Base Rails

    When using 100x47mm as **noggins simply nail (using 100mm nails) or screw (using 90mm Carpenters Mates) through the existing *joist into the end of the **noggin.

    Key

    *Joists are the main support base rails that make up the underlying framework of a deck. A spacing of 450-600mm would be suggested to suit most deck boards. It would be suggested that you test the spacing by laying some boards down and standing on them. If the boards bow allot then you know the spacing is too much, do this before you screw the boards down, just in case you need to then adjust the frame work.

    **Noggins are a small joist placed between joists as extra support under the boards and for the framework itself. A spacing of 450-600mm would be the spacing suggested to suit most deck boards.

    ***Support beams are beams that are attached to the upright posts, and can be used to support the joists.

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