How to Choose the Right Column Style for a Georgian Townhouse

A Georgian townhouse is a stack of rooms wrapped in one carefully judged facade, and the orders are what give that facade its grammar. Columns are not decoration bolted on at the end; they carry the proportions of the elevation and answer to the ceiling heights behind them. Put Doric in a first-floor drawing room with three and a half metre ceilings and the columns will look stunted. Reach for Corinthian at ground-floor level beside a fanlight and the entrance starts to preen.

The good news is that Georgian builders left us a working method rather than a rule book carved in stone. Here is how to match Doric, Ionic and Corinthian to real storey heights, facades and interiors — and where you can sensibly bend the rules.

Start With the Storey, Not the Style

Before you look at capitals, measure. Take the clear height of each storey from finished floor level to the underside of the cornice or ceiling, not to the structural floor above. You need the space the column actually has to live in, including whatever it stands on.

Georgian terraces almost always step down as they rise: a lower or ground floor, a tall first-floor piano nobile, then two or three diminishing upper storeys. Classical practice stacks the orders the same way, heaviest at the bottom — Doric below, Ionic in the middle, Corinthian at the top, as on the Colosseum. Georgian builders largely kept that sequence for pilaster rhythms and full elevations, but they also broke it, and often: a grand first-floor portico on a terrace house is frequently Corinthian or Composite, because that is the floor everyone sees and the floor with the height to carry it. Treat the stack as a default, not a law.

Two tests settle most arguments. Does the column have room for base, shaft, capital and entablature without the capital crowding the cornice? And does the order feel heavier than the storey below it? If the answer is yes to the first and no to the second, you are close.

What Each Order Brings

Doric

The shortest and plainest of the three, normally reckoned at about seven lower diameters in height. Its capital is a simple echinus and abacus, and the frieze carries triglyphs and metopes. In a Georgian context you will usually meet the Roman or Palladian version, which has a base; Greek Doric columns stood directly on the stylobate. Doric suits ground floors, porches, garden buildings and doorcases, and it is the right answer where ceilings are modest. It can look bald in a pale, flat-lit room, so fluting and a crisp shadow line do most of its work.

Ionic

Eight to nine diameters, a scrolled volute capital and a dentil cornice — richer and lighter in character than Doric, and the natural first-floor order on a domestic terrace. It is generous enough for a tall room and restrained enough not to compete with the plasterwork. The volutes are its charm and its difficulty: seen flat against a wall, they lose the spiral that makes them interesting. Where the bay allows, let the front columns stand free.

Corinthian

Nine to ten diameters, an acanthus capital about a diameter tall, and modillion or dentil cornices. Corinthian belongs on the storey with real height and something to celebrate: a piano nobile drawing room, a full-height entrance, the top of a formal stack. In a low room it swaggers, and the capital eats headroom you cannot spare. Composite, which sets Ionic volutes on a Corinthian bell, carries the same weight and is common in later Georgian and Regency work.

Proportions Worth Keeping in Mind

You do not need to work through a Palladian treatise to get this right. A handful of ratios will keep a column looking like a column:

• Height to diameter: roughly 7:1 for Doric, 8–9:1 for Ionic and 9–10:1 for Corinthian. Stretch them and the shafts go spindly; squeeze them and they read as bollards.
• Entablature: budget around one fifth of the column height for architrave, frieze and cornice, and remember it sits above the capital, not instead of it.
• Capital depth: Doric and Ionic capitals take far less vertical space than Corinthian, which needs about a full diameter. This is usually what decides between orders in a tight room.
• Fluting: the classical counts are twenty flutes for Doric and twenty-four for Ionic and Corinthian, with fillets between them on the latter two.
• Base and plinth: add both to your measurements. Ground-floor columns in a street setting generally want a plinth or pedestal for protection as well as proportion.
• Spacing: let the rhythm of the facade govern bay widths rather than the other way round. Crowd columns together and they read as a fence.

Facades, Interiors and Awkward Corners

On an exterior, pilasters are often the better answer than free-standing columns. They give you the

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