If you are not intending to install quarter round or base shoe the baseboard should.
Install baseboard existing carpet.
Quarter round will stick out farther than necessary where the baseboard ends and door casing begins which is where the baseshoe should terminate either with a chamfered end or a returned mitered end.
These can be reused over and over again so hold onto them.
Scarf and butt joints.
Drill 1 16 inch holes every 16 inches through the baseboard angled downward toward the wall plate.
If the molding is slightly long trim it at angled 1 16 inch increments from the end to fit the wall.
Nail the baseboard in place with the sticks resting only lightly on the surface of the carpet.
The idea is that you should.
Tools and supplies to install baseboards.
Fit the molding to the wall flush against the carpet.
Once the trim is fastened remove the short baseboard pieces and move these along as you install the baseboard.
Safety tips for installing baseboard.
All you need to so now is go along that wall and fasten the remainder of the trim as you normally would.
Coping an inside corner joint.
When installing baseboards before carpet ask the installer how large of a gap to leave between the floor and the trim e g.
Installing a baseboard trim around carpet areas adds a fancy edge to the room helping to make the carpet part of the room.
This is generally about an inch for the nail tack and you will use a carpet tucker to tuck the excess carpet into the baseboard.
This is the basic method for baseboard installation for carpet applications.
When installing carpet after the baseboards are in place there will usually be some instructions that tell you how far you need for both the carpet pad and the carpet itself.
Do not push down on the baseboard so that it presses into the carpeting.
Preparing to install baseboards.
I would suggest installing the baseboard and then adding 1 2 x 3 4 base shoe not quarter round.
Hammer tack nails through these holes into the wall plate.
The carpet installer can run the tack strip up to the trim then roll excess carpet under the trim.