Table of Contents
- 2Wood sizes and measurements
- 3Step 1. The greenhouse base
- 4Step 2. The side wall-frames
- 5Step 3. The roof frame sections
- 6Step 4. Erect the side walls and roof sections
- 7Step 5. The end wall frames
- 8Step 6. The doors
- 9Step 7. The windows
- 10Step 8. The greenhouse cover
- 11A 30° angle pattern and a 60° angle pattern
- 12Your project photos
Timber, lumber. The hard fibrous lignified substance under the bark of trees sizes and measurements
This projects is in both Standard. Feet and inch measurements. (inches) and Millimeter measurements. (Abbreviation for millimeter which is a metric unit of length equal to one thousandth of a meter. 25.4 mm equals one inch.).
All measurements are given in inches first followed by millimeters (mm) in brackets ().
The size of the framing wood referred to in his project is the The finished (dressed) size as opposed to the nominal size of a piece of wood., which is the size of the wood after it has been Surfaced; planed; smooth; even surface; gauged. (smooth, planed, finished).
When the wood is dressed, the actual size is then less than the The rough-sawn size of a piece of lumber. Before the lumber is surfaced, planed or dressed. The nominal size is usually greater than the actual dimension. e.g. 100x50 (2 x 4) actually equals 90x45 (1 1/2" x 3 1/2")..
For example: 2″ x 4″ (100 mm x 50 mm) when dressed may be 1 1/2″x 3 1/2″ (90 mm x 45 mm) actual size. The actual sizes can vary slightly from place to place.
Note: The imperial sizes are not an exact match to the equivalent metric sizes. A structure built using the imperial measurements (ft and in) will be approximately 1.6% larger than the same structure built using the metric (mm) measurements. The imperial measurements are more suited to North America. The metric measurements are more suited to Australasia.
About the angle cuts
There are two different angle cuts required for this project. One is 30 degrees A line across the face of a piece of wood (at right angles to the length) is a square line. A line deviating from the square line is off square. Off-square refers to how many degrees the off square line is in relation to the square line. For example, a line at a 5 degrees angle to the square line, is 5 degrees off square., the other is 60 degrees off square.
To cut the 30 degree angle, simply How much the teeth are angled out on a circular saw blade. the blade on your miter saw to the required angle. The 60 degree angle will have to be cut with a circular saw, as miter saws will not do such a cut.
There is a 30 degree and a 60 degree angle pattern on page 11.
You will need
Around 330ft (100 meters) of 1 1/2″x 3 1/2″ (90 mm x 45 mm) Pressure treated. Refers to lumber that is treated in such a way that the sealer is forced into the pores of the wood. Refers to lumber pressure sprayed with chemicals to lengthen its life expectancy for outside use or inground applications., or natural decay-resistant wood for the frame. Some will need to be ripped down for parts of the windows and doors.
36ft (11 meters) of 4″ x 4′ (100 mm x 100 mm) treated for the base (Rough sawn; Not gauged, planed or dressed. wood will do).
10ft (3 meters) 3/4″x 7 1/2″ (190 mm x 19 mm) treated A piece of sawn, or dressed lumber of greater width than thickness. Usually 19mm (3/4") to 38mm (1 1/2") thick and 75mm (3") or more wide. for the Exterior horizontal visible flat front trim board that caps the rafter tail ends..
I Any broad, thin surface. of 4ft x 8ft x 3/8″ (1200 mm x 2400 mm x 10 mm) treated A piece of wood made of three or more layers of wood veneer laminated together with glue. for the gussets.
350sq ft (30sq m) ultra-violet-resistant polythene for the covering.
You will also need miscellaneous such as nails, Covered with a protective coating of zinc. plates, strapping, hinges, handles, latches etc.