Millwork & Trim Glossary for Professional Builders and Remodelers

Millwork and trim are vital components in construction and interior design, providing both structural and aesthetic value to homes and buildings. From baseboards to crown moulding, understanding the terminology can ensure precision in every project. In this guide, we’ll explore key terms related to millwork and trim to help contractors, builders, and remodelers enhance their craftsmanship.

Table of Contents:

1. What is Millwork?
2. Essential Millwork and Trim Terms
3. Millwork Materials
4. Millwork and Trim FAQs

What is Millwork?

Millwork refers to any woodwork or building material traditionally produced in a mill. This includes mouldings, doors, window casings, and stair parts. Millwork is essential for both functional and decorative purposes in construction.

Essential Millwork and Trim Terms

Moulding

Moulding (or molding) is a decorative strip of material used to cover transitions between surfaces or for ornamental purposes. It comes in various styles, such as:

• Crown Moulding: Installed where walls meet ceilings, adding elegance and depth.
• Baseboards: Positioned at the bottom of walls, providing a finished look.
• Casing: Trim around doors and windows to cover gaps between the frame and wall.

Interior Doors

Doors made for interior spaces come in various styles and materials. Popular options include:

• Solid Core Doors: Heavier and better at sound insulation than hollow core doors.
• Stile and Rail Doors: Constructed with vertical and horizontal panels for stability and aesthetics.

Stair Parts

Components essential for building a staircase, such as:

• Newel Posts: Large vertical posts that support handrails.
• Balusters: Vertical rods that support the handrail.
• Treads and Risers: The horizontal and vertical components of a staircase.

Shiplap

Shiplap is a type of wooden board typically used for wall cladding. Its grooves allow it to fit snugly together, making it often used for creating rustic or farmhouse-style interiors.

Millwork Materials

Pine

Pine is a commonly used softwood for millwork due to its versatility and affordability. It's often used for baseboards and crown moulding.

MDF (Medium-Density Fiberboard)

MDF is a composite material used for moulding due to its smooth finish and ease of painting. It's more affordable than solid wood but not as durable.

Finger-Joint Pine

This material is created by joining shorter pieces of pine to form longer sections. Due to its cost-effectiveness, it’s often used in moulding.

Millwork and Trim FAQs

What is the difference between solid and hollow core doors?

Solid-core doors are denser and provide better insulation, while hollow-core doors are lighter, more affordable, and less durable.

What type of material is best for moulding in high-traffic areas?

Hardwoods like oak or engineered wood products like MDF are durable choices for moulding in high-traffic areas.

How do I choose between wood and composite millwork?

Wood offers a classic, natural look but requires more maintenance. Composite materials like MDF are low-maintenance and more affordable.

Elevate Your Project with High-Quality Millwork

At LS Building Products, we offer a full selection of millwork and trim products tailored to contractors' needs. Whether you’re working on a new build or renovation, our expert team can help you select the perfect materials. Contact us today to discuss your project requirements for standard and custom millwork!