Chapter 23 Design Requirements Flashcards
Sawn lumber is…
Regular Wood
Sawn lumber complies with..
DOC PO 20 or equivalent
Sawn lumber inspection required if thickness is..
larger than 3 inches
Structural Glue-laminated timber complies with…
ANSI/APA 190.1 and ASTM D3737
Wood structural panels comply with
DOC PS 1, DOC PS 2, or ANSI/APA PRP 210
Wood structural panels where permanently exposed to outdoor shall be made of..
exterior type (if underside of roof sheathing its Exposure type 1)
Fiberboards complies with
ASTM C208
Hardboards comply with
ANSI A135.6
Hardboard underlayment strength requirements..
7/32 inch - 1/4 inch service class hardboard planned
or sanded on one side no less than .2 inches
Moisture content of lumber shall be
19 % or less
Particleboard shall comply with
ANSI A208.1
Particleboard floor underlayment shall be no less than..
1/4 inch thick
Preservative-treated wood shall comply with..
AWPA UI and M4
Fire retardant treated wood shall comply with…
ASTM E84 or UL723
Fire retardant treated wood fire test shall..
be 20 mins and shall not go more than 10 1/2 feet beyond centerline
Moisture Content in Wood structural panels
15% or less
Fire retardant treated wood when exposed to weather shall be identified as…
Exterior
Truss Design Drawing Requirements..
Section 2303.4
Truss members shall not be..
cut, drill, notched, or spliced unless approved by design professional
Nails used for framing and sheathing shall have minimum average bending yield strengths of…
- 80 kips per square inch for shank diameter
of .177 inch - .254 inch - 90 kips per square inch for shank diameter
of .142 inch - .177 inch - 100 kips per square inch for shank diameter
of .099 inch - .142 inch
Studs shall have a full bearing on a…
1 1/2 inch or larger plate or sill shall have no less than equal to stud
Combustible fibers shall be around flues and chimneys no less than..
2 inches
Combustible fiber away from flue openings shall be atleast
6 inches
Sheathing nails or other approved sheathing connectors shall be…
driven so that their head or crown is flush with surface