To keep 2x4 frame from
moving, toe nail to 4x4.
X
X
X
X
X
X
16"
15-1/4"
2x4 Joist Header
X
X
16"
Typical Wood Floor System
Shown below is a typical wood floor. Depending on your area, the construction may have
to be changed to meet local codes.
4x4 - 8'Treated
Runners
2.
Cut 2x4-12' floor joist to 11'-9". 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. Nail 2x4 framing together with 16d galv. deck nails.
1.
Cut (2) two 2x4-12' joist headers to a length of 12 '- 0". Layout for 16" on center spacing.
'X' marks where floor joist will be placed.
It is important that the floor be level and square.
Before nailing the flooring, measure the floor
diagonally (corner to corner). Then measure the
opposite corners. These measurements will be
the same if the floor is square.
Material Description
12' x 12' shed
2x4 Joist Headers
2 pcs.
12'
2x4 Floor Joist
10 pcs.
12'
2x6 Porch Flooring
9 pcs.
12'
4x4 Treated Runners
10 pcs.
8'
Flooring 5/8" or 3/4"
5 pcs. 4x8
8d Screw Floor Nails
2 lbs.
8d
16d Galv. Deck Nails
3 lbs. 16d
12' - 0" Floor Length
12' - 0" Building W
idth
Joist 11' - 9"
2x6 Floor
Boards
!
!
!
!
Cut 8' runner in half for
support under 2x6 boards.
4x8
Flooring
3.
Install flooring over 2x4 frame, use 8d screw
type flooring nails.
4.
Install 2x6 boards over 4x4 treated runners,
use 16d deck nails. Butt boards tight.
