Cutting down wooden sill profile to match existing

[600rob]

Ive got a short section on an external conservatory sill that i need to replace and match up to the existing one.

The stuff that im finding in the local timber yards is a fair bit bigger so im wondering on how best to trim it down to the same cross section in order to match it with the existing sill.

Heres a sketch of the existing sill on the left vs one i found in the timber yard today on the right

DSC_1710

• 600rob
• 3 Sep 2018

Ripping it down and getting the overall depth are straight forward. Its more the getting height on the leading edge to match and how i would get the chamfered edge and the flat on top for the glazing bar to match up with the existing sill without ruining thw overall height.

Also will it be a problem if the drip chanel on the new sill is slightly wider than the existing one?
Ive got a decent circ saw, electric plane, belt sander and other hand tools to help do the job

Thanks in advance.

 

[blup]

I would start afresh with a piece of 4 x 2 redwood, rip down to size the angled part with a circular saw and use a router (or the circular saw again) to create the groove, the rounding over can be done with a sander.

Blup

 

[600rob]

Thanks mate, dont know why i didnt think of trying it that way!

Works out a fair bit cheaper too!