<p> ARCH 132 2011 Oregon Residential Specialty Code Class/Homework Assignment Chapter 5 Floors Name: ______Date: ______</p><p>A wood floor meets fire protection requirement if a minimum ______thick sheathing is used. R ______</p><p>Blocking in floor systems shall be a minimum of _____ inches thick. R ______</p><p>Floor Joists or beams shall have a minimum ______inches bearing on wood and____ inches on concrete R ______</p><p>Floor Joists from opposite sides that lap on a center bearing support must lap a minimum _____ inches and be nailed together with a minimum of _____ 10d nails. R ______</p><p>Ends of joists supported laterally by solid blocking must be full depth and ___ inches nominal thick. R ______</p><p>A (#2) 2 x 12 floor joist, douglas fir-larch, dead load 20 psf, @ 16" O/C spacing will span ____ Table R ______</p><p>List the features that determine the span distance for dimensional lumber floor joist ______Table R ______</p><p>The ratio of backspan for a cantilever floor joist supporting exterior light frame, bearing wall and roof shall be at least ratio of ______Table R ______Table R 502.5(1) Exterior Bearing Wall, Girder/Header Span tabulated values assume a # _____ grade lumber.</p><p>Bridging is required in floor Joist exceeding a nominal _____ x ______inches. These perpendicular lateral supports shall be placed at intervals not exceeding ______feet ______</p><p>Framed openings in floors may have a single header and trimmer the same size as the floor joists when the framed opening does not exceed___ feet. R ______</p><p>Notches in floor joist are not permitted in the center ______of the joist length. The depth of a floor joist notch shall not exceed the nominal width divided by ______. The width of the notch shall not exceed the end one third of the joist divided by _____. Figure R ______</p><p>Beams must be connected to posts by gusset either of the following materials 1. ______2. ______3. ______Figure R ______</p><p>The width of post to beam gussets must be equal to or greater than ______Figure R ______</p><p>The length of the gusset shall be at least ____ times the width or depth of the beam. Figure R ______</p><p>Beams that splice on posts shall have gussets on ______of the beam. Figure R ______</p><p>Posts 4' to less than 8' shall have gussets on ______plus a minimum ______diagonal brace placed at _____ degrees to the post and beam. Figure R ______</p><p>Holes may drilled in joist up to ______of the actual (nominal) depth. Figure R ______</p><p>5 The maximum O/C joist span for /8" plywood subfloor sheathing rated 40/20 is ______inches. Table R ______</p>