Storing a Car Mid-Restoration: Shells, Parts and Stalled Projects

Restorations stall. A specialist retires, a panel takes nine months, money gets spent elsewhere, or life simply happens.

Storing a car during restoration is a different problem from storing a finished one, because a half-built car has none of the protection a finished car takes for granted.

Seven rules cover it. None of them are optional, and the first one is the one most projects break.

Bare Metal Has No Defences

A finished car has paint, underseal, seam sealer, cavity wax and a full set of seals. A shell in primer, or in bare steel, has none of that.

Etch primer is not weatherproofing. It is a key for paint, and it will let moisture through over months. A media-blasted shell left in a damp building will show surface rust in weeks rather than seasons.

That is why storing a car during restoration belongs in managed air rather than simply under a roof. Above 60% relative humidity steel corrodes, and a bare shell is all steel.

The Seven Rules

• Managed humidity, not just a roof. Held around 55%, measured rather than assumed. This is the whole ball game for exposed metal.
• Support the shell properly. On a rotisserie, a dolly or stands at the correct points. A shell with sills or floors cut out has no structural integrity and will distort under its own weight.
• Protect what is already finished. Chrome, glass and any painted panels wrapped or boxed separately. New paint is soft for weeks and scratches easily.
• Bag and label every part. Fasteners by assembly, not by size. Every restoration that stalls loses parts, and the parts it loses are always the ones nobody makes any more.
• Keep the parts with the car. Boxes in three places is how a project becomes unfinishable.
• Photograph everything before it comes apart. Or if it is already apart, photograph how it currently sits. In two years nobody remembers which way round a bracket went.
• Record where you stopped. A written note of the last job done and the next job planned is worth more than any of the above when somebody picks it up again.

The Parts Problem

Owners worry about the shell. The thing that actually kills a stalled project is the parts, because a shell can be re-made and a discontinued trim clip cannot.

Chrome and brightwork corrode in damp air and pitting does not polish out. Rubber seals harden. Wiring looms go brittle. Wood veneer lifts. Leather that has been cleaned but not fed dries and cracks.

All of those respond to the same 55% figure the shell wants, which is convenient. What that number does is set out in why 55% is the figure.

Storing a Car During Restoration, Between Specialists

Most restorations pass through several sets of hands: a bodyshop, a trimmer, an engine builder, an auto-electrician. The car spends real time waiting between them.

That waiting almost always happens somewhere unsuitable, because a bodyshop needs its space back and the next specialist is not ready. A yard, a barn or a corner of a unit is the usual answer and the usual mistake.

Storage between stages solves it, and transport is the other half. Ours runs to 65 miles from Stalybridge by arrangement, with longer moves handled through vehicle logistics. A part-built car often cannot be driven at all, so it travels on a transporter.

Paperwork on a Part-Built Car

A vehicle under restoration is still a registered vehicle. It should be declared off the road while it is not in use, and the registration stays live.

Where the car is over forty years old, tax and MOT exemptions may apply, and the DVLA sets out how they work. Exemption has to be applied for rather than assumed.

Keep receipts as you go. A restoration file is worth real money at sale, and it is impossible to reconstruct afterwards. Our piece on provenance and value covers why.

Restarting a Stalled Project

The hardest part of picking a project back up is not the work. It is working out where it stopped.

A project stored with its parts, its photographs and a written note of the last job done restarts in an afternoon. A project stored in three locations with nothing written down restarts in a fortnight of cataloguing, if it restarts at all.

That difference is worth more than the storage costs, and it is the reason we keep everything in one bay rather than stacking parts elsewhere in the building.

What It Costs

The humidity-controlled bay is £200 a month including VAT for the first three months, then £225. Secure indoor storage is £150, then £165, and for a bare shell it is the wrong choice.

Minimum stay is one month, so a project that suddenly finds a specialist can leave the same month. Figures sit on the locations and pricing page, and longer arrangements on the long-term car storage page.

One more thing worth doing while the car is still in pieces: weigh up what is genuinely worth finishing. Plenty of projects stall because the next stage costs more than the finished car will be worth, and a quiet year in a dry bay is a far better place to work that out than a damp garage with a deadline attached.

How Pitstop 66 Can Help

Part-built cars, non-runners and bare shells all arrive here, and none of them are unusual. Everything is photographed on arrival, kept together, and checked visually every working day.

Mechanics and a bodyshop are on site, so some of the waiting between specialists can stop being waiting. Classics are handled through classic car storage, and owners reach us from Cheshire and Oldham.

To arrange storage for a project, enquire here or call 0161 464 7494.

Also worth reading: why 55% relative humidity is the number, the records that carry a collector car and what changes after the first twelve months.

Key Takeaways

• Primer is a key for paint, not weatherproofing. Bare metal needs managed air.
• Support a cut shell properly or it will distort under its own weight.
• The parts kill more projects than the shell does. Bag, label and keep them with the car.
• Photograph everything, and write down where you stopped.
• A project stored with its file restarts in an afternoon. One without restarts in a fortnight.