Wood – How to remove material from this wood beam

routerswoodwoodworking

I am trying to mount a roller shade in between two wood beams on my porch. The problem is that the beams are a hair too close together to accommodate mounting the shade.

I am trying to remove a small amount of material (~1/4") from the side of each wood beam, about 3 inches deep. I've illustrated the problem on this picture.

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I'm unsure which tool or approach would be best to complete this job. I've considered a few ideas:

A straight router cut with a guide on the outside could do it, but the depth of cut I need extends past the capacity of most routers. I suppose I could hammer it out with a chisel but it would take a lot of effort. Another idea I considered was using a power planer to shave off material in large passes, but that approach poses problems considering I'm trying to remove material to a specific depth.

Anyone have suggestions?

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Best Answer

What about trimming the roller shade? Most shades are meant to be trimmed, since manufacturers can't make every single size. See if you can pop off one of the ends, and then cut the rolled-up shade with a utility knife or something similar.