![]() Note a 50 x 25mm timber section may be specified in two ways in a specification or bill of quantities 50 x 25mm un-planed (ex, or sawn) or 46 x 21mm planed, finished or wrot or nominal Nominal sizes are approximately 4mm less than ex. First fix work is generally in sawn or carcassing timber. ![]() ![]() The second fix is the finishing work, usually done after the plastering for example skirtings, architraves and linings and is carried out with planed or finished timber.Įlectricians can lay cables and plumbers can fix pipes in the roof, walls and floor when the first fix is complete, prior to the finishes being applied. This includes, for example stud partitions, floor joists, etc. ![]() To be able to interpret NRM2 □ Work section 16 Apply work section 16 to practical examples.įirst fix usually refers to structural work, which is done before the plastering and finishes are carried out. Objectives for this week are: To understand the scope of the term ‘first fix’. ![]()
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