Table of Contents
Build a gated arbor by Les Kenny
Introduction and lumber requirements
This narrow (depthwise) gated arbor is basically two gate posts with an overhead top consisting of two short decorative beams, two rafters and laths (strips of wood) capable of holding a vine or similar type of plant if so required.
The arbor houses a basic 1800mm (6ft) high gate constructed of 150mm x 25mm (1″x 6″) vertical boards and 100mm x 50mm (2″x 4″) rails and braces.
The arbor and gate give privacy and make an ideal entry unit to fit into a hedge or incorporate into a fence.
This arbor is made entirely of 100×100 (4×4) lumber, excepting for the laths (the thin strips of wood on top of the rafters) which are 40mm x 10mm (3/8″x 1 5/8″) stock or similar.
The pitch (angle, slope) of the rafters (off horizontal) is 18.4°.
That is: a rise of 1 in 3 (or 1/3) which means that the rafters rise 1 unit of measurement for every 3 units of measurement along the horizontal plane (run).
In the United States the pitch is given in inches, with the run (horizontal plane) being 12 inches and the rise being a ratio of that. In this case, the slope of the rafters would be given as 4″ of rise over 12″ of run, which is still the same thing as a rise of 1 in 3 or 18.4°.
Use lumber suitable for exterior use.
You will need….
2 of: 100mm x 100mm (4″x4″) posts 2400mm (8ft) long.
2 of: 100mm x 100mm (4″x4″) beams 300mm (12″) long.
2 of: 100mm x 100mm (4″x4″) rafters 850mm (35″) long.
1 of: 100mm x 100mm (4″x4″) horizontal roof member 1000mm (40″) long.
16 of: 40mm x 10mm (3/8″x 1 5/8″) laths 300mm (12″) long.
6 of: 150mm x 25mm (1″x 6″) vertical gate boards 1800mm (72″) long.
6 meters (20ft) of: 100mm x 50mm (2″x 5″) for gate rails and braces.
You will also need…
4 nail plates approximately 100mmx 200mm (4’x 8″).
3 gate hinges and a gate latch.
An assortment of galvanized nail, including 40mm (1 5/8″) flathead nail for the laths and nail plates, 60mm (2 1/2″) flathead nails for the gate and a few 100mm (4″) nails for the frame.