Material Weight for Van Conversions: Plywood, Shuttering Ply, MDF & Particleboard Compared
Reading time: approx. 7 minutes
When you plan your van, you probably think about furniture size first: how wide the base cabinet will be, how tall the bed. The material behind it — plywood, shuttering ply, MDF or particleboard — you often pick by looks or price. That’s a mistake when it comes to weight: for the same piece of furniture, material choice alone can make a 30–40% weight difference. Across a whole build, that quickly adds up to 20–30 kg you could either save or unnecessarily carry along.
Want to know how much payload you actually have left for this? Our article Sprinter & Ducato: Calculating Payload and Weight the Right Way covers it in detail.
Why density matters more than “which wood”
The weight of a panel comes down to a simple formula:
Weight = Area × Thickness × Density
A 12 mm panel with 1 m² of area and a density of 700 kg/m³ weighs 8.4 kg. The same panel in a material with 450 kg/m³ density weighs only 5.4 kg — same size, same thickness. That’s exactly the calculation VanLogic does automatically for you: you choose shape, build method and material for each piece of furniture, the density is already stored, and the weight updates live. No manual kg guesswork.
Try it directly in your browser — free, no download
Build method matters at least as much
Before we get to the material chart, one point that’s often completely overlooked: how you build a piece of furniture often affects weight more than what it’s made of.
A concrete example from VanLogic’s own calculation logic: a bed frame measuring 140 × 200 × 30 cm, built from spruce battens (44 mm cross-section).
| Build method | Description | Weight |
|---|---|---|
| Open frame | Only corner posts + top/bottom rings, open in between — like scaffolding | 8.8 kg |
| Closed frame | A continuous, solid perimeter wall — like a plinth base | 43.1 kg |
Same material, same outer dimensions — yet there’s a factor of 5 between them, simply because one build method saves material wherever no load needs to be carried, while the other stays solid everywhere.
For carcass furniture (cabinets, boxes), VanLogic also has a “Frame + Panelling” build method: a slim batten frame carries the structure, a thin panel forms the outer skin. You can even choose different materials for the frame and the panelling — for example a sturdy but cheap spruce frame with a lightweight poplar plywood skin. In real-world van building, this is by far the most common approach, because it saves weight without losing stability.
The density chart: what the common panel materials actually weigh
All the figures below are checked against manufacturer datasheets and material databases, not estimated. Real products vary by manufacturer by roughly ±10–15% — the figures below are plenty accurate for planning; for the last bit of precision, check the datasheet of your specific supplier’s cut.
| Material | Density (kg/m³) | Weight at 12 mm | Weight at 18 mm | In VanLogic |
|---|---|---|---|---|
| Poplar plywood | 450 | 5.4 kg/m² | 8.1 kg/m² | ✓ Default material |
| Birch plywood | 700 | 8.4 kg/m² | 12.6 kg/m² | ✓ Default material |
| Phenolic-faced plywood (shuttering ply) | 750 | 9.0 kg/m² | 13.5 kg/m² | ✓ Default material |
| OSB3 | 650 | 7.8 kg/m² | 11.7 kg/m² | ✓ Default material |
| MDF | ~730 | 8.8 kg/m² | 13.1 kg/m² | Add as custom material |
| Particleboard (P2) | ~670 | 8.0 kg/m² | 12.1 kg/m² | Add as custom material |
MDF and particleboard aren’t currently included as default materials in VanLogic, because they’re used less often in van conversions (moisture sensitivity, see below). You can still add either one as a custom material with exactly these density values at any time.
Quick guide: which material for what in a van
Poplar plywood — the lightest of the common materials. Good for furniture carcasses where weight matters more than scratch resistance, e.g. interior cabinet walls or drawer bottoms.
Birch plywood — sturdier and more scratch-resistant than poplar, but noticeably heavier. Typical for worktops, exposed edges, or furniture fronts that need to take some abuse.
Phenolic-faced plywood (shuttering ply) — the toughest choice, water-resistant glued and coated on both sides. That’s also why it’s the heaviest. Makes sense for the floor or moisture-exposed spots (wet room, right under the shower), unnecessarily heavy for an interior cabinet.
OSB3 — cheap and sturdy, but visually rough. Often used as a subfloor or for hidden structural parts, less often as a visible surface.
MDF — a very smooth surface, easy to paint, but sensitive to moisture (it swells). In a van, only sensible in dry, protected spots, e.g. painted wall panels away from the kitchen or wet room.
Particleboard — the cheapest option, but at the same thickness heavier than poplar plywood and also moisture-sensitive. For a weight-optimised build, usually the wrong choice — unless price is the deciding factor.
Two real-world calculation examples
Example 1 — Base cabinet, same build method, different material. A base cabinet measuring 600 × 400 × 700 mm, closed box, 15 mm wall thickness:
- In birch plywood: ≈ 19.7 kg
- In poplar plywood: ≈ 12.7 kg
Almost 7 kg of difference for the exact same cabinet size — purely from the material choice.
Example 2 — Wall panelling, thin flat material. For a thin panel (12 mm), the area is nearly the only thing that matters — there’s no build-method choice to make. For a typical side wall of about 6 m²:
- In poplar plywood: approx. 32 kg
- In MDF: approx. 53 kg
Over 20 kg of difference for the exact same wall area — on wall panelling that rarely takes much structural load in the first place, that’s mostly unnecessary weight.
How to calculate this for your own build
Working through these examples by hand is tedious — as soon as you change shape, thickness, or build method, you have to redo the math. In VanLogic you don’t do this manually: you draw your piece of furniture, choose shape and build method, pick the material (or add your own with your density) — the weight is there instantly, including its effect on axle load and centre of gravity.
More on all build methods and how they’re calculated is in the In-App Help, Chapter 7. How material choice, build method and layout should work together from the start is covered in our ultimate guide to planning your camper floor plan.
Conclusion
Material weight isn’t a side issue — across a full build, pure material choice quickly adds up to 20–30 kg spread over many pieces of furniture. Combined with the right build method (frame + panelling instead of solid throughout), you can often save a double-digit kilogram amount without losing stability.
That pays off twice over: saving weight leaves you more buffer before the overload limit, better odds at your technical inspection — and because lighter materials can often be used higher up in the build too, the choice also has a positive effect on your van’s centre of gravity.
Before you build your next piece of furniture: work out what your chosen material actually weighs — not just when the van is on the scale.
→ Plan your build and calculate weight now — free, on vanlogic.app
About VanLogic: VanLogic is a planning app for campervan builders, made by a team that converts vans themselves. Every piece of furniture gets shape, dimensions, material and build method — the weight is calculated automatically, never estimated by hand. Available for iOS and Android — and testable directly in your browser.