1. 1 WALL FRAMING

2. 2 Interior & exterior walls l basic wall components –bottom plate –studs –top plates –headers –bracing –sheathing –finishing materials

3. 3 Plates l most common assembly consist of one bottom plate and two top plates for wood framing l refer to wall sections for sizes l refer to specifications for grade of lumber used

4. 4 Plate takeoff l plates are required for exterior walls and interior walls l NOTE: exterior and interior walls may be different is size therefor perform takeoff separately l multiply the total linear feet of wall by the number of plates required in the wall sections l length’ of walls * number of plates l NOTE: do not deduct for openings

5. 5 WOOD STUDS l studs, like plates should be taken off separately based on sizes required l Studs are most commonly 2” X 4” @ 16” O/C or 2” X 6” @ 16” O/C

6. 6 WOOD STUD TAKEOFF l review specifications and drawings for spacing and lumber grade l FORMULA # studs = roundup (length’ of wall / 1.33) or # studs = roundup (length’ of wall * 0.75) –1.33 and 0.75 is for 16” o/c studs NOTE: do not deduct for openings

7. 7 WOOD STUD TAKEOFF l after number of studs are calculated add the following –for every corner or end add 1 stud –for every intersection add 2 studs –for every opening add 2 studs

8. 8 WOOD HEADERS l headers are required to support the weight of the building over openings l check the specs. and drawings to determine if headers are built-up wood, engineered or cripples

9. 9 WOOD HEADERS l a built-up header is made up of 2 pieces of lumber usually 2” x 4”, 6”, 8”, 10” or 12” l header length must also be considered l usually the header must extend over the top of one stud on either side of the opening ( jack stud )

10. 10 Exterior sheathing l most common materials are –plywood sheathing –OSB sheathing –rigid insulation l exterior sheathing is taken off in square feet l check wall sections to exact area of wall to be covered l height’ of area covered by sheathing X length’ of wall –do not subtract for openings

11. 11 Air barrier l air barrier is used to allow moisture to escape from the inside but prevent wind from entering l common type is TYVEX l taken off in square feet but ordered by the roll l check wall sections to exact area of wall to be covered l do not subtract for openings

12. 12 Insulation l common types used are: –batt insulation –rigid insulation –blown-in l batt insulation is friction fit between the studs

13. 13 Insulation l insulation is made in different thickness to meet the building code R-value requirements l different locations in a home require different R-values

14. 14 Insulation l insulation is taken off in square feet but ordered in bundles l check specifications and interior walls for sound insulation l do not subtract for openings smaller then 50 sf l thickness and framing spacing must be taken into consideration

15. 15 Vapour barrier l vapour barrier must be placed on the warm side of the structure usually between interior face of stud and drywall l check wall sections for all locations l taken off in square feet but ordered in rolls l do not subtract for any openings l all joints should be taped or caulked

16. 16 REMEMBER l -TEST NEXT WEEK