The trim aisle at any big-box store can stop a first-time DIYer in their tracks — twelve different baseboard profiles, finger-jointed pine versus solid pine versus MDF versus PVC, and prices that range from $0.85 to $7.50 per linear foot for products that all look similar from across the aisle. This guide breaks down what home depot molding actually stocks, when each type is the right choice, and how to install it without expensive mistakes. Most homeowners overspend on trim because they don’t understand what they’re paying for.
The Five Main Categories
Home Depot, Lowe’s, and Menards all stock the same five primary trim types. Knowing what each does saves you from buying the wrong profile.
- Baseboard — runs along the floor where wall meets floor. Hides the gap and protects walls from kicks and vacuum cleaners.
- Crown molding — runs along the top where wall meets ceiling. Adds visual height and architectural detail.
- Casing — surrounds doors and windows. Hides the gap between rough opening and door/window frame.
- Chair rail — horizontal trim 32-36 inches off the floor. Originally protected walls from chair backs.
- Quarter round / shoe molding — small profile that hides the gap between baseboard and floor, especially after refinishing.
Baseboard Profiles and Pricing
Home Depot stocks three main heights and several profiles in each.
- 3-1/4 inch ranch base — basic, modern. MDF $0.95/ft, pine $1.50/ft
- 3-1/2 inch colonial base — traditional curve. MDF $1.10/ft, pine $1.80/ft
- 5-1/4 inch tall colonial — substantial, formal. MDF $1.65/ft, pine $2.95/ft
- 7-1/4 inch craftsman flat — modern farmhouse. MDF $2.40/ft, pine $4.50/ft
For a 12×14 room, you’ll need about 50 linear feet of baseboard. Material cost ranges $50-$220 depending on choice.
Crown Molding Options
Crown is sized by its width when laid flat. Common Home Depot stock:
- 2-1/4 inch crown — small, simple. Best for 8-foot ceilings. $1.10-$2.40/ft
- 3-5/8 inch crown — standard residential. Works with 8 or 9-foot ceilings. $1.65-$3.50/ft
- 4-5/8 inch crown — formal, dramatic. Best with 9+ foot ceilings. $2.85-$5.50/ft
- 5-3/4 inch + crown — statement crown for tall rooms. Often built up from multiple pieces.
Crown is the hardest trim to install due to compound miter cuts. Expect to waste 10-15% on first-time installs while you dial in angles.
Casing for Doors and Windows
Standard casing widths run 2-1/4 to 3-1/2 inches. Profiles include:
- Ranch (clamshell) — flat, tapered. Most modern homes. $0.85-$1.40/ft
- Colonial — stepped or curved. Traditional. $1.10-$1.80/ft
- Craftsman flat — square-edged, rectangular. Modern farmhouse. $1.40-$2.50/ft
- Backband — added to flat casing for built-up traditional look. $0.65-$1.00/ft
For a typical interior door, you need 17 linear feet of casing (two sides plus header on each face). Window casing varies by size — measure first.
Chair Rail and Quarter Round
Chair rail at $1.10-$2.50/ft is more decorative than functional in modern homes. Used most often as the boundary between wallpaper and paint, or in formal dining rooms.
Quarter round runs $0.55-$1.20/ft. After refinishing hardwood floors, the gap between baseboard and floor often shows. Quarter round closes that gap. It’s also useful where flooring meets cabinet kick plates.
Shoe molding is a slightly more refined version of quarter round, taller than wide. Use shoe molding instead when you want a less informal look.
MDF vs Pine vs PVC
The substrate matters more than the profile.
- MDF — smoothest paint surface, cheapest, soft and dents easily. Cannot be stained. Swells if it gets wet. Best for painted interior trim away from moisture.
- Finger-jointed pine — short pieces glued end-to-end. Affordable, paint-grade. Cannot be stained.
- Solid pine (clear or stain-grade) — premium price. Stainable. Best for natural wood looks.
- Poplar — paint-grade hardwood. Harder than pine, takes paint beautifully. Slightly more expensive.
- PVC trim — waterproof, paintable. Best for bathrooms, exterior, and laundry rooms. More expensive but lasts indefinitely.
- Solid hardwood (oak, maple) — for stained applications matching hardwood floors. Most expensive option.
Tools Needed for Installation
- Compound miter saw ($150-$400) — non-negotiable for trim work
- Pneumatic finish nailer with 1-1/2 to 2-inch brads ($120 with compressor or cordless DeWalt at $250)
- Tape measure, pencil, square
- Coping saw — for crown molding inside corners
- Caulk gun and paintable caulk
- Wood filler and spackle
- 120/180 grit sandpaper
Installation Walk-Through
Baseboard
- Find studs with a stud finder, mark with pencil.
- Measure first wall, cut baseboard with a 45-degree miter on outside corners and either coped or 45-degree miters on inside corners.
- Test fit. Trim as needed.
- Nail to studs with 2-inch brads, two nails per stud (top and bottom).
- Continue around room, butting tight at joints.
- Caulk the top edge where it meets the wall. Fill nail holes with painter’s caulk or spackle.
Quarter Round
Same process, smaller scale. Use 1-1/4 inch brads. Don’t nail to the floor — only to the baseboard. The floor needs to expand and contract independently.
Crown Molding
Use a crown molding stop on your miter saw and cut crown upside-down (ceiling becomes the saw fence). Cope inside corners — it hides the inevitable wall imperfections that make 45-degree inside miters gap.
Cost for an Average Room
For a 12×14 room with one door and one window:
- 52 ft baseboard: $50-$140
- 52 ft crown molding: $55-$180
- 17 ft door casing: $15-$45
- 22 ft window casing: $20-$55
- 52 ft quarter round: $30-$60
- Caulk, filler, paint: $40
Total: $210-$520 in materials for a fully trimmed room. Hiring a finish carpenter adds $1.50-$4 per linear foot of installation labor.
Common Mistakes
Buying MDF for bathrooms or laundry rooms guarantees swelling within a year. Always use PVC or solid wood in moisture-prone areas.
Painting trim before installation looks easier but creates touch-up nightmares. Install raw, fill holes, caulk seams, then paint. The result is far cleaner.
Mismatched profiles between baseboard and casing creates visual disharmony. Pick a style (ranch, colonial, craftsman) and stick with it through the whole house.
Coping versus mitering inside corners — many DIYers fight inside-corner gaps for hours. Coping (cutting one piece to match the profile of the other) eliminates the problem.
FAQ
What is the cheapest molding at Home Depot?
3-1/4 inch MDF ranch baseboard at around $0.95 per linear foot is the lowest-cost real molding. Plain 1×4 pine boards at about $1.20 per linear foot are even simpler but lack a profile.
Can I install Home Depot molding myself?
Yes, with a miter saw and a brad nailer. Baseboard and quarter round are beginner-friendly. Crown molding has a learning curve — practice on scrap pieces before installing.
Is MDF or pine better for baseboards?
For paint-grade trim in dry rooms, MDF gives a smoother finished surface for less money. For moisture-prone areas (bathrooms, basements) or stained finishes, pine or PVC is better.
How much molding do I need for a room?
Measure the perimeter and add 10-15% for waste and miscuts. A 12×14 room is 52 linear feet around, so order 60 feet to be safe. Double the figure if you’re installing both baseboard and crown.
