Mobile Home repairs replacing floor #DIY

when i replace floors on a mobile home .
The way I Join the plywood at the seams using 2x4s turned sideways to makr yhe joint as strong as possible. Im not a carpenter.
thid is a do it yourself operation. DIY
#Poordirtfarmer
#diy
#diy
#MOBLIEHOMEREPAIR
#floor
#flooring