Designing With Mouldings | Wood Moldings | Mouldings One
AN INTRODUCTION TO MOULDINGS

THE FOUNDATIONS OF TRADITIONAL WESTERN DESIGN ARE BASED IN THE OLDEST TYPES OF ARCHITECTURE AND SPECIFICALLY IN THE CLASSICAL TEMPLE ARCHITECTURE OF ANCIENT GREECE AND ROME. THE VARIOUS TYPES OF TEMPLES, THE DORIC, IONIC AND CORINTHIAN, MOST EASILY IDENTIFIED BY THEIR UNIQUE COLUMN CAPITALS AND OTHER DETAILS ARE AN EXPRESSION OF A COMPLETE SET OF ELEMENTS RELATED TO EACH OTHER BY A SYSTEM OF PROPORTION. THESE PROPORTIONS SET THE SIZE AND HEIGHTS OF PEDESTALS, COLUMNS AND ENTABLATURES AND OF THE PIECES AND PARTS THAT MAKE UP THE WHOLE.

WHEN APPLIED TO MODERN WORK, THESE PROPORTIONS INFORM THE SIZE OF A CORNICE, THE NATURE OF A DOOR OR WINDOW CASING AND THE OTHER MOULDINGS AND DETAILS OF A BUILDING. THE SHAPES AND PROFILES AND THEIR COMBINATIONS ARE GOVERNED BY RULES OF COMPOSITION, MUCH LIKE ANY OTHER LANGUAGE. IN MANY INSTANCES, THE DESIGNS OF MOLDINGS ARE DERIVED FROM CLASSICAL EXAMPLES IN GREEK AND ROMAN TEMPLE ARCHITECTURE. SOME SHAPES AND COMBINATIONS ARE DERIVED FROM OTHER SOURCES SUCH AS THE GOTHIC ARCHITECTURE OF THE MIDDLE AGES. IN ANY CASE, A BASIC KNOWLEDGE OF HISTORICAL PRECEDENTS, THE NAMES OF THE SHAPES OF THE MOLDINGS, AND THEIR COMMON USAGE MAKES SUCCESSFUL DESIGN OF A TRIM PACKAGE IN A BUILDING EASIER AND MORE SATISFYING.

THE VOCABULARY OF MOULDINGS

Moldings are combined in a way similar to how words are combined to form a language with rules of conventional sentence structure, grammar and syntax.

The shapes shown are the basic "words" or building blocks for architectural mouldings. They are divided into the following geometric categories: plane, concave, convex, and compound. Among the straight mouldings, a small straight surface is referred to as a fascia and a very small straight surface, a fillet. The concave and convex mouldings are typically based on portions of a circle or an ellipse forming the cove, ovolo, echinus, scotia, torus, and conge shapes. Compound mouldings combine these shapes into the cyma, beak, and ogee.

THE FIVE ORDERS OF ARCHITECTURE

There are five classical orders or architecture - Tuscan, Doric, Ionic, Corinthian, and Composite. Of the five, the three most distinct and recognizable are the Doric, Ionic and Corinthian. The Doric tends to be simplest, with generally more stout proportions. The Ionic is distinguished by column capitals that include opposing volutes. The Corinthian is the tallest and most slender, with capitals adorned with leaves of the Acanthus plant. The Tuscan order was reserved for the most basic of buildings and is the least ornamented. The Composite order, as its name suggests, is made of elements from the other orders, but most closely resembles the Corinthian.

CLASSICAL ORIGINS OF MOULDINGS

While architectural moldings are frequently justified for only the purpose of covering gaps and intersections in construction, the application of the forms and proportions of Classical Architecture leads to beautiful scale and detail.

The sizes and proportions of moldings and their locations can easily be associated with the Classical Orders (previous pages) as shown in the corresponding drawing. Many of the parts retain their names from classical architecture - an architrave, the spanning element in temple construction, is also the header piece over a door or window - the casing. A cornice or frieze - the highest element in a classical entablature, is associated with a crown molding or fascia. The Dado, or the element at the top of a pedestal, can be interpreted as a chair rail. The forms of the various profiles use the same terminology whether refering to the elements in a classical temple or the shape of a wooden trim molding - cyma, bead, fillet, ogee, half-round, quarter-round, etc.

DESIGNING WITH MOULDINGS

Mouldings are used to express structural and formal transitions. Just as in designing the basic structure and form of a building or room, restraint, order, and clarity of expression should inform the design and the placement of mouldings.

The following pages discuss some important concepts for successful composition and design.

For further reading, C. Howard Walker's 1926 book, "Theory of Mouldings", presents a thorough description of the subject.

"MOULDINGS ARE HONORABLE THINGS WHICH ARE NOT TO BE TREATED CASUALLY OR COPIED BLINDLY."

-C. HOWARD WALKER
1. OBSERVE HISTORICAL PRECEDENT

TO ACHIEVE A PARTICULAR HISTORICAL APPEARANCE, OR TO EMBODY THE DESIGN ETHOS OF A PERIOD, IT IS POSSIBLE TO REFERENCE AUTHENTIC HISTORICAL EXAMPLES OF MOULDING COMBINATIONS. THE CLASSICAL ORDERS, AS DEFINED BY VIGNOLA, WARE, AND OTHERS, DOCUMENTATION OF HISTORIC STRUCTURES, SUCH AS THE DRAWINGS OF THE HISTORIC AMERICAN BUILDING SURVEY OR THE WHITE PINE SERIES OF ARCHITECTURAL MONOGRAPHS PROVIDE MANY EXAMPLES OF HANDSOME SCHEMES. PHOTOGRAPHS AND DIMENSIONED DRAWINGS EXIST FOR ALMOST ALL STYLES OF WORK FROM MOST CULTURES AND CONTINENTS, AND CAN BE USED FREELY TO CREATE YOUR OWN DESIGNS, BASED ON THE BEST EXAMPLES OF THE PAST AND PRESENT.

THE FOLLOWING PAGE SHOW FREQUENTLY ADOPTED COMBINATIONS OF MOULDINGS, IN THIS CASE, FROM THE BUILDINGS ON THE ACROPOLIS AT ATHENS, THE ROMAN FORUM, AND FROM SPALATO.

"GOOD AND BAD EXAMPLES OF MOULDING COMBINATIONS AND DESIGN ARE ALL AROUND US. THE KEY IS OBSERVING WHAT LOOKS GOOD AND WHAT DOES NOT AND EMULATING THE MOST SUCCESSFUL EXAMPLES."

- DAVID ELLISON, ARCHITECT
2. HARMONIZE PROPORTION AND SCALE

PROPORTIONING SYSTEMS ARE DERIVED FROM THE RELATIONSHIPS BETWEEN NUMBERS AND ARE EXPRESSED AS FRACTIONS OR RATIOS. THESE RATIOS EXIST ALL AROUND US IN MUSICAL SCALES, THE CLASSICAL ARCHITECTURAL ORDERS, THE FORMS OF NATURE, AND IN NUMBERING SYSTEMS.

THE ILLUSTRATION AT THE TOP SHOWS HOW THE OVERALL COMPOSITION OF THE HEIGHT AND WIDTH OF A ROOM AND THE SUBDIVISION OF THE SPACES ON ITS WALLS ARE ALL RELATED TO THE VARIOUS PARTS. THE CORNICE, THE PROFILE OF THE ARCHITRAVE MOULDING, THE DIVISION OF THE PARTS OF DADO OR WAINSCOT, ALL ARE RELATED TO THE WALL AS A WHOLE. LIKEWISE, THE LENGTH OF A ROOM, THE RELATIONSHIP OF ONE ROOM TO ANOTHER, AND OF THE PARTS OF A BUILDING TO A WHOLE ARE RELATED TO EACH OTHER PROPORTIONATELY. THE MORE CONSISTENT AND BALANCED THE PROPORTIONS AND SCALE, THE MORE APPEALING AND HARMONIOUS ON BOTH AN IMMEDIATE AND SUBLIMINAL LEVEL.

FOR FURTHER READING ABOUT PROPORTION AND SCALE, WE RECOMMEND THE ARCHITECTURE OF THE CLASSICAL INTERIOR BY STEVEN SEMES.

3. INTEGRATE LIGHT AND SHADE

WHEN DESIGNING WITH MOULDINGS, THE EFFECT OF LIGHT AND SHADE IS OF MORE IMPORTANCE TO THE INITIAL DESIGN IDEA THAN THE SELECTION OF SPECIFIC PROFILES. SUCCESSFUL DESIGN AND COMPOSITION REQUIRES INTEGRATING A CORRECT BALANCE BETWEEN TEXTURES, HIGHLIGHTS, AND SHADOWS IN RELATION TO THE DIRECTION OF THE LIGHT THEY RECEIVE.

SHADOWS UPON FLAT SURFACES ARE EVEN IN TONE. REGULAR CURVES MADE FROM SECTIONS OF A CIRCLE WILL CREATE AN EVEN GRADATION OF LIGHT AND SHADE. IRREGULAR CURVES, SECTIONS OF ELLIPSES OR OTHER SHAPES, WILL CAUSE THE INTENSITY OF THE LIGHT AND SHADE TO VARY ACROSS THEIR SURFACES.

FOR MORE INFORMATION: ARCHITECTURAL SHADES AND SHADOWS, BY HENRY MCGOODWIN, BOSTON, 1904. ARCHITECTURAL RENDERING IN WASH, BY HAROLD BUREN VAN MAGONIGLE, NEW YORK, 1921.

"NOW, IF IT IS OF IMPORTANCE THAT THE STUDENT SHOULD BECOME THOROUGHLY FAMILIAR WITH THE ORDERS AND OTHER ELEMENTS OF ARCHITECTURAL COMPOSITIONS, IT IS EQUALLY IMPORTANT THAT HE OR SHE SHOULD BECOME QUITE AS FAMILIAR WITH THE SHADOWS OF THESE ELEMENTS."

-HENRY MCGOODWIN
4. AVOID MONOTONOUS REPETITION UNLESS EXPRESSING A TEXTURE OR PATTERN

REPETITION OF A MOULDING PROFILE IS REDUNDANT AND MONOTONOUS. USING EQUAL OR SIMILAR MOLDINGS SIDE BY SIDE OR ONE ON TOP OF ANOTHER SHOULD BE AVOIDED UNLESS THE GOAL IS TO EXPRESS A TEXTURE OR PATTERN.

REGULAR CURVES MADE FROM SECTIONS OF A CIRCLE WILL CREATE AN EVEN GRADATION OF LIGHT AND SHADE, WHILE IRREGULAR CURVES MADE FROM CONIC SECTIONS, ELLIPSES, ETC., WILL CREATE VARIATION IN THE INTENSITY OF LIGHT AND SHADE ACROSS THEIR SURFACES. THE ANCIENT GREEK MOLDING PROFILES TEND TO USE IRREGULAR CURVES WHILE ROMAN EXAMPLES TEND TO USE REGULAR CURVES. THE INTEREST AND VITALITY CREATED BY IRREGULAR CURVES IS THOUGHT BY SOME TO BE PREFERABLE TO THE MORE REGULAR (AND POTENTIALLY MONOTONOUS) EFFECT OF REGULAR CURVES. STILL, USING TOO MANY OR TOO LARGE MOULDINGS CAN RUIN THE APPEARANCE OF EVEN THE MOST IRREGULAR OF CURVES AND THE JUDICIAL USE OF A SIMPLE QUARTER ROUND OR QUIRK BEAD CAN BE ENOUGH TO BREATHE LIFE INTO A DESIGN.

5. MAINTAIN FACIAL ANGLES

GENERAL HARMONY IN CHARACTER IS OBTAINED BY FACIAL ANGLES ON MOULDINGS.

BY USING FACIAL ANGLES IN GROUPS AND IN UNITS, AN EVEN QUALITY OF TONE OF SHADOWS IS MAINTAINED AND HARMONY MAY BE ACHIEVED.

IN EXTERIOR WORK ILLUMINATED BY A SINGLE LIGHT SOURCE LIKE THE SUN OR MOON, CONSISTENT FACIAL ANGLES MUST BE MAINTAINED OR THE HARMONIC ENTITY OF A BUILDING WILL BE RUINED. IN INTERIOR WORK IT IS NOT AS IMPORTANT THAT FACIAL ANGLES BE MAINTAINED SINCE THE DIRECTION OF THE LIGHT FREQUENTLY COMES FROM DIFFERENT AND MULTIPLE DIRECTIONS.

ASSUMING A CURVE WITH ITS CENTER AT AROUND EYE-LEVEL – THE TANGENT TO THE CURVE WILL BE THE DEFINING LINE OF THE FACIAL ANGLES OF THE MOULDINGS AT THOSE POINTS. IN THE ILLUSTRATION, IT IS CLEAR THAT THE CORNICE MOULDINGS LEAN INTO THE ROOM, WHILE THE BASE MOULDINGS STEP INTO THE ROOM. IN THIS WAY, THE FACIAL ANGLES OF THE MOULDINGS IN AN INTERIOR WILL HAVE A HARMONIC RELATIONSHIP.

6. CHOOSE A DOMINANT ELEMENT WITHIN A GROUP OF MOULDINGS

IN A GROUP OF MOULDINGS, THE USE OF A DOMINANT PLANE OR PROFILE WILL ESTABLISH ITS CHARACTER. THE DOMINANT ELEMENT ANNOUNCES AND CONTROLS THE GROUP. THE LACK OF A DOMINANT ELEMENT WILL CREATE A MONOTONOUS EFFECT.

A DOMINANT CONVEX FORM HAS AN EXCESS OF MATERIAL AND CREATES THE EFFECT OF ROBUST STURDINESS. A DOMINANT CONCAVE FORM SUBTRACTS MATERIAL AND CREATES AN EFFECT OF DELICACY AND LIGHTNESS. CONTRASTING THE CONVEX AND CONCAVE FORMS GIVES INTEREST AND VIVACITY. USING ONE TYPE WITHOUT THE OTHER TENDS TOWARD DULL MONOTONY.

THE DRAWINGS TO THE RIGHT SHOW SOME MOULDING COMBINATIONS WHERE THE DOMINANT ELEMENTS ARE IN HARMONIC PROPORTION TO THE OTHERS. AT THE BOTTOM RIGHT, THE PROPORTION OF THE DOMINANT ELEMENTS ARE UNHARMONIC, OR UNCOUTH.

7. USE CLARITY OF EXPRESSION AND RESTRAINT

SIMPLICITY, HARMONY OF CHARACTER AND SCALE, AND CLEARNESS OF EXPRESSION CREATE THE SENSE OF GOOD PROPORTIONS IN MOULDINGS. RESTRAINT IN THEIR USE IS A VIRTUE, AS IS SHOWN BY THE PROPORTIONS AND SECTIONS OF GREEK MOULDINGS.

THE DRAWINGS TO THE RIGHT ARE COMBINATIONS OF MOULDINGS THAT ARE FREQUENTLY ADOPTED FROM GREEK ORIGINALS.

"THERE IS NO MORE COMMON FAULT IN DESIGNING MOULDINGS THAN THAT OF MAKING THEM EXCESSIVE IN QUANTITY AND SCALE."

-C. HOWARD WALKER


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