General requirements

075 FABRICATION & FIXING
0751 GENERAL

Actual dimensions of scantlings for both carpentry and joinery shall not vary from the specified dimension and shall be uniform in thickness through out. Boards shall hold up to the specified thickness and timber shall be as long as possible and practicable in order to eliminate joints.

Carpentry work shall be left with sawn surface except where other finishes are specified. Carpentry work shall be done in milled timber, if the finishes to be applied require so.
Profile of sections for carpentry & joinery shall not be modified from those shown in drawings or specified in schedules without the prior approval of the Engineer.
Joinery shall be accurately set out on boards to full size for the information and guidance of the artisans before commencing the respective work.
Joinery shall be cut and framed together soon after the commencement of the building or as is practicable, but is not to be wedged up or glued until the building is ready for fixing. Any portions that warp, wind or develop shakes or other defects within the Maintenance Period, after completion of the construction shall be removed and new ones fixed in their places together with all other related works, which may be affected thereby.
Joinery shall be properly mortised, tenoned, housed, shouldered, dovetailed notched, wedged, pinned, etc. as directed by the Engineer and all properly glued up with approved glue.
Joints in joinery must be specified or detailed, and so designed and secured to resist or compensate for any stress to which they may be subjected. Nails are to be punched and stopped.
Joints are to be made not tight where shrinkage is liable to occur and glued where sealed joints are required.
Glue for load bearing joints and where conditions are damp must be resin type.

Exposed surface of joinery work shall be wrought and all arises " eased off" by planning and sand papering to an approved finish.

Beads, fillets and small members shall be fixed with round or oval brads or nails well punched in and stopped. Large members shall be fixed with brass screws, the beads let in and paletted to match the grain.
Ground for external and internal work shall be in approved timber. Holes for plugging in grounds must be completely filled with the grounds.
Grounds for fixing joinery shall generally be placed at 500mm center-to-center intervals.
Hardware (Iron mongery) types and locations for each joinery items shall be verified prior to cutting, rebating or any work associated therewith.
Hardware for joinery is dealt with in Section 8 of this Specification.
Paints for carpentry & joinery are dealt with in Section 8 of this Specification.