Tool for flush cutting nails under tack strips?

My advise would be to pull the tack strip up. First of all the nails are hardened to make it possible to dive them into concrete, which means you’ll go through many blades. Secondly, they are only about a half inch long so popping them out with a pry bar is fairly simple, granted there may be some chipping around the nail holes from pulling them out but it can’t look any worse than the marks that would be left by an oscillating blade.

pry them up

I used a flat “molding” bar and popped them up. It sometimes leaves a small crator but I thought that was what thinset was used for. I am doing that now.

Gary – was this advise from a professional terrazzo installer? I agree with everyone – get the strips the heck out of there. From everything I’ve ever read, and all of the tile jobs I’ve done – you don’t want anything on the floor – period. I’ve never done terrazzo, but I would assume anything left in the floor would telegraph to the finished product – even with poured concrete over it. The nails left in the floor would surely move and pop up from the floor.

Can’t wait to see the finished product!!! Good luck.

-- No matter how many times I measure, I always forget the dimensions before I cut.

Yep, I agree with everyone else too. Ive taken up a ton of tack strip.

I have used both a flat bar and a large heavy duty scraper and just wacked it towards the wall and it pops the strip up and the nails probably about %75 of the time. It can be tough on the wrists though.

Also, sometimes the nails would just break if you took a hammer and pounded them into the concrete. They either break or go deeper into the concrete.

Hardened nails don’t like to bend much without breaking.

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