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Finishesaka: base moldingaka: skirting board

Baseboard

In Plain English

The trim piece that covers the gap between the wall and the floor.

Definition

Baseboard is a trim board installed along the bottom of interior walls where they meet the floor. It conceals the joint between the wall finish and floor finish and protects the wall from scuffs and impacts. Baseboards are available in wood, MDF, PVC, and composite materials in a wide range of profiles and heights.

Why It Matters in Bidding

Baseboard is a high-quantity linear takeoff that is easy to underestimate because it follows every wall, closet, and jog in the floor plan, not just the perimeter. Material choice and profile drive both unit price and install labor, since a tall painted hardwood profile with mitered returns costs far more per foot than primed MDF. On finish-heavy bids, small errors in linear-foot quantity or waste factor multiply across an entire floor and erode the finish carpentry margin.

Example

Doing finish takeoff for an apartment renovation, the estimator measures baseboard along every room and closet wall, adds a waste factor for inside and outside corners, and prices paint-grade MDF rather than the stained oak the owner had verbally requested but never specified.

Related Terms

Quarter RoundTrimCrown MoldingMillwork

Related Tools & Templates

Interior Finish Schedule

Frequently Asked Questions

Measure the linear footage along the base of every wall including closets and alcoves, then add a waste factor for cuts, corners, and defective stock. Standard stock lengths affect waste, so tight rooms with many corners need a higher allowance. Note the profile and material since both change the unit price.
Material, profile height, and finish drive cost. Primed MDF is the cheapest and fastest to install, while solid wood, especially stained or stain-grade, costs more in both material and careful labor. Tall or detailed profiles, mitered outside corners, and pre-finished requirements all add labor that should be captured in the unit price.
On most projects the finish carpentry sub or trim contractor both supplies and installs baseboard, and that scope sits in the finishes division. Confirm who handles painting or staining, because field-finished baseboard adds a separate painter line item while pre-finished material shifts that cost into the trim package.

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