Which construction type is described as having exterior walls that are usually masonry, but with interior lumber dimensions that are notably large, and with columns at least 8 by 8 inches and girders and joists at least 6 by 10 inches?

Which construction type is described as having exterior walls that are usually masonry, but with interior lumber dimensions that are notably large, and with columns at least 8 by 8 inches and girders and joists at least 6 by 10 inches?

• A. Type II - Non-Combustible
• B. Type III - Ordinary Construction
• C. Type IV - Heavy Timber
• D. Type V - Wood Frame Construction

Answer: (C)

This item tests the ability to recognize construction type by the combination of wall material and the size of interior structural members. When exterior walls are masonry and the interior uses notably large timber framing—columns at least 8 by 8 inches and girders and joists at least 6 by 10 inches—you’re looking at Heavy Timber construction. In this Type IV, vertical and horizontal loads are carried by solid timber members, while the exterior enclosure is masonry, providing fire resistance from both the masonry and the heavy timber frame. This differs from noncombustible construction, where interior framing is steel or concrete; from ordinary construction, which has masonry exterior but lighter interior wood framing; and from wood-frame construction, which uses lighter, typically all-wood framing without masonry exterior.

This item tests the ability to recognize construction type by the combination of wall material and the size of interior structural members. When exterior walls are masonry and the interior uses notably large timber framing—columns at least 8 by 8 inches and girders and joists at least 6 by 10 inches—you’re looking at Heavy Timber construction. In this Type IV, vertical and horizontal loads are carried by solid timber members, while the exterior enclosure is masonry, providing fire resistance from both the masonry and the heavy timber frame. This differs from noncombustible construction, where interior framing is steel or concrete; from ordinary construction, which has masonry exterior but lighter interior wood framing; and from wood-frame construction, which uses lighter, typically all-wood framing without masonry exterior.