Instructables

Step 4: Cut dowels

Your local lumber store should have long lengths of dowels for sale by the foot. Select the thickness of dowel based on the heaviest person intended to use this rope ladder. Using hardwood is more expensive but will result in a more robust ladder, if you have just soft wood available consider stepping-up the thickness of the dowels to ensure they hold your weight or use a shorter rung width. Inspect each dowel to ensure there is no warping, splits, or other defects.

top dowel:
Once you've gathered your wood choose the straightest and cleanest piece for your top dowel.
From the measurements taken earlier:
window opening: 103cm (40.5")
allowance on each side:

2x10cm (4")

top dowel length: 123cm (48.5")

rungs:
This design calls for ladder rung width of 30.5cm (12") in length. Based on my calculations I figured 12 rungs would put me close to the ground. Cut each dowel to length.

When finished, you should have one long dowel and several shorter, equal length dowels for your rungs. Gather up your goodies and head on back home to finish fabrication.
skimmo4 years ago
did you really use a hand saw? a drop saw would have made it 1000% faster