Removing chipboard floor - best tool for job?

[minimoog]

I'm replacing a warped and swollen chipboard bathroom floor. The new floor will be ceramic tiles over plywood on joists.

The boards go under the walls on three sides of the room - what is the best way to cut right up to the edge of the wall? I thought of some sort of mini circular saw blade mounted in a drill but I can't find such a thing (not too safe perhaps). Would a reciprocating saw be best?

Thanks for your suggestions.

 

[JerryM]

i don't believe there is anything on the market that will help.

the only power tool i've found any good for cuts close to walls is a jig saw. i have a circular saw but that can't get close enough.

i find a pad saw is sometimes useful compared to other manual saws. i also find stitch drilling say 6mm dia & 10mm pitch 1st helps to speed up the manual cutting. just butt the new boards against the stitch profile i.e. don't fuss trying to get it straight - too much effort for little gain.

i guess the recip saw would work if u can get it in on an angle (tend to be quite big)

 

[big-all]

you can buy a blade specifically for the recip saw and floor boards
http://www.toolstation.com/search.html?searchstr=55248

this blade will fit a bayonet jigsaw where you don't need to rotate the blade through 90deg to insert [unless you remove the baseplate to give clearence]
http://www.toolstation.com/search.html?searchstr=46298

both these blades will get you tight at 90 degrees

a circular saw will get you closest to the edge but still an inch or so away apart from the new dewalt rail system saw thats a few mm

if the joists run parallel to the stud wall there a fair chance the floor is supporting the floor directly or indirectly

 

[JerryM]

big all,

many thanks - had never spotted the special blade for the jigsaw before.

well impressed (even spotted it in my screwfix cat which i keep by my bed)

 

[big-all]

big all,

many thanks - had never spotted the special blade for the jigsaw before.

well impressed (even spotted it in my screwfix cat which i keep by my bed)

you can get the dewalt blade for a fraction off the price on a certain famous wed action site but with postage
although at the mo they are all £9 post free
http://cgi.ebay.co.uk/DeWAlt-Jigsaw...NameZWD4VQQcmdZViewItemQQ_trksidZp1638Q2em124