How To Build Concrete Wall Forms With Plywood
Thick concrete pours of greater than 8 inches may require a second round of stakes set a couple of feet behind the concrete form with kickers nailed to the bottom of the rear stakes and the top of the form stakes to provide additional stability.
How to build concrete wall forms with plywood. Straight flat lumber without knotholes provides the best concrete forms. Since plywood comes in 4 x 8 sheets the forms are better off 8 long for the most part. Im looking at a job that has a 16 ft tall by 90 ft wall and a 20 ft tall by 50 ft wall. Then pour your concrete inside the form using a chute or hose attached to the mixer.
To form a concrete wall first set up plywood boards on either side of your concrete footer and attach them together with wire. Even though we are not dealing concrete blocks always base the height of a concrete wall form on a multiple of 8. Worried about possibly blowing the forms and 1 inch formboard is hard to get ahold of. It would be advisable not to build the forms any taller than 4.
If i make the ties close enough together does it matter. Stand your plywood up so it is butted against the 2 by 4 you nailed down in the space between the end of the 2 by 4 and the string. For taller walls build shorter forms to add to the 4 sections.