10' - 0" Floor W
idth
Side
Wall
FRONT
- Door Side
Nail 2x4 joist headers and
floor joist to 4x4.
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.
If installing building on a concrete slab, install
sill sealer between concrete and bottom wall plate.
2.
Cut 2x4-10' floor joists to 9'-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 10'-0" building width.
1.
Cut joist headers to floor length. See Below.
Layout for 16" on center joist spacing. 'X' marks where floor joist will be placed.
X
X
X
X
X
X
16"
15-1/4"
Joist Header
X
X
16"
4x4 Treated Runners
Joist 9' - 9" Long
2x4 Joist Header
13' - 9" Floor Length
Material Description
14' x 10' shed
2x4 Joist Headers
2 pcs.
14'
2x4 Floor Joist
12 pcs.
10'
4x4 Treated Runners
6 pcs.
8'
Flooring 5/8" or 3/4"
5 pcs.
4x8
Screw Floor Nails
1 lb.
8d
Galv. Box Nails
1 lb.
16d
Constructing Details for Deluxe Floor System
Deluxe floors include 4x4 runners, standard floors do not
Foundation size is 10"-0" x 13'-9". 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.
