Company Directory
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Dan Smith
Professional Engineer
Over 30 Years of Experience
Dan's Resume
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Andrew Smith
Technical Consultant
Project Manager
Employed since 1999
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Katherine Walker
CADD Drafter
Employed since 2007
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Tara Watson
CADD Drafter
Employed since 2008
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Floors
Decking and Insulation:
Plywood:
| 3/8" |
1.1psf |
| 1/2" |
1.5psf |
| 5/8" |
1.8psf |
| 3/4" |
2.2psf |
| 1-1/8" |
3.3psf |
| Wood, 1" |
2.3psf |
Decking:
| 2" |
4.3psf |
| 3" |
7.0psf |
| 4" |
9.3psf |
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| Rigid Fiberglass (1" thick) |
1.5psf |
| Syrofoam (1" thick) |
0.2psf |
| Poured Gypsum (1" thick |
6.5psf |
| Rock Wool (Roll or batt-1") |
0.4psf |
| Glass Wool (Roll or batt-1") |
0.2psf |
| Vermiculite Concrete (1") |
2.6psf |
| Sheathing, 1" |
2.3psf |
| Petrical, 1" thick |
2.7psf |
Coverings
| Hardwood (1" nominal) |
4.0psf |
| Quarry or Ceramic Tile, 3/4" |
10.0psf |
| Linoleum or Soft Tile |
1.5psf |
| Vinyl Tile 1/8" thick |
1.4psf |
| Soft Tile and Sheet |
1.5psf |
| GypCrete 3/4" |
6.5psf |
Concrete:
| Regular, 1" thick |
12.0psf |
| Reinforced (1-1/2" thick) |
17.5psf |
| Lightweight (1-1/2" thick) |
12.5psf |
| Terrazo (1-1/2" thick) |
19.0psf |
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| Cement Finish (per inch thick) |
12.0psf |
Walls/Partitions
Masonry, per 4" thickness:
| Brick |
38.0psf |
| Concrete Block |
30.0psf |
| Cinder Concrete Block |
30.0psf |
| Stucco, 7/8" thick |
10.0psf |
| Hollow Clay Tile (load bearing) |
23.0psf |
| Hollow Clay Tile (nonbearing) |
18.0psf |
| Hollow Gypsum Block |
13.0psf |
| Limestone |
55.0psf |
| Terra-cotta Tile |
25.0psf |
| Stone |
55.0psf |
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| Wood Paneling, 1" |
2.5psf |
Wood Studs, 2x4 D.F. & Larch:
| 12" o.c. |
1.3psf |
| 16" o.c. |
1.0psf |
| 24" o.c. |
0.7psf |
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| Glass Block, 4" |
18.0psf |
| Glass Plate, 1/4" |
3.3psf |
| Glazed Tile |
18.0psf |
| Marble or marble wainscoting |
15.0psf |
Plaster:
| 1" |
8.0psf |
| Wood Lath, 1" |
10.0psf |
| Metal Lath, 1" |
8.5psf |
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| Gypsum Wallboard, 1" |
5.0psf |
| Porcelain-enameled steel |
3.0psf |
| Windows-glass, frame and sash |
8.0psf |
| Interior (studs 16" o.c.) |
50.0psf |
| Exterior (studs 16" o.c.) |
85.0psf |
| Exterior (studs 16" o.c./brick) |
400.0psf |
Ceilings
Gypsums Board:
| 1/2" |
2.2psf |
| 5/8" |
2.8psf |
| 5/8" Type X |
3.0psf |
| 1" |
5.0psf |
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| Accoustical Fiber Tile |
1.0psf |
| Metal Suspension |
0.8psf |
| Wood Suspension |
1.5psf |
| Metal Grid System |
0.8psf |
| Metal Suspension with Tile |
1.8psf |
| Wood Suspension with Tile |
2.5psf |
| Plaster, 1" |
8.0psf |
| Plaster on wood lath, 1" |
10.0psf |
| Plaster on metal lath, 1" |
8.5psf |
Roofing
| Asphalt Shingles |
2.5psf |
| Wood Shakes |
3.0psf |
| Roll Roofing |
1.0psf |
| Asphalt Shingles, approx 1/4" |
2.0psf |
| Cement asbestos shingles, 3/8" |
4.0psf |
| Clay Tile (add 10psf for mortar) |
9.0psf |
| Ludowici |
10.0psf |
| Roman |
12.0psf |
| Slate, 1/4" |
10.0psf |
| Spanish |
19.0psf |
| Wood, 1" |
3.0psf |
| Cement Tile (add 6psf for mortar) |
10.0psf |
| Corrugated Asbestos/Cement |
4.0psf |
Composition
| 235 lb Shingle & Paper |
5.0psf |
| 3-ply Ready Roofing |
1.0psf |
| 2-15 lb + 1-90lb |
1.7psf |
| 3-15 lb + 1-90lb |
2.2psf |
| 3-ply + Gravel |
5.6psf |
| 4-ply + Gravel |
6.0psf |
| 5-ply + Gravel |
6.5psf |
Decking:
| Tectum, 1" thick |
2.0psf |
| Insulrock, 1" thick |
2.7psf |
| Poured Gypsum, 1" thick |
6.5psf |
| Vermiculate Concrete, 1" thick |
2.6psf |
Plywood Sheathing:
| 3/8" |
1.1psf |
| 1/2" |
1.5psf |
| 5/8" |
1.8psf |
| 3/4" |
2.3psf |
| 1" |
3.0psf |
| 1-1/8" |
3.4psf |
Tile
| Cement (with mortar) |
16.0psf |
| Clay, 2" book |
12.0psf |
| Clay, 3" book |
20.0psf |
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| Slate, 1" thick |
40.0psf |
| Wood Shingles, 1" thick |
3.0psf |
Lumber(40pcf)
| Size |
12" |
16" |
19.2" |
24" |
| 2x4 |
1.5 |
1.1 |
0.9 |
0.8 |
| 2x6 |
2.3 |
1.7 |
1.4 |
1.2 |
| 2x8 |
3.0 |
2.3 |
1.9 |
1.5 |
| 2x10 |
3.9 |
3.0 |
2.4 |
2.0 |
| 2x12 |
4.7 |
3.3 |
2.9 |
2.4 |
Sprinkler Systems
| Pipe Size |
Dry(PLF) |
Wet(PLF) |
| 1 |
1.7 |
2.1 |
| 1-1/4 |
2.3 |
3.0 |
| 1-1/2 |
2.7 |
3.6 |
| 2 |
3.7 |
5.2 |
| 2-1/2 |
5.8 |
7.9 |
| 3 |
7.6 |
10.8 |
| 3-1/2 |
9.2 |
13.5 |
| 4 |
10.9 |
16.4 |
| 5 |
14.8 |
23.5 |
| 6 |
19.2 |
31.7 |
| 8 |
28.6 |
50.8 |
| 10 |
40.5 |
74.6 |
Material Composition Roofing
| Felt, 3 ply |
1.5psf |
| Felt, 5 ply |
2.5psf |
Rigid Insulation
| Temlock, 1" thick |
1.2psf |
| Cord, 1" thick |
0.7psf |
| Gold Bond, 1" thick |
1.5psf |
| Styrofoam, 1" thick |
0.2psf |
| Foam Glass, 1" thick |
0.8psf |
| Rigid Fiberglass, 1" thick |
1.5psf |
Roll or Batt Insulation
| Rock Wool, 1" thick |
0.2psf |
| Glass Wool, 1" thick |
0.06psf |
| ALPOL |
0.1psf |
NOTE: Weight of wood and wood
products will vary as the moisture content varies and as density of grain
varies. Local codes should be consulted for live load requirements. Weight
of manufactured products should be verified with manufacturer.
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