Attaching the extension rails...the trick is not to assemble the rails until you have the
vertical 2x4 rails coming up from the floor on the far right. The rails actually sit on top of
these 2x4 legs, and when you connect both front and rear legs with a 2x6, it is notched to
reach up and touch the underside of the table also. Then, extend the transport handle and
rest just the handle up on a stationary object (picnic table bench) which allows the
horizontal 2x4 braces to be under load while the extension rails are added. The concern
here is to prevent the rails from flexing any more after the added weight of the extension
table top. Cutting those vertical legs on the right to exactly the correct height and resting
the extension rails on top reminded me of the SMT adjustment, because you also have to
take into account the fence clearance and how it rides across the whole extension table.
Just cut the legs, test the straightness of the extension rails, and try again until you get it
right.
vertical 2x4 rails coming up from the floor on the far right. The rails actually sit on top of
these 2x4 legs, and when you connect both front and rear legs with a 2x6, it is notched to
reach up and touch the underside of the table also. Then, extend the transport handle and
rest just the handle up on a stationary object (picnic table bench) which allows the
horizontal 2x4 braces to be under load while the extension rails are added. The concern
here is to prevent the rails from flexing any more after the added weight of the extension
table top. Cutting those vertical legs on the right to exactly the correct height and resting
the extension rails on top reminded me of the SMT adjustment, because you also have to
take into account the fence clearance and how it rides across the whole extension table.
Just cut the legs, test the straightness of the extension rails, and try again until you get it
right.