On 10/12/2017 6:28 PM, Ed Pawlowski wrote:
On 10/12/2017 6:14 PM, FrozenNorth wrote:
On 2017-10-12 5:59 PM, -MIKE- wrote:
https://photos.app.goo.gl/DqXrs5DI2roJTli22

I need to replace the white board above this garage door. The 2x12 is
rotted out pretty bad. It will just fall out when poked with a
screwdriver or putty knife, so I'm going to replace with a new,
treated 2x12.Â* (Client wants cheapest option.)

What I need help with is figuring out how to transfer that arch to
the new 2x12. This isn't an arch that was drawn with a radius or
trammels. If this was a perfectly cut arch, I could just determine
the radius by bisecting the chords and extending perpendicular lines
to find the radius.

If you look closely, you will see that it's not even and the arch
"flattens out" near both ends. So I believe I'm left with trying to
transfer the exact line of the bottom of the soldier course of bricks
to the new 2x12.

Remember, the existing 2x12 will not come out in one piece or even
several pieces which could be reassembled to use to trace the "arch"
onto the new board. It's pretty much, mulch, held together with paint.

Any ideas?


Large long roll of paper, and tape, make a pattern then proceed with
the demolition?


I would do that as first step but before cutting the wood, I'd transfer
it to cardboard or hardboard to be sure of the fit.

I'm impressed that the builder made the arch like that.Â* So many
buildings are just plain boxes.


Well IMHO technically the builder made a fancy but poorly thought out
design. The bricks should never be sitting on top of wood. That
designed was destined to fail.

How this was done,,,,

The brick mason made a template to hold the bricks into that arch
design and used the same template to transfer the arc to the 2x12.

Or the 2x12 was cut and in place and the brick mason stacked bricks on
top of that.