I think you should use galvanized hardware for treated lumber to resist rust.
I assume the trailer has flat steel surfaces to attach the floor to and that you have prepared the surface and repainted it and have rewelded any cracks.
My observation is that the treated lumber, which has been pressure treated green, will warp as it dries unless it is fastened securely. There is treated lumber availiable which has been dried before treating and If you haven't already got your lumber I would look into that.
Commercial trailer makers use a self tapping special screw. Don't know if they are availiable to the public. They are flush with the surface of the wood when installed. Don't know if they are availiable galvanized.
I don't like to use carriage bolts. While they have a round top and the cargo won't catch on them, the soft lumber won't hold the bolt tight to retighten sometime in the future or remove if you need to change the boards. You will have to cut them off. Hex head machine bolts with a washer under them can be tightened, retightened, or removed at will, but they may catch on the cargo. If you are using 2 inch thick boards you could counter sink the holes so as to get the bolt heads below wood level, using machine bolts and washers.
Assuming you are using 6 or 8 inch wide boards, you need 2 bolts for every support and 2 in each end. Probably 1 bolt in every other cross support would be sufficient. Don't know how wide apart your cross members are, but on commercial trailers they are 18 inches apart.
That's the only choices I'm aware of. I'll repeat the advice to use galvanized hardware. Wouldn't hurt to grease the bolts to resist rust also.
We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]
Today's Featured Article - Restoration Story: Fordson Major - by Anthony West. George bought his Fordson Major from a an implement sale about 18 years ago for £200.00 (UK). There is no known history regarding its origins or what service it had done, but the following work was undertaken alone to bring it up to show standard. From the engine number, it was found that this Major was produced late 1946. It was almost complete but had various parts that would definitely need replacing.
... [Read Article]
Latest Ad:
1964 I-H 140 tractor with cultivators and sidedresser. Starts and runs good. Asking 2650. CALL RON AT 502-319-1952
[More Ads]
All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy
TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.
