Our Products
Interior Window Trim
Custom Window Surrounds
At PrefabTrim, our products are crafted to bring professional-look custom millwork into your home without the cost, delay, or hassle of on-site cutting and fitting. Whether you’re refreshing one room or upgrading an entire house, our trim packages are built to precise measurements and designed for fast, confidence-boosting installation. Every option gives you quality, durability, and design flexibility that’s hard to match with store-bought stock lumber.
We offer the most popular trim options.
3 1/2″ Flat Stock
2 1/2″ Colonial Casing
3 1/4″ Colonial Casing.
Other products/options available upon request.
All trim comes in either Natural stock or Pre-primed for all styles. Custom painting or staining available for additional cost.
Other Custom Products
Custom Woodworking Projects
Custom Cabinetry, Kitchen Islands and More
For projects that go beyond standard trim profiles, our Custom Woodworking option gives you the freedom to create pieces that fit your space, style, and measurements exactly. From one-of-a-kind window and door casings to specialty millwork and built-ins, each custom piece is crafted with care, precision, and attention to detail. We work closely with you to understand your goals, recommend materials and profiles, and deliver woodworking that feels intentional and cohesive within your home. The result is high-quality craftsmanship that is truly custom — without the uncertainty or delays of on-site fabrication and carpentry.
Other Custom Products
Cat & Plant Shelves
Custom made wooden shelves for your windows.
Thoughtfully designed to blend function, craftsmanship, and style — creating elevated spaces your pets and plants will love without compromising your home’s aesthetic. Each shelf is handcrafted from quality wood and built to order, ensuring strength, stability, and a clean, intentional look once installed. Whether you’re creating a vertical playground for your cat, a sun-filled display for plants, or a combination of both, these shelves are made to integrate seamlessly into your space. With customizable sizing and finish options, they offer a practical yet beautiful solution that feels like a natural extension of your home, not an afterthought.
Custom made wood cat shelf that installs right in your window. Custom made to your specific window dimensions.
How it works
Quick & Easy DIY Window Surrounds
Every PrefabTrim product arrives with clear instructions and hardware, and most window surrounds can be assembled with just ten screws and installed in minutes. We even pre-drill nail holes and include nails upon request for a truly streamlined experience.
Whether you’re updating old trim or finishing new construction, our system empowers you to work confidently and efficiently.
Buy 9 window surrounds and get the 10th FREE.
Whether you’re a seasoned DIYer or a professional contractor, our ready-to-install trims help save hours of work and deliver a polished, custom look every time.
Made in the USA — Support Local Businesses
Choose PrefabTrim for Wholesale Window Orders That Support Small Business
Streamline your renovation projects and cut labor costs with PrefabTrim’s Wholesale Window Trim Packages for Contractors. When you bulk order you window trim, you save more while helping a New Hampshire small business grow—bringing quality, consistency, and real local impact to every build and property upgrade.