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| SECTION 10: STEEL HOUSING, METAL BUILDING SCREWS |
| | PART LIST | APPLICATION INDEX | SELECTION GUIDE | FASTENING SCHEDULE RECOMMENDATIONS | STEEL HOUSING FASTENERS | POST FRAMING SCREWS | TERMS CONCERNING STEEL FRAMING | MISC | |
STEEL HOUSING FASTENING SCHEDULE RECOMMENDATIONS |
| WOOD & STEEL COMPARISONS | FLOOR FRAMING | WALL FRAMING | ROOF FRAMING | GYPSUM | SUBFLOOR | |
Comparative Framing Designs (Wood vs. Light-Gauge Steel) |
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| 1 Design Conditions: a. Framed Area, Spans, Supports and Bracing. b. Rafters Supporting Drywall Ceiling. c. Roof System Sloped at 4:12 |
2 Design Criteria: a. Live Load 20 Lb/Ft2 b. Dead Load: 18 Lb/Ft2 c. Limiting Deflection Live Load Only): 1/240 Clear-Span. |
Roof Framing Comparison |
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Wood |
Framing Item |
Light-Gauge Steel |
| #2 Kiln-Dried Spruce-Pine-Fir 2x10 @ 16" O.C., Notched to Bear on Ridge Beam, 2x12 Ridge Board over Beam, 16d Common Wire Nails. | Rafter Size/Spacing/Span Condition | 6", 18 Ga. Rafter at 24" O.C. Full-Length, Lapped at Ridge over Beam Support, #10 Self Drilling Screws. |
| Rafter Notched to Bear on Wall, Toe-Nailed with 8d Common Wire Nails or Attached by Manufactured Hurricane Ties. | Exterior Wall Attachment | Connection Clip with 3/4" #10 Self Drilling Screws. |
| 2x10 Sub-Fascia, 16d Common Wire
Nails; 1x12 Fascia, 8d Common Wire Nails. |
Rafter End Closure | 6", 18 Ga. Rim Track with 3/4" #10 Low Profile Head Screws to Web Stiffener and from Web Stiffener to Rafter, 1x8 Wood Fascia to Rim Track with 1-1/8" Screw-Shank Nails. |
| 8d Common Wire Nails, Toe-Nailed. | Rafter to Ridge Beam Attachment | Connection Clips, 5/8" #10 Low Profile Self Drilling Screws. |
| 1/2" CDX Plywood, 8d Common Wire Nails. | Roof Sheathing, and Attachment to Rafters | 1/2" CDX Plywood, 1" #8 or #10 Counter Sinking Head Self Drilling Screws. |
| The above data has been provided for comparative purposes only and must not be used for design. | ||
Recommended Fasteners in Floor Framing |
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Materials |
Fastener |
Frequency or Quantity |
| Joist to Girder | 1/2" #10 Self Drilling Low Profile | 1 @ Joist to Girder |
| Joist to Connection Clip | 1/2" #10 Self Drilling Low Profile | 3 to 4 @ Each clip |
| Bridging to Joist | 1/2" #10 Self Drilling Low Profile | 1 @ Each Joist |
| Joist to 2 x Wood End Stiffener | 1-1/4" #10 Self Drilling Low Profile | 1 @ Each Joist Web to Stiffener |
| End Stiffener to Joist | 3/4" #10 Self Drilling Low Profile | 3 to 4 @ Each Stiffener to Joist |
| End Stiffener to Wood Rim Joist | 8d Common Wire Nail | 2 @ Each End Stiffener to Rim Joist or 3 @ Each Joist |
| Steel Rim Joist to End Stiffener | 3/4" #10 Self Drilling Low Profile | 3 @ Each Joist |
| Steel Rim Track to End Stiffener | 3/4" #10 Self Drilling Low Profile | 3 @ Each Joist |
| Joist Hanger to Joist | 7/8" #10 Self Drilling Low Profile | 3 @ Each Support |
| Joist to Overlapping Joist | 3/4" #10 Self Drilling Low Profile | 1@ 24" O.C. & Max. 12" from Each End of Track |
| Wood Sole Plate (Wall) to Rim Joist & Track | 2-1/2" #10 or #12 Self Drilling Low Profile | 1@ 24" O.C. & Max. 12" from Each End of Track |
| Plate Track (Bottom) to Joist & Track | 1-15/16" #10 or #12 Self Drilling Low Profile | 1@ 24" O.C. & Max. 12" from each End of Track |
| Note: Low
Profile Head is used in lieu of Pan or Hex Washer Heads where least projection of fastener
is desired. The above data has been provided for comparative purposes only and must not be used for design. |
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Recommended Fasteners in Wall Framing (Load Bearing) |
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Materials |
Fastener |
Frequency or Quantity |
| Stud to Plate Track (Bottom) | 5/8" - 3/4" #8 or #10 Self Drilling Low Profile Head | 1 @ each Flange |
| Stud to Plate Track (Top) | 5/8" - 3/4" #8 or #10 Self Drilling Low Profile Head | 1 @ each Flange |
| Diagonal Bracing to Stud | 1/2" - 5/8" #8 or #10 Self Drilling Low Profile Head | 1 @ each Stud |
| Lateral Bracing to Stud | 1/2" - 5/8" #8 or #10 Self Drilling Low Profile Head | 1 @ each Stud per Strap or 3 @ Each Connection Clip with Cold Rolled Channel |
| Gusset to Stud | 1/2" - 5/8" #8 or #10 Self Drilling Low Profile Head | Quantity and Spacing as per Loading |
| Stud to Stud (Nested) | 1/2" - 5/8" #8 or #10 Self Drilling Low Profile Head | 1@ 24" O.C. through Flange |
| Stud to Stud (Back to Back) | 1/2" - 5/8" #8 or #10 Self Drilling Low Profile Head | 1@ 24" O.C. through Web |
| Stud to Stud (@ Wall Intersection) | 1/2" - 5/8" #8 or #10 Self Drilling Low Profile Head | 1@ 24" O.C. or 1 @ Each Blocking |
| Lintel to Stud | 1/2" - 5/8" #8 or #10 Self Drilling Low Profile Head | Requirement Varies with Different Loading |
Recommended Fasteners in Wall Framing (Non-Load Bearing / Drywall) |
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Materials |
Fastener |
Frequency or Quantity |
| Stud to Plate Track (Bottom) | 1/2" - 5/8" #8 or #10 Self Drilling Low Profile | 1 @ Each Flange |
| Stud to Plate Track (Top) | 1/2" #8 Self Drilling Low Profile | 1 @ Each Flange |
| Lateral Bracing to Stud | 1/2" #8 Self Drilling Low Profile | 2 @ Each Flange |
| Stud to Stud (Nested) | 1/2" #10 Self Drilling Low Profile | 1@ 24" O.C. |
| Stud to Stud (Back to Back) | 1/2" #10 Self Drilling Low Profile | 1@ 24" O.C. |
| Stud to Stud (@ Wall Intersection) | 1/2" #10 Self Drilling Low Profile | 1@ 24" O.C. or 1 @ each Blocking |
Recommended Fasteners in Roof Framing |
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Materials |
Fastener |
Frequency or Quantity |
| Ceiling Joist to Wood Top Plate | 1" - 1-1/8" #10 or #12 Self Piercing or Type 17 point | 1 @ Each Joist |
| Ceiling Joist to Top Plate Track | 5/8" - 3/4" #10 Self Drilling Pan Head | 1 @ Each Joist |
| Connection Clip to Top Plate Track | 1" - 1-1/8" #10 or #12 Self Piercing or Type 17 point | 4 @ Each Clip to Top Plate |
| Connection Clip to Top Plate Track | 5/8" - 3/4" #10 Self Drilling Pan Head | 4 @ Each Clip to Plate Track |
| Connection Clip to Ceiling Joist | 5/8" - 3/4" #10 Self Drilling Pan Head | Min. 3 @ Each Clip to Ceiling Joist and as per Loading |
| Connection Clip to Rafter | 5/8" - 3/4" #10 Self Drilling Pan Head | Min. 3 @ Each Clip to Rafter and as per Loading |
| Ceiling Joist to Parallel Rafter | 5/8" - 3/4" #10 Self Drilling Pan Head | Number Varies as per Loading |
| Ceiling Joist to Truss Web | 5/8" - 3/4" #10 Self Drilling Pan Head | Min. 2 @ Flange and as per Loading Joist |
| Ceiling Joist, Overlapped at Support | 5/8" - 3/4" #10 Self Drilling Pan Head | Min. 2 @ Web |
| Connection Clip to Ridge Board | 5/8" - 3/4" #10 Self Drilling Pan Head | 4 - 6 @ Each Clip to Ridge |
| Rafters Overlapped at Ridge | 5/8" - 3/4" #10 Self Drilling Pan Head | Min. 6 @ Overlapped Web Section and as per Loading |
| Built up Beam (Ridge Board) | 5/8" - 3/4" #10 Self Drilling Pan Head | 1 @ Each Flange @ 12" O.C. |
| Stiff back Bracing to Joist | 5/8" - 3/4" #10 Self Drilling Pan Head | Min. 2 @ Each Joist |
| Sub-Fascia Track to Rafter | 5/8" - 3/4" #10 Self Drilling Low Profile Pan Head | 1 @ Each Connection Clip and Max. Top Plate |
| Wood Fascia to Sub-Fascia Track | 1-5/8" #6 Trim Head | 2 @ 24" O.C. and @ Max. of 12" from Each End of Board or Corner |
| Note: Low Profile Head is used in lieu of Pan or Hex Washer Heads where least projection of fastener is desired. The above data has been provided for comparative purposes only and must not be used for design. | ||
Recommended Fasteners in Application of Single Ply Gypsum Wall Board |
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Thickness of Gypsum Wallboard |
Plane of Framing Surface |
Long Dimension Gypsum Board in Relation to Direction of Framing Member |
Max. Spacing of Framing Member |
Screw1, 2 |
Maximum Spacing of Fasteners Screw Shank Nail |
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Type & Size |
Edge Field |
Type & Size |
Without Adhesive Edge Field |
With Adhesive Edge Field |
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| 3/8" - 3/4" | Horizontal Horizontal Vertical | Either Direction Perpendicular Either Direction | 16 24 24 | 1" D/W Self Drilling or Sharp Point | 6 12 6 12 6 12 | 1-1/8" Screw Shank Nail | 6 8 6 8 6 8 |
16 16 16 16 16 16 |
| 5/8" - 3/4" | Horizontal Horizontal Vertical | Either Direction Perpendicular Either Direction | 16 24 24 | 1"- 1-1/4" D/W Self Drilling or Sharp Point | 6 12 6 12 6 12 | 1-5/8" Screw Shank Nail | 6 8 6 8 6 8 |
16 16 16 16 16 16 |
| Gypsum
wall board (single ply). Notes: 1. Gypsum Board to 20 ga. & 25 ga. should use a MARKERŪ BRAND sharp point drywall screw. 2. Gypsum Board to two (2) thicknesses of 20 ga. or up to 14 ga. should use a DARTSŪ BRAND self-drilling drywall screw. The above data has been provided for comparative purposes only and must not be used for design. |
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| Recommended Fasteners in Application of Single Ply Plywood for Combination Subfloor - Underlayment to Framing | ||||||||
| Thickness of Plywood Wallboard | Plane of Framing Surface | Long Dimension Plywood Board in Relation to Direction of Framing Member | Max. Spacing of Framing Member | Screw1, 2 | Maximum Spacing of Fasteners Screw Shank Nail | |||
| Type & Size | Edge Field | Type & Size | Without Adhesive Edge Field | With Adhesive Edge Field | ||||
| 1/2" & Less | Horizontal Horizontal Vertical | Either Direction Perpendicular Either Direction | 16 24 24 |
1-1/4" - 1-7/16" #10 Self Drilling Wafer Head | 6 12 6 12 6 12 |
1-1/8" Screw Shank Nail | 6 12 6 12 6 12 |
6 12 6 12 6 12 |
| 5/8" & 3/4" | Horizontal Horizontal Vertical | Either Direction Perpendicular Either Direction | 16 24 24 |
2" #8 Pilot Self Drilling or 1-7/16" #10 Winged Self Drilling | 6 12 6 12 6 12 |
1-5/8" Screw Shank Nail | 6 12 6 12 6 12 |
6 12 6 12 6 12 |
| 7/8" - 1" | Horizontal Horizontal Vertical | Either Direction Perpendicular Either Direction | 16 24 24 |
1-5/8" #10 Flat Winged Self Drilling or 2-1/2" #12 Flat Pilot Self Drilling | 6 12 6 12 6 12 |
1-7/8" Screw Shank Nail | 6 12 6 12 6 12 |
6 12 6 12 6 12 |
| 1- 1/8" | Horizontal Horizontal Vertical | Either Direction Perpendicular Either Direction | 16 24 24 |
2-1/2" #10 or #12 Pilot Self Drilling | 6 12 6 12 6 12 |
2-1/4" Screw Shank Nail | 6 12 6 12 6 12 |
6 12 6 12 6 12 |
| 1-1/4" - 1-5/8" | Horizontal Horizontal Vertical | Either Direction Perpendicular Either Direction | 16 24 24 |
2-3/4" #14 Flat Winged Self Drilling | 6 12 6 12 6 12 |
2-1/4" Screw Shank Nail | 6 12 6 12 6 12 |
6 12 6 12 6 12 |
Plywood or O.B.S. Sheathing (single ply). 2. Winged screws are not recommended in 20 ga. or less (see MARKERŪ Section). The above data has been provided for comparative purposes only and must not be used for design. |
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Recommended Fasteners in Application of Single Ply Plywood for Combination Subfloor - Underlayment to Framing |
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| Thickness of Plywood Subfloor | Plane of Framing Surface | Long Dimension Plywood Subfloor in Relation to Direction of Framing Member | Max. Spacing of Framing Member | Screw1, 2 | Maximum Spacing of Fasteners Screw Shank Nail | |||
| Type & Size | Edge Field | Type & Size | Without Adhesive Edge Field | With Adhesive Edge Field | ||||
| 5/8" - 3/4" | Horizontal Horizontal Vertical | Either Direction Perpendicular Either Direction | 16 24 24 |
2" #8 Pilot Self Drilling or 1-7/16" #10 Winged Self Drilling | 6 12 6 12 6 12 |
1-5/8" Screw Shank Nail | 6 12 6 12 6 12 |
6 12 6 12 6 12 |
| 7/8" - 1" | Horizontal Horizontal Vertical | Either Direction Perpendicular Either Direction | 16 24 24 |
1-5/8" #10 Flat Winged Self Drilling or 2-1/2" #12 Flat Pilot Self Drilling | 6 12 6 12 6 12 |
1-7/8" Screw Shank Nail | 6 12 6 12 6 12 |
6 12 6 12 6 12 |
| 1-1/8” - 1-1/4" | Horizontal Horizontal Vertical | Either Direction Perpendicular Either Direction | 16 24 24 |
2-1/2" #10 or #12 Pilot Self Drilling | 6 12 6 12 6 12 |
2-1/4" Screw Shank Nail | 6 12 6 12 6 12 |
6 12 6 12 6 12 |
| 1-1/4" - 1-5/8" | Horizontal Horizontal Vertical | Either Direction Perpendicular Either Direction | 16 24 24 |
2-3/4" #14 Flat Winged Self Drilling | 6 12 6 12 6 12 |
2-1/4" Screw Shank Nail | 6 12 6 12 6 12 |
6 12 6 12 6 12 |
| Notes: 1. If
nails are used in lieu of screws, use of adhesive is strongly recommended. 2. Winged screws are not recommended in 20 ga. or less (see MARKERŪ Section). The above data has been provided for comparative purposes only and must not be used for design. |
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Copyright 2001, Compass International, Inc. |