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Woodworking & Lumber

Trim & Baseboard Guide: Types, Cost & Installation

Lumberama Editorial Team, Trim & Finish Carpentry Specialists Nov 28, 2026 7 min read
White baseboard and trim molding installed in a modern room

Trim Types

Baseboard: Runs along the bottom of walls where they meet the floor. Standard heights: 3-3.5 inches (builder grade), 5.25 inches (most popular upgrade), 7.25 inches (dramatic/formal). Materials: MDF ($0.50-$2/ft), pine ($1-$4/ft), poplar ($1.50-$4/ft), oak ($3-$8/ft).
Door casing: Frames around doorways. Most common styles: colonial (curved profile), craftsman (flat, simple), ranch (rounded). Width: 2.25-3.5 inches. Cost: $1-$6 per linear foot.
Window casing: Frames around windows. Typically matches door casing style. Some homes add a window stool (sill) and apron below. Cost: $1-$6 per linear foot.
Shoe molding / quarter round: Small trim that covers the gap between baseboard and floor. Quarter round: 3/4 inch, quarter-circle profile. Shoe molding: thinner and taller, more elegant. Cost: $0.25-$1 per linear foot.
Chair rail: Horizontal trim at chair height (30-36 inches). Protects walls from furniture. Cost: $1-$5 per linear foot.

Cost

Baseboard per linear foot: MDF: $0.50-$2 (material). Pine: $1-$4. Hardwood: $3-$8. Installed (professional): $4-$10 per linear foot.
Per room (12x12, ~44 linear feet): DIY (MDF): $30-$100 (materials). DIY (wood): $50-$200. Professional: $200-$500.
Whole house baseboard: Average home (~500 linear feet): DIY: $250-$1,000. Professional: $2,000-$5,000.
Door casing per door: Materials: $20-$60. Professional installed: $75-$200.
Window casing per window: Materials: $20-$50. Professional installed: $75-$200.
Complete trim package (whole house): Builder grade: $2,000-$5,000. Upgraded: $5,000-$10,000. Premium: $10,000-$20,000+.

Installation

Tools needed: Miter saw (essential). Nail gun (brad nailer or finish nailer). Measuring tape and pencil. Caulk and caulk gun. Wood filler. Level.
Baseboard installation: 1. Measure each wall. 2. Cut pieces (outside corners: mitered at 45°. Inside corners: one piece square, one coped or mitered). 3. Nail to wall studs (every 16 inches). 4. Fill nail holes with wood filler. 5. Caulk top edge and corners. 6. Prime and paint.
Tips: Cope inside corners for the best fit (or miter and caulk for ease). Back-cut miters slightly for tight joints. Leave 1/8 inch gap at floor if installing before flooring. Use a stud finder. Caulk the top edge for a seamless look.
DIY difficulty: Baseboard: intermediate (the miter cuts take practice). Door/window casing: intermediate. Shoe molding: beginner.

Frequently Asked Questions

Lumberama Editorial Team

Trim & Finish Carpentry Specialists

Expert contributor at Lumberama, covering lumber selection, construction techniques, and building material insights.

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