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| Bargeboard
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Finish board covering the projecting and sloping portion (end rafter) of a gable roof. |
| Barites
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Paint pigment material, barium sulfate is a material opaque to X-rays. |
| Bark
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Outer coating on a tree. |
| Barlow's formula
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An equation which shows the relationship of internal pressure to allowable stress, nominal thickness and diameter. |
| Barn
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Enclosed agricultural building. |
| Barrel (petroleum)
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42 U.S. gallons (306 pounds of oil, or 5.78 million BTU). |
| Barrel bolt
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Door lock that consists of a cylindrical sliding bolt. |
| Barrel roof
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A roof configuration with a partial cylindrical shape to it. |
| Barrel tiles
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Rounded clay roof tiles most often used on Spanish-style houses. Usually red, but available in many colors. |
| Barricade
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Barrier used to keep people away from areas that may be dangerous. |
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