Small, with about 11 flutes to the inch. Large, with about 4 flutes to the inch.

Sizes

Those kept in stock range as high as 30 feet in area, the length not exceeding 120 inches, or the width 36 inches.

Thickness

Both plain and fluted (large and small) are made in the following thicknesses : - 1/8, 3/16, 1/4, 3/8 inch. The 1/8 thickness weighs about 2 lbs. per square foot, and the other thicknesses in proportion.

Uses

This glass is suitable to any position where coarse, strong, translucent material is required. The light is admitted without scorching or glare.

It is used for skylights, conservatories, cupolas, roofs of all kinds (the large-fluted form in especially large roofs). It is also used for the windows of railway stations, factories, etc.