9 Essential Supplies for Building Custom Storage Bins Under Camper Benches

Staring at the empty, cavernous space beneath a camper bench seat can feel like looking at a wasted organizational goldmine. Standard plastic tubs rarely fit these odd dimensions, leaving valuable real estate unused in a tiny home or van build. Building custom slide-out storage bins is the ultimate way to reclaim this space, provided the right materials and tools are used to withstand the constant vibration of life on the road.

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Designing Under-Bench Storage for Maximum Space

Under-bench storage in a mobile build must balance accessibility with structural integrity. Dinette benches or couch frames double as structural supports, meaning any cutout or drawer cavity cannot compromise the safety of the seat above. Designing deep, pull-out drawers rather than top-access hatches ensures that gear is reachable without forcing passengers to get up and lift heavy cushions every time a tool is needed.

To maximize every square inch, measure the clear opening width, height, and depth, keeping wheel wells and electrical conduits in mind. Bins should be built slightly shallower than the actual bench depth to allow room for drawer slides and latching mechanisms at the front. A good rule of thumb is to allow at least a half-inch of clearance on all sides to prevent the drawer box from binding against the outer bench frame during temperature changes.

Cabinet Plywood – Columbia Forest PureBond Birch

Plywood forms the structural shell of the storage bins, requiring a balance of strength, weight, and stability. Heavy materials degrade fuel economy, while flimsy boards warp under the moisture fluctuations common in camper vans.

Columbia Forest PureBond Birch Plywood (specifically in 1/2-inch thickness for drawer sides and 1/4-inch for bottoms) offers exceptional dimensional stability without the weight of solid hardwood. It is manufactured using a soy-based, formaldehyde-free adhesive, which prevents harmful off-gassing in tight, unventilated mobile spaces. The maple or birch veneer face provides a smooth finish that looks professional and accepts protective sealers beautifully.

• Thickness options: Use 1/2-inch for structural box frames and 1/4-inch for slotted drawer bottoms to save weight.
• Sheet sizes: Available in manageable 4′ x 8′ sheets or pre-cut 2′ x 4′ project panels for easier transport in small vehicles.
• Moisture resistance: While highly stable, unfinished edges must be sealed to prevent delamination in humid coastal climates.

This plywood is ideal for DIYers who want a balance of high-end appearance and structural safety without toxic fumes. It is not suitable for budget builds where cheap construction-grade CDX sheathing is preferred despite its rough texture and heavy warping tendencies.

Pocket Hole Jig – Kreg Pocket Hole Jig 320

Drawer boxes must endure constant vibration and heavy loads without pulling apart at the seams. Pocket hole joinery allows for strong, hidden face-frame joints that pull wood pieces tightly together without complex wood joints like dovetails.

The Kreg Pocket Hole Jig 320 is a highly portable, modular tool designed specifically for working in tight spaces. Its two-drill-guide system can be spaced out or used individually, making it incredibly versatile for small-scale cabinetry projects. The hardened-steel drill guides ensure clean, precise pocket holes, preventing the wood from splitting when fastening thin 1/2-inch plywood.

• Material compatibility: Easily adjusts for wood thicknesses from 1/2-inch to 1-1/2-inch.
• Required accessories: Requires a face clamp to secure the jig and a square-drive bit to drive the specialized pocket screws.
• Screw selection: Always use coarse-thread pocket screws for plywood to prevent stripping the wood fibers.

This tool is perfect for builders who want professional-grade joinery without investing in a massive workshop station. It is not necessary for those using simple butt joints and brad nails, though those weaker joints are far more likely to fail on bumpy dirt roads.

Wood Glue – Titebond II Premium Wood Glue

Mechanical fasteners like screws and nails hold pieces in place, but wood glue creates the actual chemical bond that prevents joint failure over time. Road vibration acts as a constant stress test on cabinetry, and glue acts as the first line of defense.

Titebond II Premium Wood Glue is the industry standard for mobile cabinetry because of its cross-linking polyvinyl acetate formula. It offers an incredibly strong initial tack and dries harder than the wood itself, ensuring joints stay fused. It is also highly water-resistant, making it perfect for camper benches that might experience spills, wet gear storage, or condensation.

• Working time: Provides a 10-to-15-minute open assembly time, allowing for precise alignment before clamping.
• Cure time: Requires clamping for at least 30 minutes, with a full structural cure taking 24 hours.
• Clean-up: Excess wet glue can be easily wiped away with a damp cloth, which is crucial for preventing finish blotches.

This is a must-have for any builder assembling wooden storage boxes. It is not suitable for structural metal-to-wood bonding, which requires specialized polyurethane construction adhesives instead.

Drawer Slides – Vadania Heavy Duty Slides VA2053

Deep under-bench drawers need to glide smoothly even when packed with heavy tools, recovery gear, or canned food. Traditional lightweight drawer slides will bend, bind, or fail entirely under the dynamic loads of a moving vehicle.

The Vadania Heavy Duty Slides VA2053 are built to handle the rough-and-tumble nature of mobile life. Sporting a load capacity of up to 265 pounds, these full-extension slides feature a ball-bearing design that remains buttery smooth under maximum load. Crucially, they include a locking mechanism that keeps the drawer securely closed during transit, preventing catastrophic spills around sharp highway bends.

• Size options: Available in lengths ranging from 12 inches to 40 inches to match deep bench layouts.
• Side clearance: Requires exactly 0.75 inches of clearance on each side of the drawer box for proper installation.
• Weight: Because they are heavy-duty steel, these slides add significant weight to the build, which must be factored into the overall payload.

These slides are perfect for large, deep drawers carrying heavy cargo or kitchen setups. They are overkill and too heavy for small, shallow bins meant only for clothing or bedding, where standard 100-pound slides would suffice.

Cabinet Latch – Sea-Dog Push Button Rim Latch

Centrifugal forces will easily swing drawers open while driving, scattering your belongings across the camper floor. A positive-locking latch mechanism is non-negotiable to keep under-bench drawers sealed shut until intentionally opened.

The Sea-Dog Push Button Rim Latch is designed specifically for marine environments, meaning it is built to resist corrosion and constant motion. The push-button mechanism sits flush with the drawer face when locked, preventing caught clothes or bruised shins in tight camper aisles. Pressing the button pops it out to act as a convenient drawer pull while simultaneously releasing the heavy-duty internal latch.

• Door thickness: Works best on door and drawer fronts between 5/8-inch and 7/8-inch thick.
• Material: Constructed from durable chrome-plated brass and molded plastic for longevity.
• Installation: Requires precise alignment and a spade bit to drill the clean through-hole for the button mechanism.

This is the gold standard for builders seeking a sleek, rattle-free latching system that doubles as a handle. It is not ideal for those who prefer simple magnetic catches, which are notoriously unreliable on bumpy forest service roads.

Brad Nailer – Ryobi One+ 18V 18-Gauge Nailer

When assembling drawer boxes or attaching face frames, holding pieces perfectly flush while glue dries is a major challenge. A brad nailer acts as an instant clamp, firing thin wire nails to hold pieces in alignment while you work.

The Ryobi One+ 18V 18-Gauge Cordless Brad Nailer is a game-changer for off-grid or driveway builds because it requires no loud, bulky air compressor or tangling hoses. Its AirStrike technology provides the power of a pneumatic tool in a highly portable, battery-powered package. The 18-gauge nails leave tiny holes that are easily filled, making them ideal for delicate trim work and face-frame assembly.

• Nail length compatibility: Drives 18-gauge brad nails ranging from 5/8-inch to 2 inches long.
• Depth adjustment: Features a tool-less depth-of-drive adjustment to prevent shooting nails completely through soft plywood.
• Battery system: Part of the Ryobi 18V system, allowing battery sharing with other common camper build tools.

This tool is essential for solo builders who need an “extra hand” to instantly tack joints together before driving structural screws. It is not meant for heavy framing or structural assembly where thick wood screws are required for safety.

Veneer Edge Banding – Edge Mate Birch Iron-On

Plywood is incredibly strong, but its raw, layered edges are unsightly and prone to splintering. Edge banding covers these raw edges, transforming a basic DIY box into a piece of finished, professional-grade furniture.

Edge Mate Birch Iron-On Edge Banding is made from real wood veneer pre-coated with a high-quality hot-melt adhesive. By using a standard household iron, the glue melts and bonds the wood strip directly to the raw plywood edge in seconds. Once trimmed, it creates a seamless transition that matches the plywood face, protecting the edges from snagging blankets or gear.

• Width options: Most commonly used in 3/4-inch or 13/16-inch widths to allow plenty of room for trimming.
• Trimming: Requires a dedicated edge-banding trimmer or a sharp utility knife to shave off the excess overhang flush with the plywood.
• Finishing: Because it is real wood, it can be sanded, stained, and finished exactly like the surrounding plywood.

This is perfect for builders who want high-end, professional results on exposed drawer edges. It is unnecessary if the drawer boxes will be completely hidden behind solid face doors or inside closed cabinets.

Wood Finish – Minwax Polycrylic Protective Finish

Camper vans experience extreme temperature swings, humidity spikes, and spilled fluids. An unsealed wooden bin will quickly absorb moisture, causing it to swell, warp, and mold in dark under-bench cavities.

Minwax Polycrylic Protective Finish is a water-based acrylic sealer that provides a crystal-clear, ultra-durable protective layer. Unlike oil-based polyurethanes, it does not yellow over time, preserving the natural pale beauty of birch plywood. It also cures with very low odor, which is critical when applying finishes inside a confined vehicle or small workshop space.

• Application: Can be applied with a high-quality synthetic bristle brush, foam roller, or HVLP sprayer.
• Dry time: Dries to the touch in 30 minutes and can be recoated after two hours, allowing for multiple coats in a single day.
• Cleanup: Soap and water clean-up eliminates the need for harsh mineral spirits or chemical thinners.

This finish is ideal for builders looking for a fast-drying, low-odor, durable finish that protects against moisture and abrasion. It is not suitable for exterior applications or benches that will be directly exposed to rain and harsh UV rays.

Flush Pull Handle – Sugatsune HH-C75 Steel Pull

Traditional cabinet knobs stick out into the narrow walking aisles of a camper van or small travel trailer. Flush pull handles sit level with the drawer face, eliminating painful snags and optimizing the limited space between benches.

The Sugatsune HH-C75 Steel Pull is a premium, recessed handle designed for heavy-duty marine and industrial use. Made from corrosion-resistant steel, its rugged construction can handle the force needed to pull open heavily loaded under-bench bins. Its clean, minimalist aesthetic matches modern camper interior designs perfectly without drawing unnecessary attention.

• Recess depth: Requires routing or chiseling a 9mm deep pocket into the drawer face for a completely flush fit.
• Installation: Best mounted with small wood screws from the back to keep the front face entirely clean and fastener-free.
• Grip space: Provides a comfortable, wide recess that allows multiple fingers to pull heavy loads easily.

This handle is perfect for builders prioritizing a sleek, snag-free layout in tight, high-traffic camper layouts. It is not suitable for those who do not have a router or chisel set to create the recessed pocket required for installation.

How to Scribe Custom Bins to Curved Van Walls

Standard square storage bins do not slide neatly against the highly contoured, sloping metal walls of a modern cargo van. To maximize your under-bench storage footprint, you must “scribe” the back of your drawer boxes or cabinet frames to match the vehicle’s specific curvature. This process bridges the gap between straight-line carpentry and the organic curves of a vehicle’s sheet metal.

To do this, position a piece of cardboard template material or the unfinished plywood side panel directly against the wall where the bench will sit. Secure a pencil to a standard washer or a specialized scribing compass, keeping the metal point on the wall and the pencil on your wood. Drag the compass along the contour of the van wall, allowing the pencil to transfer the exact wave of the metal onto your material.

Once marked, use a jigsaw with a fine-toothed wood blade to carefully cut along the scribed line, leaning slightly outward to create a back-bevel. Test-fit the piece against the wall, shaving away tight spots with a hand plane or orbital sander until it rests flush against the chassis. This tailored fit prevents wasted space behind the bench and gives the entire build a factory-finished appearance.

Securing Your Bins to Prevent Road Rattles

The constant vibrations of highway driving will quickly turn minor cabinet play into a symphony of annoying squeaks and rattles. Over time, these subtle movements work screws loose, stripping plywood threads and compromising the safety of the entire storage unit. Properly securing your under-bench bins to both the vehicle chassis and the wooden subfloor is essential for peace of mind on long road trips.

Always anchor your heavy drawer slide brackets directly into structural framing or the subfloor using heavy-duty wood screws and thread-locking compound. Avoid fastening directly to thin, decorative wall paneling, which will pull loose under the weight of a loaded drawer. Adding a thin layer of closed-cell foam or felt tape between touching wooden components acts as a dampener, absorbing vibration before it can create noise.

Finally, double-check that your heavy-duty drawer slides and positive-locking push-button latches are properly aligned and tensioned. Even a fraction of an inch of play in a latch will allow a drawer to bounce against its frame over rough terrain. Spending the extra time to shim, adjust, and damp your connections ensures a quiet cabin and cabinet joinery that will outlast the vehicle itself.

Building custom under-bench storage bins is a weekend project that pays massive organizational dividends for years to come. By selecting durable, rattle-free hardware and taking the time to scribe to your vehicle’s unique curves, you transform wasted cavities into high-functioning utility spaces. Grab your tools, plan your layout, and start reclaiming your floor space for a more comfortable life on the open road.