[vestaviascott]

I just removed a wall between two adjacent closets to make one big closet. Problem is that now I have a 5" gap where the hardwood floors stopped under the wall I just removed.

The boards are cut uneven so I can't just slap two oak planks in the gap. I need to cut the boards off flush on both sides so that I can fill the gap with two 3/4" oak boards and have a minimal amount of slack that I'll have to fill in with wood putty before I stain the new boards to match existing.

What do you recommend to make these cuts? Skill Saw? Plunge Cut saw? Oscillating multi-tool?

All of these have issues with completing a straight cut all the way across the 13 boards I have to cut. Looking for help to make these cuts right.

Here's a pic of the floor...

 

[jlhaslip]

Skil saw what the saw lets you access followed by an oscillating multi tool to get into the corners.
You might want to build a jig for the skil saw cuts to help guide the saw in a straight line.

 

[vestaviascott]

Just saw this, tempting...

http://www.lowes.com/pd_255390-54602-RK3440K_0__?productId=3384332&Ntt=#img

 

[Yodaman]

Skil saw what the saw lets you access followed by an oscillating multi tool to get into the corners.
You might want to build a jig for the skil saw cuts to help guide the saw in a straight line.

This is the method I would use.
Before cutting I would press on strips of painters tape to guard against top side tear out. Use a new blade. When it comes time for the multitool. Use a utility knife to score the cut line. The multi tool will not give you a clean cut like the saw.

 

[joecaption]

#1, No way would I be trying to just fill in that gap unless it was in a closet and it was not going to show.
New wood needs to be woven in so the repair will not stick out.
Make two cuts with a circular saw set to 3/4" deep 1/2" apart all the way to the next butt joint, pry out that section, sometimes it makes it easier to pull it out by inserting a screw to use as a sort of handle.
Then drive in a flat bar to pull out what's left keeping away from the T & G.
Cut off all the old nails with a sawsall with a bimetal blade.

 

[Mort]

A track saw would be ideal, but that's a huge investment for one cut.