Thank you for purchasing our kit. Please read the following information before beginning construction.
Always check with your local HOA or building code office for any requirements or restrictions.
Floor:
Wood flooring is sold optionally. You may choose to build your own or pour a cement pad.
Always wear safety glasses when cutting or nailing!
Tools Required: Hand or Circular Saw
Cordless Drill
Hammer
Pencil
Additional Materials - Not included in kit:
Windows are purchased separately
Required:
Optional:
Terminology:
Square - Confirm corners are at 90 degrees
Plumb - Confirm walls and trusses are straight vertically
Wall Plate - Top and bottom 2x4s used to frame walls
Tie Plate - 2x4s connecting wall sections together
Header - Spans top of door opening
OSB - Oriented Strand Board
LAP - Edge of siding that overlaps Tongue
Tongue - Edge of siding that is overlapped
Shingles or metal roofing, Drip Edge, Roofing Nails or Screws, Paint
Caulk, Ridge Vent
Unpack all items & organize according to size and type. This will make items easier to find
when instructed.
Review the parts list on the back page. Should there be missing items or sub-par material
contact Best Barns Customer Service.
DO NOT discard any material including the pallet until your project is complete.
Assembly:
Review all instructions before you begin. Please follow steps carefully and in sequence for
successful results.
If you have any questions we are happy to assist you. Please contact us at:
800-245-1577 - Mon - Fri 8AM - 5PM EST
724-866-4357 - After hours and weekends
Email - questions@barnkits.com
Constructing Details for Optional Floor System
Foundation size is 12'-0" x 20'-0". Check local building codes in your area, the construction may
have to change. For a concrete slab, install sill sealer as a moisture barrier between the concrete
and the wall plates. Foam sill sealer can be purchased at home centers in rolls 3-1/2" or wider.
1.Stagger the 4x4 timbers as shown below. Cut (2) two 2x4- 8' boards into 2' long blocks
to secure the 4x4s where they butt together.
2.Cut (2) two 2x4-8' to a length of 8' -0". They
will be used for the joist headers. Layout, from
left, for 16" on center joist spacing. 'X' marks
where floor joist will be placed.
15-1/4"
X
X
3.Cut (17) seventeen 2x4-12' treated boards to 11' -9". These will be the floor joists. Treated
lumber may be thicker than 1-1/2". Take this into account when cutting the length of floor
joists. Shorten joist measurements if necessary to obtain 12'-0" building width.
4.Install the floor joists cut above between the 8' joist headers. Secure with 16d galv. deck nails.
5.Place floor assembly over the 4x4s. Square floor assembly. Measure the floor diagonally
(corner to corner) and then the opposite corners; these measurements will be the same when
the floor is square. Toenail frame (headers & joists) to the 4x4 runners.
16"
X
X
16"
X
X
X
X
X
X
4x8 Flooring
Front Floor Section
4x4-8' Treated
Runner
:
:
Assembly Instructions for
Rear Floor Section
6.Cut (2) two 2x4-12' to a length of 12' -0". Layout
for 16" joist spacing, See above.
7.Install floor joists between the joist headers. Square
the floor section and install against the section
assembled above. Toenail to the 4x4s runners.
8.Install 4x8 flooring over the 2x4s. Use 8d galv.
Do not discard any material until construction is complete, including short 2x4 blocks.
1.Cut (2) two 2x4-10' boards to a length of 116-1/2". Position the boards together and indicate
with 'X' marks where the wall studs will be located.
2.Mark a 'C' anywhere left of first stud mark. This is referenced in a later step.
116-1/2" Wall Plates
Top Wall Plate
Bottom Plate
Stud Spacing
X
X
C
19-3/4"
X
X
24"
3.Install (6) six pre-cut wall studs between the top & bottom plates with (2) two 10d sinkers on
each end.
The length of pre-cut studs will vary from 92-1/4" to 93"
depending on you locality.
C
X
X
X
X
24"
Pre-Cut
Wall Studs
116-1/2" Wall Plate
3.Repeat to assemble (3) three more 116-1/2" long wall frames.
4.Set frames aside.
Step 2Assemble Door Header
1.Locate (2) two 2x8-8' boards. Cut these boards
to a length of 75".
2.Assemble the door header using 2x8 boards
and (2) two 7-1/4" x 48" OSB filler included
in our kit. Apply wood glue to both sides of
OSB and install (1) one filler to one end. Cut
to fit second OSB filler. Nail together with (12)
twelve 10d sinkers spaced evenly on each side.
75" Long 2x8
:
:
:
:
:
:
48" OSB Filler
Cut OSB to fit
Step 3Assemble 12' Back Wall
1.Cut (2) two 2x4-12' to a length of 144". Position the boards together and indicate with 'X'
marks where the wall studs will be located.
144" Wall Plate
Top Wall Plate
Bottom Plate
Stud Spacing
144" Wall Plate
X
X
23-1/4"
X
X
24"
X
X
X
X
24"
Pre-Cut Wall Studs
144" Bottom Plate
2.Install (7) seven pre-cut wall studs between the top & bottom plates. Nail top and bottom plates
to studs using 10d sinkers.
3.Square wall frame. Measure the wall diagonally (corner to corner). Then measure the opposite
corners. These measurements will be the same if the wall is square.
4.Install the first siding panel with the 'LAP' edge flush with the side of the wall stud and flush
with the top 2x4 plate. Nail siding with 6d galv. nails, spaced 8" apart. Cut the siding flush
with the 2x4 bottom plate if you are installing the building on a concrete slab.
5.Install (2) two more siding panels. Cut the last panel flush with the end of the frame.
Depending on length of pre-cut studs siding
may extend below bottom plate.
Flush to Top
LAP
Edge
Siding Flush
Step 4Assemble Front Wall Frame
1.Cut (2) two 2x4-12' boards to a length of 144" for wall plates. Position the boards together and
indicate with 'X' Marks where the wall studs will be located.
Install these Studs Centered
X
X
X
X
33"
X
X
X
X
2.Install (6) six pre-cut wall studs between the wall plates where shown.
X
X
33"
X
X
3.Remove (2) two 2x4s screwed
2x4 Blocks
to the pallet. Cut both to a
length of 78-1/2" and install
nail
2x8 Door Header
nail
as header supports where
shown. Nail to studs with 10d
sinkers.
4.Install the door header on the
2x4 header supports. Nail to
the stud with 10d sinkers.
78-1/2" Header Support
5.Measure space between header
and top plate. Cut (4) four
pieces to this length from a
pre-cut stud. Equally space the
(2) center blocks. Nail through
top plate and toenail to header.
72" Between Header Supports
Use 10d sinkers.
6.Install a full width siding panel with the 'LAP' edge flush with left side of wall frame and with
top plate. Before installing siding, cut the siding flush with the side of the door opening and
the bottom of header.
7.Install a 20"x48" siding panel above the door opening flush with top plate. Cut siding flush
with the bottom of the door header.
8.Install a full width siding panel on the right side of
the wall panel. Cut siding as previously instructed.
Flush
'LAP' Edge Flush
Cut Siding Flush
Step 5Set Wall Panels
1.Erect back wall and side walls. IMPORTANT: Install the side walls with the 'C' marks oriented
against the back and front wall panels. Secure walls together at the corners. Use (4) four 10d
sinkers per corner. Brace side walls with pre-cut wall studs to hold walls secure and plumb.
2.Starting at back corner install a full width siding panel with the 'LAP' edge flush with the siding
on back wall and flush with top plate. Nail siding to back wall and all 2x4s using 6d galv. nails
spaced 8" apart
3.Install (4) four more siding panels. Last panel will extend 3-1/2" past wall to receive front wall
panel.
4.Start at back wall and apply siding to opposite wall.
5.Erect front wall panel and secure corners with 10d sinkers. Nail siding to front wall.
6.Cut and remove bottom 2x4 from door opening.
7.Nail walls to floor through bottom plate. Space 10d sinker nails 24" apart.
End Marked 'C'
Back Wall
End Marked 'C'
EndMarked 'C'
Cut 2x4 Plate
from Opening
Step 6Assemble Roof Gables
1.Cut (2) two 2x4-12' boards to a length of 144".
2.Place one of the 144" boards on the floor along with (2) two 80-1/2" long 2x4 rafters as
shown below. Bottom 144" plate will be on edge. Rafters will lay flat.
There are short 2x4s, that may have an angle on one end, supplied in the
kit. Use these to hold the rafters and bottom gable plate together by
temporarily screwing the blocks to the floor using 2-1/2" screws. This will
ensure that the gable frames and the trusses are identical.
3.Secure the top of the rafters together with a 1"x4" barbed metal drive-on plate.
4.Install (2) two 23-1/2" gable studs with angle cut at one end. Nail through the bottom
plate with 10d sinkers and secure the top with barbed metal drive-on plates.
Barbed Metal Plate
80-1/2" long 2x4
Truss Rafter
2x4 Block
Bottom Gable Plate
23-1/2" Gable Stud
2x4 Block
5.Secure the 2x4 bottom plate to the truss rafter with a 2-1/2" wood screw on both ends.
Set gable aside.
6.Repeat steps to assemble another gable.
Step 7Assemble Roof Trusses
1.Place (2) two 80-1/2" long 2x4 truss rafters and a 82" long collar tie together as shown below.
The collar tie has an angle cut on both ends. Insure the collar tie ends are at equal distances
from truss top. Reposition the lower 2x4 blocks to hold the truss rafter and collar tie in place.
See 'Detail B'.
2.Secure the 2x4 truss rafters at the top with a 8" x 20" wood gusset. Apply wood glue between
the 2x4s and the gusset. Nail the gusset to the 2x4s with (14) fourteen 6d common nails,
3.Install (2) two 12"x24" gussets at ends of the collar tie. Glue and nail using 14
4.Turn this truss over and apply wood gussets to the opposite side.
5.Repeat to assemble (8) eight more trusses.
8"x20" Gusset
80-1/2" Truss Rafter
2x4-82" Collar Tie
Repositioned 2x4 Block
nails per gusset.
12"x24" Gusset
80-1/2" Truss Rafter
2x4 Block
6. Remove and save the short 2x4 blocks. They
will be used in a later step.
Detail 'B'
2x4 Block
2x4 Block
Step 8Install Primed Soffit and Fillers
1.Install a 7" wide x 48-3/4" siding panel over the side wall with the primed side facing down.
The 'tongue' edge should be flush with
front wall plate, NOT over siding. Tack the soffit with
a couple 6d common nails. Installing 2x4 tie plates in a later step will provide more nailing.
2.Install (4) four more siding panels. Cut the last soffit flush with the 2x4 wall plate.
Flush with
Inside of 2x4
3-1/2" Filler
7" Soffit
Side
Wall
Front Wall
Door Opening
Tongue Edge
4.Repeat to install soffit on the opposite side wall.
Flush
5.Install (3) three 3-1/2" wide x 48-3/4" filler panels over the front and back wall.
Cut the last filler to fit between the soffit on the sidewalls.
Step 9Install Roof Gables
1.Install a gable frame centered on the back wall. Gable plate should be
flush with filler. NOT over siding. Secure with 10d sinkers.
2.Install the gable frame on the front wall.
'Z' Flashing
3.Install (3) three 4' long 'Z' Flashing on the lower
siding panels. Overlap flashing by 1/2" where they
meet. The ends will be covered by trim. Hold in place
with a few 6d galv. nails.
4.Install (2) two pieces of 72" long 'Z' Flashing over
the lower siding panels on the front wall.
Step 10Install Siding on Gables
1.Locate pre-cut gable siding. Working left to right install a siding panel with a 'tongue' edge
along right side. Install flush with end of frame and top of gable frame. When properly set
the bottom edge will have a slight gap between 'Z' flashing. Use 6dgalv. nails spaced 8" apart.
2.Install center gable siding and right siding.
3.Repeat to install siding on
the other gable frame.
LAP Edge
Flush
Slight Gap
Tongue Edge
Step 11Install 2x4 Tie Plates on Side Walls
1.Install a 2x4-8' on a side wall against the gable on the back wall and flush with the inside of
soffit. Cut a 2x4x12 to fit against gable on front wall. Use 10d sinkers.
2.Repeat to install tie plates on the
opposite side wall.
1.Starting on back corner measure from the backside of the 2x4 gable frame when marking
the location of the first truss. Continue 24" spacing to other gable. Important: When marking
the opposite wall, place the 'X' mark on the same side of the line so your trusses are parallel
when they are installed.
2.Install metal hangers to the tie plate with 1-1/2" hanger nails. The opening should line up
with the 'X' mark, the bottom of the opening, flush with the 2x4 tie plate. Detail 'D'.
Measure from
Backside of 2x4
Detail 'D'
2x4 Tie Plate
Inside of Building
20-5/8"
24"
3.Set roof trusses. Secure trusses to metal hangers with 1-1/2" hanger nails.
2x4 Block
4.Gather (18) eighteen short 2x4
blocks and install one at both ends
of each truss. Secure 2x4 blocks
to the soffit panel using (2) two
1-1/2" long exterior screws.
5.Gather (4) four more 2x4 blocks.
Install one 2x4 block at each end
of the soffit, flush with the 2x4
gable frame.
2x4 Block with
Gable Frame
Step 13Install Rear Gable Trim
Do not install gable trim on
front in this step.
1Install (4) four small primed siding
fillers, packed with the hardware, over
the 2x4 soffit blocks. Siding fillers will
be flush with the gable siding. Use 6d
galv. nails.
Siding Filler
2.Install (4) four 96" long 1x3 trim boards
at corners of side wall. Trim should be
flush with the siding on the front and
Back
Wall
Side
Wall
back walls. Use 6d galv. nails.
96" Long 1x3 Corner Trim
3.Install a 8-1/2" long trim board, called a keystone, at the top of the gable flush with the top
of the gable frame. Use 6d galv. nails.
4.Gather (2) two 82-1/2" long 1x4 trim boards. Butt each board against the keystone and flush
with the top of the gable frame. Use 6d galv. nails.
Keystone
82-1/2" Long 1x4 Trim
5.Install (2) two 99" long 1x4 trim
boards flush with the 1x3 corner trim
on the side wall. Use 6d galv. nails.
6.Install corner trim on the opposite
back wall corner.
99" Long 1x4 Trim
Step 14Install Fascia on Side Walls
1.Install a 1x4-6' white pine fascia board against the rear gable trim. Install the fascia so the
bottom edge of the roof sheathing will rest on the edge of the 1x4. See Detail 'E'. Use a straight
edge to align the 1x4 board with the top of the trusses. Use 6d galv. nails.
2.Install (2) two more 6' fascia board. Do not install the last fascia board. This will be applied
after the front overhang is installed.
3.Repeat on opposite side wall.
Roof Sheathing
2x4 Truss
1x4 Fascia
2x4 Tie Plate
2x4 Soffit Block
Detail 'E'
1x4 -6' Fascia Board
Step 15A Install Roof Sheathing
1.Install (4) four 42-3/8" long 2x3 boards on the
front gable flush with the top of the gable frame.
Use 10d sinkers
2.Plumb each truss and gables.
3.Refer to sheathing layout at the top of the next
page. Install roof sheathing starting at the front
gables lower corner. The roof sheathing should
extend 6-1/4" beyond the 2x3s. Continue to back
wall. Use 6d common spaced 12" apart. The top
row of roof sheathing will be about 1" below
the ridge to allow for optional ventilation.
Straight Edge
Nail Fascia to
2x4 Block
6-1/4"
42-3/8" Long 2x3
Shingles
Truss
Front Gable
Air
Space
Step 15B Install Roof Sheathing continued
Sheets should meet at center of trusses when installed
4.From 4x8 sheets of OSB cut to the sizes indicated with an * below. Repeat for opposite side.
48" x 72"
1x4-6'
36-1/2" x 96"
1x4-6'
36-1/2" x48"
48" x 96"
1x4-6'
36-1/2" x 72"
48" x 81-1/4"
36-1/2" x
33-1/4"
5.Trim off any sheathing that extends over the rear gable trim.
Step 16Install Front Soffit
1.Gather (2) two 7" wide soffit panels. Install first panel flush with lower end of 2x3 and against
siding. Install with 1-1/2" exterior screws . Cut upper panel to fit.
2.Install (2) two 42-3/8" long 2x3s between the roof sheathing and the 7" soffit panels. Install
with 1-1/2" exterior screws on soffit and 6d common through roof sheathing. Set these boards
flush with soffit panels. The roof sheathing will extend 3/4" past the 2x3s to allow for trim.
42-3/8" Long 2x3
3.Repeat on other side.
Upper Roof Sheathing
Front Gable
7" Wide Soffit Panels
Nail with
6d Common
42-3/8" Long 2x3
Sheathing Projects 3/4"
Step 17Install Door Flashing
3-1/2"x5"
Flashing
1.Locate in the pocket door box (2) two 3-1/2"
2.Install the galv. door sill over flashing in the
Galv. Sill
Step 18Install Gable
& Door Trim
1.Install a keystone and gable trim
under the roof sheathing as done
in Step 13.
2.Install a 3-7/8" x 72" primed
jamb material on the top of the
door opening, flush with the front
wall siding. Use 6d galv. nails.
x 5" metal flashing and bend along width to
90 degrees. Install at each corner of the door
opening. These will be covered in the next
steps.
center of the door opening.
Use 1-1/4" pan head screws along the front
edge.
82-1/2” Long
1x4 Gable Trim
3.Locate (2) two 3-7/8" x 79-5/8" primed jamb
material and install on the sides of the door
opening, flush with the front wall siding.
4.Measure from top of door opening to bottom
of siding. Cut (2) two 80-3/4" long 1x4s to this
length and install flush with door jamb and top
of door opening.
5.Install an 81-3/4" long 1x4 trim board, this board has angle cuts on both ends,
centered across the top of the door opening.
6.Install 99" long 1x4 trim boards flush with the 1x3 corner trim on the side walls.
Use 6d galv. nails.
Step 19Finish Side Wall Trim
1.Locate (2) two 1x4-4' trim boards. Cut each
to fit against back of front gable trim and
install on the side walls.
1x4 Fascia
1x4 Gable Trim
Step 20Install Pocket Doors Track
1.Install a 68-1/2" long Track Support Assembly 82-3/4" from the floor. Important: measure
from the bottom of the 2x3 on the support assembly to the floor. Insure the notched end of
track is center of door opening. Use 2-1/2" screws.
2x3 Track Support Assembly
2x8 Door Header
Notch
View From Inside
2.Install the other track support assembly.
View From Inside
Screw Used
as Spacer
Treated Sill
Board
Notch in Sill
82-3/4"
to Floor
Galv. Sill
5.Install the treated door sill behind the door
opening. There needs to be a space between the
treated sill and the inside wall. To position the
sill, insert a 2-1/2" screw between the treated
sill and the inside wall as a spacer. Screw the
sill to the floor with (6) six 2-1/2" long screws.
Remove the screw used as a spacer.
Building Tip; run a bead of caulking where
!
flashing, treated sill and aluminum sill
meet to prevent moisture from penetrating.
Step 21AInstall Doors
1.Select the door with the siding and trim board extending past the 2x4 frame, see detail below.
Standing on the inside of building slide the rollers on the left side track as shown below.
If it is necessary to adjust the door height one or both door carriers can be adjusted. Loosen
screws that secure carrier(s) to the door. Adjust door so the aluminum angle, on the bottom
of the door, does not rub on the treated threshold. Tighten the screws.
Tip: Inserting a screw, shown below, will prevent the doors from falling through the opening
between the track, if the door is opened too far.
Door Track
IMPORTANT:
DO NOT install both track rollers in the space between the Track Legs.
Install the track rollers on either side of the inside track leg.
See detail below.
Install track rollers on this track leg.
End View
Space
Between
Legs
Track Leg
2x4 Frame
View From Inside
Screw Stop
Adjustment Screws
First DoorTrim & Siding
Extends Past Siding
Step 21BInstall Doors continued
2.Hang the other door. On this door, install a sliding
door latch, on the lower back of the door to secure
this door in place when closed. You will need to drill
a hole in the floor for the round shaft to drop into.
3.Install a metal plate to the bottom of the right door.
The angle end will hold the bottom in-line with the
left door when closed.
4.Install the door handles and locking door hasp on the
outside of the doors. When installed properly the hasp
will fold in half to receive locking latch and screw
heads will be covered.
Sliding Bolt on the
back of left door
Step 22Install Roofing — Not Supplied in Kit
1.Install metal roof edging along the end walls and the front edge of the roof sheathing.
2.Install felt paper and shingles according
to manufacture's instructions.
Metal Roof Edge
Optional Roof Covering
12 bdl. Roof Shingles
9pcs. Roof 'drip' Edge-10'
Material List for Wood Pocket Doors
236" x 79" Wood Doors w/ Primed Siding
2Boards w/ Alum. Track Attached
1Treated Wood Threshold
1Galvanized Door Sill
1Door Trim1x481-3/4"
2Door Trim1x480"
1Door Jamb3-7/8" x 72"
2Door Jamb3-7/8" x 79 - 5/8"
Roof Sheathing
1x4 Trim
4Track Rollers with Brackets
1Swivel Door Latch
2Door Handles
1Sliding Latch
1Flat Steel Bar Door Guide
23" x 5" Galv Flashing
41-1/4" Pan Head Screws for Door Sill
162-1/2" Wood Screws / square bit
North Dakota 12x20 Material List
72x4 for Collar Ties82"
182x4 for Truss Rafters80-1/2"
42x4 for Gable Studs23-1/2"
182x4 for Soffit Blocks 5" or longer
61x4 for Sidewall Fascia72"
41x4 for Gable Trim82-1/2"
82x3 for Gable Overhang42-3/8"
18Truss Gussets7/16"10" x 24"
36Truss Gussets7/16"12" x 24"
1eaSiding Panels20" x 48-3/4"
2eaGable Siding 48" x 40" angle cut
4eaGable Siding 48" x 28" angle cut
14eaSoffit Panels48" x 7"
6eaSoffit Fillers48" x 3-1/2"
4eaSiding Fillers2" x 3-1/2"
4lbs.10d Sinkers
5lbs.6d Galv.
7lbs.6d Common
2lbs.Hanger Nails
100 ea.1-1/2"Exterior Screws
25 ea.2-1/2"Deck Screws
6ea.1"x4"Metal Plates
2ea.72"'Z' Flashing
3ea.48"'Z' Flashing
14 ea. H1 Metal Truss Hangers
2ea.Bottle Glue
2ea.1x6 Keystone8-1/2"
2ea. Sheathing 7/16"48" x 81-1/4"
2ea. Sheathing 7/16"48" x 72"
2ea. Sheathing 7/16"36-1/2" x 72"
Qty.Material Shipped in Trim Carton
4ea.1x3 x 96" White Pine Corner Trim
4ea.1x4" x 99" White Pine Corner Trim
Qty.
41 pcs.2x4Pre-cut Wall Studs
2 pcs.2x4 - 8' Tie Plates
8 pcs.2x4 - 10' Wall & Tie Plates
8 pcs.2x4 - 12' Wall & Tie Plates
2 pcs.2x8 - 8' Door Header
15 pcs.Exterior Siding4x8
4pcs.OSB Sheathing4x8
Material Supplied by Local Supplier
2ea. Sheathing 7/16"36-1/2" x 48"
2ea. Sheathing 7/16"36-1/2" x 33-1/4"
2ea. Header Filler7/16" 7-1/4" x 48"
Additional material not used in this model
2ea. Door Jamb3/8"5-3/8" x 48"
2ea. Door Jamb3/8"5-3/8" x 84"
1ea. Siding Panels 3/8" 20" x 48-3/4"
2ea. Soffit Panels 3/8 48" x 7"
4ea. Gussets 7/16" 10" x 24"
8ea. Gussets 7/16" 12" x 24"
Qty. Material Shipped in 4' Extension Kit
2 2x4 Collar Ties82"
4 2x4 Truss Rafters80-1/2"
2 1x4 Side Wall Fascia48"
4 2x4 Soffit Blocks5" or longer
4 H1 Metal Truss Hangers
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