Draw a Cylindrical Can with Contour and Label

Object Drawing Lessons

A cylindrical can is a strong practice subject because it combines a simple outline with two ellipses that must match in width and orientation. This lesson shows how to build the can from a center line, set the top and bottom ellipses, place a label band that wraps around the curve, and check the result with a few measurable tests. The convention used here is a straight-on view with the can standing upright: the top ellipse is fully visible, the bottom ellipse is partly hidden by the body, and the label band is a horizontal strip whose left and right edges curve with the cylinder. Letter styles vary, so the label text is judged by placement and legibility rather than by one exact handwriting style.

Practice materials: Printable downloads are not available for this lesson yet. Use the instructions and four exercises below.

Set the center line and the two ellipses

Begin with a light vertical center line. Mark the total height of the can on this line, then mark the height of the label band. The top ellipse sits at the top mark and the bottom ellipse sits at the bottom mark. Both ellipses share the same center line, so their left and right edges line up vertically.

An ellipse has a major axis (the full width) and a minor axis (the short height). For a straight-on can, the top ellipse is drawn as a full closed curve. The bottom ellipse is drawn as a full curve too, but the front half is later covered by the can body, so only the back half remains visible. Keep the minor axis the same for both ellipses; this makes the can look like it is standing on a level surface.

1. Draw a light vertical center line and mark the top and bottom height.
2. Mark the full width of the can on a horizontal line at the top; this is the major axis of the top ellipse.
3. Choose a small minor axis, for example one quarter of the major axis, and mark it above and below the top height mark.
4. Draw the top ellipse through the four axis marks, keeping it smooth and symmetrical.
5. Repeat the same major and minor axis at the bottom height mark to draw the bottom ellipse.
6. Erase the front half of the bottom ellipse so only the back curve remains visible.

Build the contour and the label band

The contour is the outer edge of the can. Connect the left edge of the top ellipse to the left edge of the bottom ellipse with a straight vertical line, and do the same on the right. These two lines should be parallel and the same length. The contour is now a rectangle with an ellipse on top and a curved bottom edge.

The label band is a horizontal strip on the cylinder. Its top and bottom edges are curves that follow the cylinder's cross-section at that height; edges nearer the top or bottom of the can appear shallower than edges near the middle, and all band edges curve in the same direction as the can's ellipses. Place the band between the top and bottom marks, then draw its left and right edges as short vertical lines that stop at the contour. The band should not touch the top or bottom ellipse unless the design says so.

1. Draw the left and right vertical contour lines from the top ellipse edges to the bottom ellipse edges.
2. Mark the label band height on the center line.
3. Draw the top edge of the band as a shallow curve that matches the ellipse direction.
4. Draw the bottom edge of the band as a parallel shallow curve.
5. Close the band with short vertical lines at the left and right contour.
6. Add simple label text inside the band, keeping letters upright and evenly spaced.

Check the drawing with simple measurements

Use a ruler or a straight edge to check that the left and right contour lines are parallel and equal in length. Check that the top and bottom ellipses have the same width. Check that the label band is centered on the can and that its left and right edges are the same distance from the contour. These checks catch the most common errors before shading or lettering.

If the can looks tilted, the center line is probably not vertical or the two ellipses are not aligned. If the can looks flat, the minor axis is too small. If the label band looks like a flat rectangle, its top and bottom edges are too straight. Adjust these three features first, then refine the lettering.

1. Measure the width of the top ellipse and the width of the bottom ellipse; they should match.
2. Measure the left and right contour lines; they should be equal and parallel.
3. Check that the label band is the same distance from the left and right contour.
4. Check that the band edges curve in the same direction as the ellipses.
5. Check that the label text sits inside the band and does not cross the contour.

Worked example

A can is drawn with a top ellipse 8 cm wide and a minor axis of 2 cm. The can height is 12 cm and the label band is 4 cm tall, starting 3 cm below the top. Describe where the band edges go and give one check.

Four practice exercises

Common mistakes

• Drawing the top and bottom ellipses with different widths. Use the same major axis length for both ellipses and measure from the center line to each edge.
• Making the bottom ellipse a full oval that shows through the can body. Erase the front half of the bottom ellipse so only the back curve remains visible.
• Drawing the label band as a flat rectangle. Curve the top and bottom edges of the band to follow the cylinder, using shallow curves that match the ellipse direction.
• Letting the label text run past the contour. Keep the text inside the band and stop each line before the left and right contour lines.

Self-check rubric

• Top and bottom ellipses have equal width and a consistent minor axis.
• The bottom ellipse shows only the back curve, not the front half.
• Left and right contour lines are parallel and equal in length.
• The label band is placed between the top and bottom marks and stays inside the contour.
• The band edges curve with the cylinder rather than forming a flat rectangle.
• Label text is legible, evenly spaced, and inside the band.
• Valid alternatives are accepted: different minor axis values, different band heights, and different letter styles, as long as the checks above hold.

Questions and answers