Do traditional cotton OCBD shirts vary much by weight, from source to source? Do some manufacturers use heavier weight cloth than others, and if so, who makes the more "heavyweight" OCBD shirts? (I'm not asking about pinpoint OC, which is a lot lighter--just interested in traditional aka "substantial" cotton cloth shirts.)
As a point of reference, LL Bean OCBDs use a 5.5 oz/sq yard cloth and a medium sized (16/33) shirt weighs about 14 oz. How heavy are others in comparison? And where could I go for a more substantial shirt?
In a word, sure!
But most retailers don't necessarily advertise the weight of cloth used in the shirts they sell. The weight of the cloth is dependent upon a variety of factors including spinning, I.e., how dense the yarn is and its diameter, and weaving, I.e, how tightly it's woven. And since both the amount and quality of fiber that goes into making the cloth significantly affects its cost of production, it also significantly affects the cost of production of the entire shirt. So all things being equal, (Which of course they never are.) less costly shirts are typically woven from lighter weight Oxford cloth.
I will confess to being a purchaser primarily of so-called "wrinkle free" shirts. A quick check of Bean yielded only wrinkle free OCBD's. Unfortunately, my experience has been that Bean's wrinkle free finish is generally among the stiffer/scratchier and less breathable versions. 5.5oz does not sound very heavy for oxford cotton, but may be about as heavy as bearable if it has this finish.
Brooks used to consistently sell a heavier weight oxford cotton, but since they became part of the fashion industry I've noticed significant variance in the cloth used just from season to season, so I would not feel justified in stating their shirts are any longer anything special.
While I've never had one, I've heard Mercer's shirts universally proclaimed as using old fashioned, high quality heavier weight oxford cloth.