A PRIVATE CUSTOM MAY BE ESTABLISHED TO SUPERSEDE A GENERAL CUSTOM.
It seems to be a generally accepted custom in the lumber trade that using a shipment of lumber, even though there be a dispute regarding the grade, constitutes an acceptance of the shipment as invoiced unless the shipper has authorized the purchaser to use a part or all of the lumber in dispute. Our Legal Department has received some claims for members on disputed shipments where, from an examination of the correspondence, it appeared the member had a valid claim for the full amount of the invoice. After negotiations with the buyers it developed that in past transactions allowances were made on several shipments where the grade was in dispute, after the lumber had been used. We have had occasion to go into such matters with our attorneys and the latter are of the opinion that where a sufficient number of adjustments have been made on such a basis, practically acquiescing in the buyers using a part of the lumber, would prejudice a claim on a subsequent shipment where the shipper attempted to take advantage of his right of recovery. Frequently disputed claims of this character are small and have to be tried before a local jury and our attorneys have stated that the custom of having made allowances in the past after lumber was used would have some bearing with a jury on a subsequent deal, and possibly be construed by the court as a private custom apart from the general trade custom.
Opinion No. 90.