downdraft table

[spacebluesonoma]

right now using my shopvac for dust collection. what is the most efficent size downdraft table you folks would recommend?

thanks

[papadan]

All depends on what types of things you build. Picture frames or tables?

[spacebluesonoma]

Would be primarily used for sanding items prior to being assembled. I do have that shop vac attachment for the back of the ROS but that is awkward to have that hose behind it. I know the shopvac can only provide so much suction and that will lessen as the table gets bigger. I was thinking maybe 18" or 24" square?

[imported_wbrooks]

Here is a link to Delta's offering. It is 20 X 40 but has a 4" dust port. Not sure how it would work with a shopvac due to their realatively low volume of airflow but it may give you some ideas.
Delta downdraft mat (http://www.deltawoodworking.com/index.asp?e=136&p=4839)