Chapter 4 - STAIR BODY - WM Coffman

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TREAD CAPRISER CAPMITERED RETURN TREAD CAPBULLNOSE STARTING END CAPTREAD AND RISER CAPS4-57Coffman tread and riser caps, including bullnose starting end caps, can be used as an economicalternative to full treads and risers when using a carpet runner in the center of the stair.PHOTO 4-57.Carpet-grade subtreads and subrisers will first have to be installed on the rough carriages.Subtreads should be nosed on the front to allow the carpet to roll over the front edge of thetread and ripped to a depth that will allow an approximate 1" overhang. Notches should becut into the overhang to match the width of the caps. PHOTO 4-58.Install subtread using construction adhesive and screws. You are now ready to install thetread and riser caps.SUBTREADNOSEDSUBRISERNOTCHED FOR CAP4-5818 CHAPTER 4 - STAIR BODYC O F F M A N S T A I R P A R T S • S I N C E 1 8 7 4
MITERED JOINTINSTALLING TREADAND RISER CAPSBeginning at the bottom ofthe stair install all riser capsusing construction adhesiveand nails. As with full risers(See Chapter 4, Page 8), openside riser caps should bemitered into the skirtboardor decorative tread bracket.PHOTO 4-59.TREAD CAPTrim the closed side treadcap to fit the skirtboard, cutto the proper depth, andpermanently install withconstruction adhesive andnails. PHOTO 4-60.4-59 4-60For reversible tread caps,use a table saw to make thenecessary cuts and finishcuts with a handsaw orjigsaw PHOTO 4-61.4-624-61For nonreversible treadcaps, trim to length to themitered return portion ofthe cap and cut a 45° angleat the riser/skirtboard jointwith a sliding miter saw. Asmall mitered block canthen be cut to fit from thewaste return nosing, glued,and finish nailed into place.PHOTO 4-62.C O F F M A N S T A I R P A R T S • S I N C E 1 8 7 4 CHAPTER 4 - STAIR BODY 19
Page 1 and 2: CHAPTER 4Stair BodyLANDING TREADSHO
Page 3 and 4: WALL CUT MEASUREMENTMeasure the dis
Page 5 and 6: LAST RUNBOTTOM OF OPEN SIDESKIRTBOA
Page 7 and 8: NOTE NECESSARY ADJUSTMENTSMARK WALL
Page 9 and 10: FINISHED STRINGER LOWERTHAN ROUGH C
Page 11 and 12: OVERCUT ANGLES4-294-304-31RISERSWit
Page 13 and 14: DOWEL BOTTOMSTARTING NEWEL4-38When
Page 15 and 16: NAIL OR SCREWTREADNAILINGJIG4-45 4-
Page 17: C-8590 LANDING TREADDECORATIVE BAND

Chapter 4 - STAIR BODY - WM Coffman

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