How to Build a Walk-through Garden Pergola
Page one: Materials list
Page 1 of 4
Before building this pergola........
Check with your local Authority to see if any Building permits, permissions or conditions are required.
Check with the utility companies to make sure the area is clear of underground gas, water, electrical lines etc.
Find out the depth of the frost line in your area and if applicable check to see if the footings require any special consideration.
Usually the bottom of the footings should be below the frost line to prevent movement.
Note: To see how Tim built this pergola click here.
A bit about the lumber
The lumber used in this project needs to be suitable for exterior use and the posts need to be suitable for inground application. The local lumber yard
will be able to advise you on the most suitable lumber for the job.
The lumber sizes referred to in this project are the nominal sizes. The nominal size is the size of the lumber before it is dressed or seasoned. This is the size generally referred to when purchasing from the lumber yard. The actual (or dressed) size of the lumber will be less than the nominal size. For example, a piece of 100x50 (2x4) lumber when dressed may be 90x45 (1 1/2"x 3 1/2") actual size. Please make necessary allowances.
Posts: 100x100 (4x4) - 4 pieces at 3000mm (10ft)
Beams: 200x50 (2x8) - 2 pieces at 4200mm (14ft)
Rafters: 75x50 (2x3) - 8 pieces at 1800mm (6ft). Up size to 100x50 (2x4) or even 150x50 (2x6) if a bulkier look is preferred
Bolts: 12mm (1/2") galvanized carriage bolts 120mm (5") long - 8 of
Nails: 90mm (3 1/2") galvanized - 1kg (2.5 lb) of
Concrete: As needed
Batter boards and stakes: 5 meters (16ft) of 50x50 (2x2) - 8 meters (26ft) of 100x25 (1x4) throw-away low grade wood.