The trimmer is not going to make a special trip back to install the base after carpet is installed.
Installing baseboard trim over carpet.
Lay them flat on the floor every few feet and then cut the base to fit rest it on the spacers and nail it into place.
This technique also leaves more of that handsome baseboard showing above the carpet.
Steps on how to install baseboard 1.
To determine the amount of baseboard material you need measure each straight section of the wall and round up to the nearest whole foot dimension divisible by two.
If the molding is slightly long trim it at angled 1 16 inch increments from the end to fit the wall.
All you need to so now is go along that wall and fasten the remainder of the trim as you normally would.
Do not push down on the baseboard so that it presses into the carpeting.
Carpet installers prefer to cut the carpet a little long and tuck the excess into the gap for a neater job.
Scarf and butt joints.
The carpet installer can run the tack strip up to the trim then roll excess carpet under the trim.
Baseboard first set on 3 8 wood lath strips tack less set between 3 8 1 2 inch away padding brought up to tack less and carpet installed and stretched over tack less and tucked under base.
A week before installation bring the wood inside to acclimate.
Fit the molding to the wall flush against the carpet.
For most installers this is not a problem and can be done easily.
Safety tips for installing baseboard.
If you are not intending to install quarter round or base shoe the baseboard should.
Once the trim is fastened remove the short baseboard pieces and move these along as you install the baseboard.
These can be reused over and over again so hold onto them.
Baseboard installed on top of carpet should be installed at approximately the same height with this exception.
Nail the baseboard in place with the sticks resting only lightly on the surface of the carpet.
Try adding painters tape.
Drill 1 16 inch holes every 16 inches through the baseboard angled downward toward the wall plate.
However consult with your installer to be sure they have no concerns.
This is the basic method for baseboard installation for carpet applications.
Tools and supplies to install baseboards.
Then touch up base if need be.
They will need to be careful not to damage the baseboard when installing the tack strips.
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.
Start running baseboard against inside corners and work toward outside corners.