| CODE |
DESCRIPTION |
COMMENTS |
| 1" (example) |
One inch |
|
| 1' (example) |
One foot |
|
| 2/150x50 (example) |
Two lengths 150mmx50mm timber |
Two lengths of 150mm x 50mm boards nailed together to make one beam, header or lintel 150mm x 100mm in size. |
| 2/2x6 (example) |
Two lengths 2" x 6" lumber |
Two lengths of 2x6 (2inch x 6inch) boards nailed together to make one beam, header or lintel 4x6 in size. |
| 1mm (example) |
One millimetre |
|
| 1x2 (example) |
Piece of lumber 1 inch thick x 2 inches wide |
When relating to the size of timber /lumber, the thickness is stated before the width if using imperial measurements (feet and inches) but the opposite applies if using the metric system. For example; 2x4 (imperial inches) = 100x50 (metric millimetres) |
| 2x4 (example) |
Piece of lumber 2 inches thick x 4 inches wide |
When relating to the size of timber /lumber, the thickness is stated before the width if using imperial measurements (feet and inches) but the opposite applies if using the metric system. For example; 2x4 (imperial inches) = 100x50 (metric millimetres) |
| 50x25 (example) |
Piece of lumber 50mm wide x 25mm thick |
When relating to the size of timber /lumber, the thickness is stated before the width if using imperial measurements (feet and inches) but the opposite applies if using the metric system. For example; 2x4 (imperial inches) = 100x50 (metric millimetres) |
| 100x50 (example) |
Piece of lumber 100mm wide x 50mm thick
|
When relating to the size of timber /lumber, the thickness is stated before the width if using imperial measurements (feet and inches) but the opposite applies if using the metric system. For example; 2x4 (imperial inches) = 100x50 (metric millimetres) |
| Actual Size
|
Actual Size
|
The finished size as opposed to the nominal size of a piece of wood.
|
| BF |
Board foot |
A form of wood measurement, where one board foot equals the volume of a board 1 inch thick, 12 inches wide, and 12 inches long. A board foot is equal to 144 cubic inches of wood.
FORMULA: (Thickness x Width x Length) / 144 = Board Feet
|
| Bds |
Boards |
|
| Box |
Rough grade timber |
|
| BT |
Boric treated. Internal framing |
|
| C.F. |
Chemical free |
|
| CD |
Ply wood. Defects one side. Filled and sanded one side. |
|
| CGL |
Common Grade Lumber
|
Lumber with obvious defects
|
| Ctl |
Cut to length |
|
| Clears |
Timber without Knots |
|
| D4S |
Dressed four sides |
|
| DD |
Ply wood. Defects both sides |
|
| D/G |
Dressing grade, but a lower grade of timber |
|
| F1 |
Number one framing |
|
| F2 |
Number two framing |
|
| FBM |
Feet, Board, Measure |
|
| Fj |
Finger jointed |
|
| Full Sawn |
Lumber cut, in the rough, to its full nominal size.
|
Also called rough sawn in Australasia. |
| GL |
Green Lumber |
Freshly cut lumber that has not had time to dry. Moisture content in excess of 19%.
|
| H1 |
Pressure-treated (P/T) |
Treated for inside use. Dry areas |
| H3 |
Pressure-treated (P/T) |
Treated for outside use, but not in ground |
| H4 |
Pressure-treated (P/T) |
Treated for outside use and in ground |
| H5 |
Pressure-treated (P/T) |
In ground structural applications |
| H6 |
Pressure-treated (P/T) |
Salt water immersion |
| KD |
Kiln-dried |
|
| KDAT |
Kiln dried after treatment
|
Lumber that has been kiln dried to 19% or less moisture content after being pressure treated.
|
| L/F |
Lineal (running) foot |
A measurement of the length of a board.
|
| L/M |
Lineal (running) metre |
A measurement of the length of a board.
|
| Lumber |
Wood |
Logs which have been sawn, or sawn and planed, and cut to length.
|
| MDF |
Medium density fibreboard |
A special type of tempered hardboard with a fine, smooth finish. MDF is used in cabinet making.
|
| Merch |
Merchantable.H3, usually fencing |
|
| M/G |
Gauged smooth finish |
|
| MSG |
Machine stress graded |
|
| Nominal Size |
Nominal Size
|
The rough-sawn size of a piece of lumber. Before the lumber is planed or dressed.
The nominal size is usually greater than the actual dimension. e.g.:2 x 4 actually equals 1 1/2" x 3 1/2".
|
| p/p |
Pre primed |
|
| Premium |
Contains some small tight Knots |
|
| P/T |
Pressure-Treated Lumber
|
Pressure sprayed lumber to lengthen its life expectancy for outside use or inground applications |
| Rad |
Radiata. Species of pine most commonly used in NZ |
|
| Random |
Mixed lengths, as it comes off the stack |
|
| R.L |
Random lengths |
|
| R/S |
Rough sawn |
|
| Sawn |
Rough sawn |
|
| SED |
Small end diameter (for round poles) |
|
| Selected |
Lengths selected to order |
|
| Siding |
Exterior finish on walls |
May be made from wood, pressed wood by products, hardboard, vinyl, or metal. |
| SPF |
Spruce, Pine, Fir
|
Indicates that the piece of wood is from the Spruce, Pine, Fir family.
|
| Standard |
Contains small and large knots |
|
| Veneer |
A thin sheet of wood cut from a log. |
|
| Wane |
Wane. |
The presence of bark or lack of wood from any cause on the edge or corner of a piece of wood.
|
