A painting panel is a rigid wood or composite surface for painting, the dominant support before canvas. Learn its history from Byzantine icons to modern MDF, types, and how to choose one.
Before canvas, there was panel. For the first thousand years of European easel painting, from the Byzantine icons of the 6th century to the Renaissance altarpieces of the 15th and 16th centuries, wood panel was the surface. Every painting you know from this period, from Giotto's Ognissanti Madonna (c. 1310) to Jan van Eyck's Ghent Altarpiece (1432) to Botticelli's Primavera (c. 1480), was painted on wood. Canvas only overtook panel in the 16th century, and even then, the transition took another hundred years in Northern Europe. Rembrandt used both. Vermeer used mostly canvas. But the greatest precision in Western painting, the minute detail of Early Netherlandish art and the luminous surfaces of Italian tempera, was achieved on panel, not canvas.
A painting panel is a rigid, flat surface made of wood or composite material, used as a support for painting. Panels are made from solid wood (poplar, oak, mahogany, birch), plywood, MDF (medium-density fiberboard), or hardboard (Masonite). The surface is prepared with gesso or primer before painting, creating a smooth, stable ground for oil, acrylic, tempera, or mixed media. Panel was the dominant painting support in Europe from late antiquity through the 16th century, when canvas replaced it for most easel painting. Panel remains in use today, valued for its rigidity, smooth surface, and dimensional stability.
This entry covers the history of painting panel, the types of wood and composite materials used, how panels are prepared, and how to choose one today.
A painting panel provides a rigid, non-flexible surface for painting. This is its primary advantage over canvas. Canvas flexes, which means the paint film on top of it flexes too. Over centuries, this flexing causes cracks in the paint. Panel, being rigid, does not flex, which means the paint film remains more stable over time. This is why paintings on panel from the 14th and 15th centuries often have smoother, less cracked surfaces than paintings on canvas from the 17th century.
The rigidity of panel also allows for a smoother painting surface. Canvas has a woven texture that shows through thin paint layers. Panel, when properly gessoed and sanded, can be made perfectly smooth, which is why the Early Netherlandish painters, who worked in oil with extraordinary detail, preferred panel. Van Eyck could paint individual hairs and fabric threads on a gessoed panel surface that would have been impossible on the textured surface of canvas.
The disadvantage of panel is weight and size. A wooden panel large enough for an altarpiece is heavy and difficult to transport. Canvas can be rolled and shipped. Panel cannot. This practical limitation was a major reason canvas replaced panel for large-scale work in the 16th century. Panel is also susceptible to warping and cracking from humidity changes, which is a serious conservation challenge for old panel paintings.
The earliest surviving panel paintings are the encaustic icons at Saint Catherine's Monastery in Sinai, dating from the 6th century. These icons, painted with heated wax on wooden panels, are among the oldest Christian paintings in existence. The encaustic technique, which uses hot wax as the paint binder, was the standard for early panel painting before egg tempera replaced it.
In the 13th and 14th centuries, Italian panel painting reached a high point with artists like Duccio di Buoninsegna, Cimabue, and Giotto. Duccio's Maesta (1308-1311), painted on poplar panels in egg tempera, is the most famous Sienese altarpiece. Giotto's Ognissanti Madonna (c. 1310), also on panel, shows the shift toward naturalism that would define the Renaissance. The technique of panel preparation was documented by Cennino Cennini in Il Libro dell'Arte (The Craftsman's Handbook) around 1390, which describes the process of sizing the wood, applying multiple layers of gesso grosso and gesso sottile, and sanding to a smooth finish.
The Renaissance was the golden age of panel painting. In Italy, poplar was the standard panel material. Botticelli's Primavera (c. 1480) and Birth of Venus (c. 1485) are on poplar panels. Leonardo da Vinci's Mona Lisa (c. 1503-1519) is painted on a single poplar panel, which is one reason it has survived in relatively good condition. In Northern Europe, oak was preferred. Jan van Eyck's Ghent Altarpiece (1432) is painted on oak panels. Rogier van der Weyden, Hans Memling, and other Early Netherlandish painters worked on oak, which is denser and more stable than poplar.
The preparation of panels was laborious. According to the Getty Conservation Institute's research on panel-making techniques, the process involved selecting and seasoning the wood, joining multiple boards with animal glue, sizing the surface with animal glue, and applying layer upon layer of gesso, each sanded before the next was applied, sometimes as many as 15 layers, before a smooth hard surface emerged. Read the Getty research at Getty Conservation Institute.
Canvas replaced panel as the dominant painting support in Europe during the 16th century, led by Venetian painters. Venice's high humidity caused wooden panels to swell, warp, and crack. Canvas, being flexible, tolerated humidity changes better. Venice was also a center of sailcloth production. The same hemp sailcloth that equipped the Venetian fleet was available to painters. Titian, Tintoretto, and Veronese led the transition. Canvas could be produced in much larger sizes than panel and was lighter and transportable.
The shift took longer in Northern Europe. Panel paintings remained common in the Netherlands through the 17th century. Rembrandt used both supports. Vermeer used canvas for most of his surviving works. Many Dutch Golden Age painters used panel for small works, valuing the smooth surface for fine detail. By the 18th century, canvas had become the standard support for easel painting across Europe, and panel became unusual except for small works.
A 2023 book by Cleo Nisse, Venetian Canvas and the Transformation of Painting, published by Princeton University Press, investigates why Venetian artists adopted canvas and how it revolutionized their art between 1400 and 1600. Nisse demonstrates that canvas changed not only the making but the meaning of paintings. Read more at Princeton University Press.
Panel never disappeared entirely. In the 19th century, the Pre-Raphaelite Brotherhood in England returned to panel for some of their highly detailed works, seeking the smooth surface that allowed for the precision they admired in Early Netherlandish painting. In the 20th century, pressed board, also known as Masonite or hardboard, emerged as a popular panel material. According to the CyPaint guide, pressed board gained popularity during the 1920s and 1930s as a cost-effective alternative to canvas, and its use was bolstered by WPA (Works Progress Administration) projects. Read more at CyPaint.
Today, painting panels are made from a variety of materials, including solid wood, plywood, MDF, and hardboard. They are sold pre-gessoed or unprimed, in sizes from small study panels to large-scale supports. Many contemporary painters use panels for specific applications where rigidity and smoothness matter, such as portraiture, detailed realism, and plein air painting.
Traditional panel paintings were made from single boards or multiple boards joined with animal glue. Poplar was standard in Italy. Oak was standard in Northern Europe. Mahogany, birch, and cedar are also used. Solid wood panels are the most traditional but also the most prone to warping and cracking. Modern solid wood panels are typically made from kiln-dried wood to reduce moisture content and minimize movement.
Plywood panels are made from thin layers of wood veneer glued together with the grain directions alternating. This construction makes plywood more dimensionally stable than solid wood, less prone to warping and splitting. Birch plywood is a popular choice for painting panels because it has a smooth, tight grain and is readily available. Baltic birch plywood, made from multiple thin layers of birch veneer, is particularly valued for its stability and smooth surface.
MDF (medium-density fiberboard) is made from wood fibers bonded with resin under heat and pressure. MDF is dimensionally stable, inexpensive, and available in large sizes. It has a smooth surface that takes gesso well. The main drawback is that MDF is heavy and can absorb moisture if not properly sealed on all edges. MDF panels are widely used by contemporary painters and are sold by art supply companies like Ampersand under brand names like Hardbord.
Hardboard is a type of fiberboard made by compressing wood fibers under heat and pressure. Masonite is the best-known brand name. Hardboard is thinner and lighter than MDF, with a smooth side and a textured side. It was widely used in the 20th century, particularly during the Great Depression when artists sought affordable materials. Hardboard must be primed before painting, and some conservators have raised concerns about its long-term archival properties because it can absorb moisture and deteriorate over time.
Modern composite panels combine different materials. Ampersand makes panels with an MDF core and a specialized surface coating designed for specific media. Their Claybord has a kaolin clay surface, their Gessobord has an acrylic gesso surface, and their Pastelbord has a pastel-ground surface. These panels offer the rigidity of MDF with surfaces optimized for specific media.
For oil painting, a gessoed panel provides a smooth, stable surface that is ideal for detailed work, portraiture, and any painting where you want to avoid the texture of canvas. Birch plywood panels and MDF panels from Ampersand are popular choices. For acrylic painting, the same panels work well, and acrylic gesso adheres to panel surfaces without the flexibility concerns that affect oil paint over acrylic gesso on canvas. For plein air painting, lightweight panels like hardboard or thin MDF are practical because they are portable and rigid.
For archival work, choose a panel made from stable material (birch plywood, MDF, or hardboard) and seal all edges to prevent moisture absorption. Apply gesso in multiple thin layers, sanding between coats, to create a smooth surface. For the traditional approach, use rabbit skin glue size and oil primer on a birch plywood panel for an oil ground that matches the surface quality of old master paintings.
For more on how panels are prepared, read our entry on gesso. For the flexible alternative that replaced panel, see our entry on canvas. For a hybrid surface that combines canvas texture with panel rigidity, see our entry on canvas panels. For the rigid surface used for drawing and illustration, see our entry on illustration board. And for a deeper dive into painting practices, read our post on oil painting techniques to understand how the choice of surface shapes every painting.
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