Royston Daltrey is now appealing for witnesses to the incident, which happened on the westbound carriageway of the A27 near Lyons Farm around 9.30am on Monday (September 4).
"I was driving along and a picnic table flew up off the van in front of me and ended up on my windscreen,” Royston said.
“It was very scary. I just heard a big bang and next thing I was covered in glass. That was it, it was that quick.
"I saw the thing go up in the air and in the split second it happened, it looked like it may miss me and go on the pavement. But it didn't.
"I was covered in glass and had to have a shower when I got home.”
Royston, who is self-employed and was out on a job at the time of the incident, was thankful he didn’t have either of his two sons in the vehicle at the time.