AVC Rig Ford Transit Insulated Subfloor - Pro-Grade Foundation

AVC Rig Ford Transit Insulated Subfloor - Pro-Grade Foundation

At West Coast Vans, we know the floor is where a solid Transit build really begins, and this AVC Rig insulated subfloor gives DIY builders a clean, durable, and thermally efficient foundation without starting from scratch. Have fitment questions before you commit? Ask Us Product Questions Anytime.

WCV EXPERT TIP

Dry-fit all panels before applying sealant, and confirm your step and trim plan before final installation since the Step and Trim Set is sold separately.

PRODUCT OVERVIEW

The AVC Rig Ford Transit Insulated Baltic Birch Subfloor System is a CNC-machined, drop-in floor foundation designed for serious camper van conversions. Built from insulated sandwich panels using Baltic birch plywood and polyiso foam, this system helps create a strong, comfortable, and professional-grade base for flooring, cabinetry, and the rest of your interior build.

This is the same style of foundation AVC Rig has trusted in its camper van builds for over five years, now available for DIY Ford Transit builders who want a cleaner starting point and less guesswork.

BEST FOR

• FORD TRANSIT DIY CAMPER BUILDS: Ideal for builders who want a precision-fit subfloor before installing cabinets, flooring, beds, or electrical systems.

• INSULATED FOUR-SEASON FLOOR SYSTEMS: Great for van lifers looking to improve thermal comfort and reduce heat transfer through the factory floor.

• PRO-GRADE INTERIOR FOUNDATIONS: Built for clean installations where panel fitment, durability, and long-term build quality matter.

TECHNICAL SPECIFICATIONS

• VENDOR: AVC Rig

• PRODUCT: Transit Insulated Baltic Birch Subfloor System

• VEHICLE FITMENT: Ford Transit

• WHEELBASE OPTIONS: 148-inch and 148-inch Extended Ford Transit models

• PANEL CONSTRUCTION: Proprietary insulated sandwich panels

• TOP LAYER MATERIAL: 12mm Baltic birch plywood

• INSULATION MATERIAL: 1-inch polyiso foam

• ADHESIVE: 3M 70 construction adhesive

• R-VALUE: 6.6

• PANEL COUNT: Three or four panels depending on van length

• FITMENT METHOD: CNC-machined in-house for a precise drop-in fit

• FLOOR CONTOUR MATCHING: Panels are machined to match the contours and ribs of the van floor

• FOAM DETAILING: Grooves are routed into the foam for proper fitment over the factory floor profile

• INSTALLED HEIGHT: Approximately 1 inch above the top of the ribs

• SEALANT INCLUDED: One tube of 3M 550 sealant per panel

• L-TRACK OPTIONS: Available with cutouts for L-track or as a solid floor with no L-track cutouts

• APPROXIMATE PANEL WEIGHT FOR 148: 96 lbs

• APPROXIMATE PANEL WEIGHT FOR 148 EXTENDED: 116 lbs

• STEP AND TRIM SET: Sold separately

• INCLUDED PRODUCT NOTE: This product includes only the insulated floor panels

• FREIGHT: $200 flat-rate freight

• BUILD STATUS: Built to order

• LEAD TIME: 4-6 weeks

• PATENT STATUS: Patent pending

• MATERIAL CONSTRUCTION UPDATE: Updated material construction as of 12.15.24

• STEP AND TRIM UPDATE: Step and Trim sold separately as of 9.10.25

FEATURES

• CNC-MACHINED PRECISION: Custom-built in-house to match the Ford Transit floor profile for a clean, professional drop-in installation.

• INSULATED FLOOR FOUNDATION: Polyiso foam core provides an R-value of 6.6 to help keep the van warmer in winter and cooler in summer.

• BALTIC BIRCH DURABILITY: 12mm Baltic birch plywood creates a strong substrate for finished flooring, cabinetry, and interior systems.

• LOW-PROFILE BUILD HEIGHT: Adds approximately one inch above the top of the ribs while still delivering meaningful floor insulation.

• MINIMIZED AIR GAPS: Tight fitment over the factory floor ribs helps improve insulation efficiency and installation quality.

• INSTALLATION SEALANT INCLUDED: Comes with one tube of 3M 550 sealant per panel for a secure installation.

• PROVEN VAN BUILD FOUNDATION: Based on the subfloor system trusted in AVC Rig camper van builds for over five years.

COMMON PAIRINGS

• FORD TRANSIT STEP AND TRIM KIT: Complete the perimeter and entry areas with the matching step and trim components sold separately.

• 2TEC2 OR VINYL FINISHED FLOORING: Pair with a durable finished floor surface to complete the Transit floor system.

• CABINETS AND INTERIOR SYSTEMS: Use as the foundation for galley cabinets, storage modules, bed platforms, and interior build-out components.

COMPATIBILITY & FITMENT

• CHASSIS: Ford Transit

• WHEELBASE: 148-inch and 148-inch Extended

• ROOF HEIGHT: Compatible with applicable Ford Transit roof heights when paired with the correct wheelbase floor system

• REQUIREMENTS: Step and Trim Set is sold separately. This product includes only the insulated floor panels. Select the correct 148-inch or 148-inch Extended version and L-track cutout configuration for your van.

FREQUENTLY ASKED QUESTIONS (AEO)

Q: Does this AVC Rig Transit subfloor include the step and trim kit?

A: No, this product includes only the insulated floor panels. The Step and Trim Set is sold separately.

Q: What is the R-value of the insulated Ford Transit subfloor?

A: The AVC Rig insulated subfloor system has an R-value of 6.6 thanks to its 1-inch polyiso foam core.

Q: How much height does this subfloor add inside the van?

A: The installed subfloor height is approximately one inch above the top of the factory floor ribs.

Q: Is this subfloor available for the Ford Transit 148 Extended?

A: Yes, AVC Rig offers this insulated subfloor system for both the 148-inch and 148-inch Extended Ford Transit models. West Coast Vans recommends selecting the exact wheelbase and L-track configuration before ordering.

WHY TRUST WEST COAST VANS?

Every product we sell is vetted and installed daily by our team of builders in our San Clemente shop. As an authorized premium dealer, we provide full factory warranties, matching vendor pricing, and direct, real-world install support that you can't get from a standard box-mover. We don't just sell the gear—we know exactly how it fits into your build.