Note: this is the standard (ft and inch) version. For the metric version click here
Step ten: The windows
Draw a window pattern such as an oblong, heart or 4 squares (keeping within the perimeters of the window frame) and cut out with a jigsaw. First drill a hole through the plywood using a drill bit large enough to make a hole that will accept the jigsaw blade.
Once the windows are cut out, cover with an oblong piece of 1/8" acrylic sheet (plastic glass). Ensure the acrylic sheet is larger than the window holes to allow for waterproof mastic sealant and screwing.
The tops of the acrylic sheet on the sidewalls should tuck under the existing flashing.
A trim can be fixed around the window.
Step eleven: The handrail
Cut the 1 1/2" x 3 1/2" top and bottom rails to length (to fit between the posts) and rebate them (cut a channel along the centre of each piece).
On one side only, pencil two lines 1" apart along the length in the centre of the rails.(See handrail detail diagram). Set the blade on your circular saw to a depth of 3/4" and do repeated cuts along and between the two pencil lines.
Clean out with a chisel.
This will give you a rebated groove 1" wide x 3/4" deep along the centre of the rails.
Cut 1x6 lumber into 22 1/2" lengths and implement a pattern of your choice.
The pattern shown in the handrail detail diagram is just one idea.
Make the pattern on one piece of board and use that as a template to do the rest.
Fit the boards into the rebated grooves in the top and bottom rails.
This is best done by laying the top and bottom rails on the ground and then inserting the boards into the grooves.
If the number of boards does not work out exactly, one of them will need to be marked and ripped (cut) lengthwise.
When one section is finished, tie a rope around each end so the boards will not fall out while that section is being installed.
Nail each section in, and fix the rails to the posts with 4" galvanized nails.
Do this to all 3 sections. All Done. Eazy with a z.