The boss at Great Yarmouth's Outer Harbour says a shortage of haulage drivers is leading to a build up of timber at the site.
While the port is said to be unaffected by supply issues affecting container ports such as Felxistowe, it has seen fewer lorry drivers turning up to collect timber deliveries off vessels.
Richard Goffin, director of Peel Ports Great Yarmouth, said there was about 10,000 cubic metres of timber waiting to be collected.
Mr Goffin said: "There is not the availability of hauliers they would like."
In regard to issues affecting other major ports, he added the national supply line chain was heavily reliant on a few core key locations such as Dover and Felixstowe.
Mr Goffin said: "The ripple effect is absolutely massive."
He added that apart from a focus on supplying timber, the port was also focussed on receiving aggregates.
Looking forward Mr Goffin said the construction of the third river crossing and an offshore energy campus will help improve the port's offer.
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules here