Powderly, Texas • 903-951-3768
3D Design & Prototyping
Trailer Fabrication
Mobile Welding Repair
Custom Metal Projects
Professional SolidWorks design, production drafting, fabrication and trailer manufacturing — with 20+ years of engineering experience behind every project.
Full Drawing Packet Available
Production drawings, DXF files & full model assembly — ready to build.
Let's Build Your Vision Together.
What We Do
Design & Fabrication Services
From concept to cut-ready files — SolidWorks modeling, full production drafting, trailer engineering, and prototype development. Built around what your shop needs to get it done right.
Full SolidWorks Design & Modeling
Complete 3D part and assembly modeling from scratch. Parametric, clean, and built to your exact specifications — ready for drawings, DXF, or prototype development.
Production Drawings & Drafting
Detailed 2D drawings with GD&T callouts, weld symbols, full BOM, and every dimension your shop needs. No guesswork. No back-and-forth.
Trailer Design & Engineering Support
Twelve years of dedicated trailer engineering — tongue geometry, axle placement, load distribution, and build-ready documentation for manufacturers and custom builders.
Prototype Development
From first sketch to first build. Design iteration, fabrication support, and everything in between — one point of contact the whole way through.
DXF & PDF File Packages
Laser-cut ready DXF files and production PDFs delivered in the exact format your vendor or shop requires.
Trailer Fabrication
7 Line isn't just a design shop — we're actively fabricating and building prototype trailers set to change the market. Our MultiTilt and MultiDeckover Dump are multi-purpose builds engineered and welded in-house, designed for homeowners, outdoor enthusiasts, and everyday families — from motorcycles and kayaks to lawn equipment and camping gear. One trailer built right for every adventure.
Mobile Service Available — We come to your shop, job site, or facility. No need to ship files or materials back and forth.
About
7 Line Design & Fabrication
Michael & Christy Keim founded 7 Line Design and Fabrication in Powderly, Texas — bringing over two decades of professional design and drafting experience to manufacturers, fabricators, trailer builders, and entrepreneurs who need things done right the first time.
With 12 years of dedicated trailer engineering experience, Michael understands every stage of the process — from first concept through build-ready documentation.
7 Line offers fully mobile design and fabrication services — we come to your shop or facility, eliminating friction and getting projects moving faster.
and drafting experience
trailer engineering
In Development
Prototypes
One Trailer.
Multiple Configurations.
Model 01 — MultiTilt
MultiTilt
A versatile single-axle utility trailer with a 10° tilt deck — engineered to haul motorcycles, ATVs, lawn equipment, kayaks, camping gear, and home project loads. One trailer for every chapter of life.
Model 02 — MultiDeckover Dump
MultiDeckover Dump
Deckover versatility meets dump functionality. Built for homeowners, farmers, and everyday haulers who need a platform that handles dirt, gravel, mulch, rock, and debris — engineered and fabricated in-house by 7 Line.
Contact
Start Your Project
Call or send a message — we respond fast and we won't waste your time.
Contact
Michael Keim
Phone
Location
Powderly, Texas 75473
Service
Mobile — We Come to You
