Trusted by Charleston’s Drivers and Pros
At TRI-COUNTY LINE-X, we focus on vehicle customization and accessories that extend far beyond just bedliners. Leveraging years of expertise and a deep passion for performance, we empower new vehicle owners and commercial fleets to enhance both functionality and visual appeal with access to premier brands.
No matter if you’re transporting equipment or exploring the great outdoors, we have everything you need—without a doubt.
Customization & Accessories Built to Perform
At TRI-COUNTY LINE-X, we elevate your vehicle experience by offering top-notch customization and high-performance truck accessories, going far beyond just bedliners. No matter if you’re exploring job sites in Charleston or enjoying weekend adventures on the trail, our products are crafted to match your dedication and effort. Discover our exceptional range of durable, stylish, and functional upgrades designed specifically for trucks, Jeeps, SUVs, and commercial vehicles.
Tonneau Covers
Secure your truck bed with the durability of LINE-X hard and soft tonneau covers. Designed with both durability and style in mind, these covers offer exceptional protection, enhanced aerodynamics, and a sophisticated appearance for everyday drivers and commercial users alike.
Suspension Upgrades
Elevate, enhance, and perfect your driving experience. Experience enhanced clearance, superior ride quality, and unmatched performance with our expertly installed suspension kits—perfect for off-roading adventures or transporting heavy loads.
Custom Tires & Wheels
Explore our selection of rugged all-terrain tires and customized wheels, featuring premier aftermarket brands designed to elevate your driving experience on any road with flair.
Undercoating Protection
Protect your vehicle’s undercarriage from corrosion, rust, and harsh elements with our top-tier LINE-X undercoating services.
Fleet & Commercial Upfits
We partner with construction crews, landscaping businesses, plumbing companies, and pest control teams to customize work trucks that enhance productivity, ensure safety, and guarantee durability.
Cargo Solutions
Keep your life in order wherever you are. Discover the ultimate in cargo management with our LINE-X systems, designed for intelligent storage solutions and robust protection for all your tools, gear, and supplies.
Step Bars
Enhance both safety and style with our premium step bars, designed to simplify vehicle access while elevating your vehicle’s look with a rugged and functional design.
Truck Toppers
Are you in search of cargo space or reliable, weatherproof storage? Select from a range of durable truck toppers designed for both commercial and recreational use, ensuring lasting performance.
Light Bars & Lighting Kits
Boost safety and visibility with powerful lighting kits, perfect for work sites, trail driving, and low-light environments.
Bumpers, Winches & Recovery Gear
Prepare yourself for off-road adventures with durable LINE-X bumpers, powerful winches, and essential recovery tools—ideal for contractors, overlanders, and thrill-seekers.
Van Upfit Solutions
Transform your work van with personalized upfit packages crafted for enhanced organization, optimal storage, and increased productivity.
Why Choose TRI-COUNTY LINE-X?
Charleston’s Customization Experts
We’re locally trusted across Charleston, Berkeley, and Dorchester counties for reliable service and precision installs.
High-Quality Products
Discover premium brands in accessories, tires, and suspension, expertly installed by our factory-trained technicians.
Serving Commercial and Residential Clients
Whether you’re a general contractor or a weekend off-roader, we customize solutions to fit your needs.
Your Ultimate Accessory Hub
Everything you need is right here—bed covers, lift kits, tires, wheels, and spray protection, all conveniently available in one location.
Fast Turnaround and Local Support
We’re responsive, friendly, and right around the corner in Charleston.
What Our Clients Are Saying?
Anthony and his team at LineX did a great job i stalling my Tonaeu truck bed cover. The price was reasonable and they had it done in 30 minutes. It's also a bonus to support a locally owned small business
T K
I had the one of the greatest experiences ever getting a tonneau cover put on my truck. The owner Anthony is by far one of the most humble business owners I’ve ever encountered. His work was professional and surprisingly efficient. Which is rare in that business. I highly recommend Tri- County Line X if you need a bed cover.
Andre Williams
Excellent experience through the entire process. My 2024 Ford Ranger looks just amazing after getting the Bed sprayed and Tonneau cover installed by Anthony and his team at Tri-county Line-X! A-plus service
Timothy Braddock
Expert Installation & Lifetime Warranty on Line-X
Branded Accessory
Every Line-X branded accessory we install comes with a Limited Lifetime End-To-End Warranty, ensuring coverage for both the product and reinstallation, regardless of your location or future moves. Our certified technicians guarantee that every installation is executed with meticulous precision and utmost care.
Frequently Asked Questions (FAQ’s)
Q: Do you install accessories on vehicles that already have a LINE-X bedliner?
Definitely! We focus on enhancing your vehicle with premium add-ons such as suspension kits, tires, and bed covers, regardless of whether your liner is already in place.
Q: How long does a lift or leveling kit install take?
Most lift kits can be installed within a day. We’ll confirm timelines during your quote.
Q: Do you work with businesses on fleet customization?
Absolutely! Our services include expert commercial upfitting tailored for contractors, landscaping teams, pest control professionals, and beyond.
Q: What brands do you carry?
We stock trusted names like Rough Country, BAK Industries, Fuel Off-Road, Nitto, and more.
Q: Do I need an appointment?
While walk-ins are always welcome, securing an appointment guarantees you the quickest service possible. Contact us or schedule your appointment online now!
Let’s Connect
Shield your ride with the Industry Leader.
Contact Us
7410 Cross County Rd. Charleston, SC 29418
Business Hours:
Monday – Friday 8:00 am – 5:00pm
Saturday Closed
Sunday Closed
