Anchor bolts

Anchor bolts are bolts set into concrete with the threaded end sticking out (cast-in-place). Structures or frames can then be easily screwed to the concrete after it is set. They are generally considered the best way to attach structures to concrete, but can be a lot of work to install. You can buy special bolts with a hook on one end (that goes in the concrete) but any galvanized bolt will do the job. The bolts should be set at least 50mm into the concrete and the length of the bolt you need sticking out will depend on what you plan to screw down with it. For example if you are using 50mm by 50mm framing timber your bolt should be at least 125mm long (50mm in the concrete and 75mm sticking up).

There are other types of anchor bolts that do not need to be case in place but require drilling into concrete, ask your local hardware store for advice.


A bargeboard is a board (usually timber) fastened to the end of a roof to add strength and hide the ends of the roofing material (e.g. tiles or corrugated iron). Bargeboards can be both functional and decorative, adding character to a building.

Effective coverage

Effective coverage refers to the length a material will span, or area it will cover, once overlaps are taken into account. For example, a sheet of corrugated iron may be 900mm wide but once each edge is overlapped with the neighboring sheet it may only cover 850mm. In this case its effective coverage would be 850mm.


Flush means to make straight or level with. In building and woodworking, something is flush when it is nether protruding nor embedded in a surface. For example, if a screw is driven into timber so that the head is level with the surface of the timber then it is flush.


A paling is a length of timber usually fixed in an upright position on a fence. The terms paling, batten and picket are sometimes used interchangeably, although pailings are typically larger and wider.


The sod is the top layer of a typical soil structure, usually consisting of grass, top soil, and the root structure. The sod is usually between 20-30mm thick and can generally be removed in clumps due to the binding provided by the grasses' root structure.