James Jones was one of the first UK timber processors to introduce stress graded British carcassing to the UK construction industry. Our philosophy was, and remains to this day, to offer the very best in quality products and customer service, consistently.
Our five Scottish-based mills retain a high degree of flexibility, while achieving extremely high levels of efficiency due to the on-going investment in the latest timber technology made by the company. 3-D scanning, X-ray grading, mini-bundling and incising are among the latest technological innovations we have introduced to assist and complement high-speed, high volume and high yield production.
We offer an ex-stock capability on a wide range of carcassing specifications augmented by a wide range of complementary specifications.
As the UK’s leading supplier of J-Joists (also known as planed carcassing with Eased corners), we offer:
mm | 50 | 75 | 100 | 125 | 150 | 175 | 200 | 225 | |
Finished Dimension | 44 | 72 | 97 | 120 | 145 | 170 | 195 | 220 | |
47 | 44 | ![]() |
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75 | 72 | ![]() |
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mm | 50 | 75 | 100 |
47 | ![]() |
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mm | 50 | 75 | 100 | |
Finished Dimension | 44 | 72 | 97 | |
47 | 44 | ![]() |
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75 | 72 | ![]() |
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We maintain an ongoing stock commitment of ungraded, unseasoned timber at each of our carcassing mills.
Complementary to our core carcassing ranges, production comes in a variety of standard specifications.
Also available:
50mm | 75mm | 100mm | 150mm | |
38mm |
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47mm |
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75mm |
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Looking for a different specification? Just ask.
We were one of the first UK timber companies to introduce X-ray strength-grading technology, allowing for complete confidence in our C16 construction grade timber.