There are two reasons for this gap which is generally required by building codes.
Gap between floor and wall trim.
If you ve got a laminate floor and surrounding baseboard and there s a small gap where the trim meets the floor it means either the floor wasn t even and straight or the trim contracted after it was installed.
Caulking before painting between the board and the laminate is an ideal solution for gaps between boards.
Caulking the laminate flooring baseboards gaps in trim joints and the gap between baseboard and wall improve water impermeability of the house.
Gap between floor and baseboard for carpet.
This trim comes in wood which can reasonably match the looks of a wood floor when stained.
Casing is designed to cover the unfinished gap between walls and door or window frames.
This trim is flexible enough to conform to gaps even those intermittent sags between joists.
Filling in this gap or gully not only keeps dirt and dust from collecting around the edges of the room but it also helps your new floor covering look its best.
Either way it s an easy fix.
Though different variations of door casing styles are readily found the width of casing usually spans two.
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Both will create bulges that cause gaps around floor trim.
When you lay wall molding such as baseboard trim against a wall and see gaps between the top of the wall trim and the drywall it s usually because of a misaligned stud or a built up ridge of taping compound over a joint.
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When this carpet is removed and replaced with hardwood vinyl or other floor coverings you might spot a gap between the bottom of your baseboards and your new floor.