[Fix'n it]

i am going to be installing a few new register boots, 4x10. just like this one.
http://cdn1.bigcommerce.com/server600/1r2fayi/product_images/uploaded_images/ph2.jpg

subflooring is 3/4" x8" planks with 1/2" plywood over that. what i need to know = what is the proper way to attach this ?
they will be in between floor joists.
thanx.

 

[yuri]

I toe nail them in. Take a nail at a 45 deg angle and go thru the side of the boot into the wood.

 

[Fix'n it]

ok.

nuther question. opening size, should i make it nearly exact or a little larger or what ?

 

[yuri]

I would not necessarily make it larger but you will be using a jigsaw or recip saw and they are not like using a scalpel either. I have a template for both sizes and use it. Would be a huge pain in the azz to try make it bigger later so I would make a template and use a pencil and draw the boot on a piece of scrap wood. Cut the template the EXACT size of the boot. Then use a sharpie marker with the template and the thickness of the sharpie should give you enough room to slide it in.

 

[beenthere]

Just slightly large then the boot size.

 

[Fix'n it]

ok, i have one in. i made the hole just slightly larger. ugly hole. i carefully made lines on the floor, but with all of the sawdust, i could not see well enough and went off some.
oh-well, is what it is.

 

[SeniorSitizen]

To make holes not so ugly use Bosch saber saw blades in conjunction with masking tape to prevent tear out. A vac or small fan takes care of the dust very well. Before you know it you'll look like a pro and someone will want to hire you.

 

[yuri]

Good point. Masking tape works well.

I cut hordes of them back in the 80"s when we were ripping out lots of octopus gravity oil fired furnaces and installing complete ductwork jobs with new furnaces.