$$ DG $2013$ Assignment #$5$ Wood Estimating

Possible Marks: $4\%$ towards Final Mark

Handed Out: February $20$th$,2024$

Due: March Friday $15$th$,2024$

I have uploaded examples of worksheets for floor framing and wall framing

estimating.

I have uploaded a drawing of a small residence, that you will be using for this

assignment.

I have uploaded a excel worksheet for a template if you would like to use to build

from for this assignment.

You need to work through the two worksheets, and determine how much lumber,

sizes, etc. you will need to order for the floor $($sill plate to sub flooring$)$ and the

wall lumber up to the top plate.

And for the pricing, you will have to get pricing from one of the local stores

$($suppliers$),$ by either going, or looking on line. You will need to make an

additional column in the worksheets to note where you took the pricing from for

the lumber, etc.. and date.Wood Construction $$ Overview

$$ Purchasing Lumber

$$ Floor framing

$$ Wall Framing

$$ Ceiling Assembly

$$ Roof Assembly

Wood Construction

$$ Framing, sheathing, and subfloors

$$ Light frame construction uses dimensional

lumber

$$ In some cases, the D&S will call for the

use of engineered wood products

$2024-02-15$

$3$

Buying Lumber

Wood Estimating Order

$1.$ Foundation

Sills

$2.$ Floor Framing

$3.$ Wall Framing

$$ Exterior

$4.$ Wall Framing

$$ Interior

$5.$ Ceiling

Assembly

$6.$ Roof

Assembly

$2024-02-15$

$4$

Floor Framing

$$ First thing for a wood framing takeoff is

the floor framing

$$ Generally consists of wood beam, sills,

floor joists, joist headers and subflooring

$$ Check specifications regarding wood

grade and quality before estimating

quantity!

Floor

Framing $$

Wood

Beams

$$ If building width is grater than the span of

the floor joists, some sort of beam is

required:

$$ Built up wood beam or steel beams are

common for many types of construction

$2024-02-15$

$5$

Floor

Framing $$

Wood Beam

Wood Beam

Takeoff:

$$ From these

figures the inside

foundation wall

dimension and

beam length can

be determined.

Floor Framing $$ Wood Beam

Formulas to use:

$1.$ Inside Dimension $=$ Outside Dimension $$

Foundation Wall Thickness

$2.$ Beam Length $=$ Inside Dimension $+$

Bearing Distance

Beams consist of three $38$ x $235$

Therefore there is $44\mathrm{.}34$m of $38$ x $235$ lumber $(14\mathrm{.}78$m x $3)$

Next $$ Determine how many pieces of lumber are required for

the beam?

$2024-02-15$

$6$

Sills

$$ Sill plates are most commonly $38$ x $89$mm

and $38$ x $140$mm

$$ Run the parameter of the top of

foundation

$$ Not all framing will require a sill plate, so

confirm by reviewing details

Sill Length $=2($L$+$W$)$

PiecesLength $($mm$)$Size

$103,050(10)38$ x $140(2$x$6)$

$43,660(12)38$ x $140(2$x$6)$

Floor Framing $$ Wood Floor Joists

$$ Take off and separate into the various

sizes and lengths required

$$ Common spacing $400$mm o$.$c$.(16)$

$$ Common sizing:

$38$ x $89(2$x$4)$

$38$ x $140(2$x$6)$

$38$ x $184(2$x$8)$

$38$ x $235(2$x$10)$

$38$ x $286(2$x$12)$

$2024-02-15$

$7$

Floor Framing $$ Wood Floor Joists

Joist Estimating Steps:

$1.$ From the foundation plan and wall section,

determine the size of the floor joists

required

$2.$ Determine the number of the floor joists

required by first finding the number of

spaces, then adding one extra joist to

enclose the last space

$3.$ Multiply by the number of bays

$4.$ Add one extra for partitions that run parallel

to the joists

$5.$ Determine the required length of the floor

joists

Floor

Framing $$

Wood

Joists

$2024-02-15$

$8$

Floor Framing $$ Trimmers &

Headers

$$ Openings in the floor require additional

structure $$ READ Drawings!

Floor Framing $$ Joist Header

$$ Also referred to as

a $$Rim Board$$

$$ Runs along the

ends of the joist to

seal the exposed

edges

$$ Same size as the

joist

$$ Length required will

be $2$ times the

length of the

building

$2024-02-15$

$9$

Floor Framing

$-$ Bridging

$3$ main types of bridging:

$1.$ Cross bridging $($wood$)$

$2.$ Solid bridging $($wood$)$

$3.$ Metal bridging $($metal$)$

Floor Framing $-$ Sheathing

$$ Sheathing is most commonly plywood or

waferboard. Check specifications for type

and thickness as well as installation

techniques!

$$ Common size $1\mathrm{.}22$ x $2\mathrm{.}44$m $(4$x$8)$

$$ Most accurately estimated by doing a

sketch of the area to be covered and

planning the sheathing layout.

$2024-02-15$

$10$

Floor

Framing $-$

Sheathing

How to Calculate:

$$ Sheets of Plywood $=$ Area of Coverage

$2\mathrm{.}89$ m$2$ per sheet

Flooring Estimating Work Sheet

Estimating Worksheet Example

$2024-02-15$

$11$

Wall Framing

$$ The next several slides will review the

steps required to estimate exterior and

interior walls

$$ Exterior and interior walls are always

estimated separately

$$ Start with exterior

Wall Framing $$ Exterior Walls

Exterior Wall Estimating Steps:

$1.$ Plates are required around the perimeter of

the building. At times the plate material

can be pressure treated, therefore do not

mix items so you have an accurate

estimate.

$2.$ Total length of exterior plates is determined

by multiplying the length of wall times the

number of plates

$3.$ List information on the work up sheet, and

calculate the order quantities required.

$2024-02-15$

$12$

Wall Framing $$ Exterior Walls

Wall Framing $$ Exterior Walls

Top and Bottom Plates:

$$ Perimeter $=44$m

$$ Bottom Plates $38$ x $140$ Treated

Note: Interior plates are calculated with the interior walls in

the same basic procedure.

PiecesLength $($mm$)$Size

$10($Bottom Plate$)3,050(10)38$ x $140$ Treated

$4($Bottom Plate$)3\mathrm{.}660(12)38$ x $140$ Treated

$30($Double Top Plate$)3,050(10)38$ x $140$

$2024-02-15$

$13$

Wall Framing $$ Exterior Walls

Exterior Stud Construction:

$$ Separate into various sizes and lengths

required

Stud Estimating Steps:

$1.$ Review D&S for lumber information

$2.$ Studs are required around the perimeter of

building $($same calc. as still$)$

$3.$ Divide perimeter by spacing of the studs

then add $3$ extra studs per corner or

intersection

$4.$ Add extra studs $($as per code requirements$)$

for wall openings

Wall Framing $$

Exterior Walls

Exterior Wall Studs:

$$ Use $38$ x $140$ x $2,440(2$x$6$x$8)$

$$ Use the $44$m perimeter

$$ Use $0\mathrm{.}60$ for spacing

$2024-02-15$

$14$

Wall Framing $$ Exterior Walls

Corner Studs:

$1.$ Add $3$ studs per corner

$2.4$ corners of building

Wall Framing $$ Exterior Walls

Interior Walls Intersecting with Exterior:

$$ Using $38$ x $140$ studs for the exterior walls and

$38$ x $89$ studs for interior partition, the wall

intersection is made up of $3$ studs.

$9$ Interior Walls $(38$ x $89$ mm$)$ intersect with the

exterior $(38$ x $140$mm$)$

$2024-02-15$

$15$

Wall Framing

$$ Exterior

Walls

Wall Openings:

$$ Extra studs required at all openings

$$ Openings planned to fit into the framing

of the building, therefore it requires less

extra material.

Wall Framing $$ Exterior Walls

Wall Openings:

$$ # of openings x $3$ studs

per opening

$1$

$2-$

$3-$

$4-$

$5-$

$6-$

$2024-02-15$

$16$

Wall Framing $$ Exterior Walls

Wall Openings $$ Headers:

$$ Required to support the weight of the

building over the opening

$$ Refer to the D&S to confirm sizing of

headers per opening location.

$$ Openings over $1800$mm wide $=$ header

rests on $2$ studs per end

$$ Openings under $1800$mm wide $=$ header

rests on $1$ stud per end

Wall Framing $$ Exterior Walls

$2024-02-15$

$17$

Wall Framing $$ Exterior Walls

Wall Openings $$ Headers:

$$ List the number of openings, their width,

their number of headers, their length an

the total length required

PiecesHeader

Length

Size# of

Openings

$18990$mm$914$mm$9$

$2889$mm$813$mm$1$

PiecesLength $($mm$)$Size

$63,050(10)38$ x $235$

$12,440(8)38$ x $235$

Wall Framing $$ Exterior Walls

Wall Sheathing:

$$ May be fibreboard material, insulation

board, plywood, etc.

$$ Check the D&S to confirm materials

before estimating $($never assume$)$

$$ Understand your soffit construction before

you start estimating the sheathing

$$ Ignore openings for the sheathing

calculations unless the opening is large

enough where a full sheet of material will

not be used

$2024-02-15$

$18$

Wall Framing $$ Exterior Walls

Wall Sheathing:

$44$ m of exterior

wall

$2\mathrm{.}44$ m average

height

$$ Include any gable

ends

$2024-02-15$

$19$

Wall Framing $$ Interior Walls

$$ Review D&S to confirm information required

to complete the estimate

$$ Stud spacing may be different than exterior

$$ Length of interior walls must be determined.

Take this information from the plan by:

$1.$ Using dimensions from the floor plan

$2.$ Scaling the lengths if required

$$ Divide your work sheet by the different size

walls required $($

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