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Rough Sawn Timber Regularised FSC 47 x 50mm
£1.84 - £10.56 per piece (Ex VAT)£2.21 - £12.67 per piece (Inc VAT)Regularised timber has gone through a machine which rounds the edges and smooths the faces and sides of the piece. This operation uniforms the finished size which will usually be 5mm less than stated on both the face and width. Carcassing is a generic... -
C24 Timber Joists UC2 Treated Kiln Dried Regularised PEFC 44 x 120mm
£5.52 - £31.76 per piece (Ex VAT)£6.62 - £38.11 per piece (Inc VAT)Treated C24 is a structural timber that's commonly used for stud walls, roof and floor joists, and structural joinery. The use of C24 grade timber, which has a smaller cross section, allows for higher loads, and longer spans. C24 grade has fewer... -
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C16 Timber Joists UC4 Treated Brown Incised Kiln Dried Regularised FSC 47 x 150mm
£3.13 - £17.97 per piece (Ex VAT)£3.76 - £21.56 per piece (Inc VAT)C16 deck joists are perfect for supporting your decking area, as they sit under your decking planks. This brown timber carcassing is UC4 treated, meaning that not only is it ideal for outdoor use, but it is also suitable for direct contact with the... -
C16 Timber Joists Untreated Kiln Dried Regularised FSC 44 x 95mm
£3.63 - £20.86 per piece (Ex VAT)£4.36 - £25.03 per piece (Inc VAT)C16 and C24 are strength grades; the higher the grade, the better the load bearing quality it has. C16 is normally the grade that is produced from faster grown UK timber. C24 is a premium product as the wood is slower grown and is also denser. Higher... -
C24 Timber Joists UC2 Treated Kiln Dried Regularised PEFC 44 x 195mm
£8.84 - £50.81 per piece (Ex VAT)£10.61 - £60.97 per piece (Inc VAT)Treated C24 is a structural timber that's commonly used for stud walls, roof and floor joists, and structural joinery. The use of C24 grade timber, which has a smaller cross section, allows for higher loads, and longer spans. C24 grade has fewer... -
C16 Timber Joists Treated Kiln Dried Regularised PEFC 44 x 70mm
£3.31 - £19.05 per piece (Ex VAT)£3.97 - £22.86 per piece (Inc VAT)C16 graded carcassing is a structural timber commonly used for stud walls, roof and floor joists, and structural joinery. C16 is normally the grade that is produced from faster grown UK timber. It is machined to have rounded edges, smooth faces, and... -
Rough Sawn Timber UC2 Treated Type A PEFC 25 x 38mm
£0.89 - £5.10 per piece (Ex VAT)£1.07 - £6.12 per piece (Inc VAT)The sawn treated carcassing has a rough sawn finish, which is pressure treated to prolong timbers lifespan and protect rot or insect attack. This non- structural softwood that is ideal for internal framing or studwork. Carcassing is a standard term term... -
C24 Timber Joists Kiln Dried Regularised PEFC 44 x 170mm
£7.19 - £41.35 per piece (Ex VAT)£8.63 - £49.62 per piece (Inc VAT)C24 is a structural timber typically used to support structures and frameworks for buildings such as walls, ceilings and decking joists. It has many other uses for structural joinery. The use of C24 grade timber, which has a smaller cross-section,... -
C16 Timber Joists Kiln Dried Regularised FSC 44 x 95mm
£4.11 - £23.63 per piece (Ex VAT)£4.93 - £28.36 per piece (Inc VAT)C16 graded carcassing is a structural timber commonly used for stud walls, roof and floor joists, and structural joinery. C16 is normally the grade that is produced from faster grown UK timber. It is machined to have rounded edges, smooth faces, and... -
Rough Sawn Timber UC2 Treated Tile Batten PEFC 25 x 38mm
£1.01 - £5.81 per piece (Ex VAT)£1.21 - £6.97 per piece (Inc VAT)This timber is sourced and produced in the British Isles, reducing the carbon footprint of timber products compared to imported products. The sawn treated carcassing has a rough sawn finish, which is pressure treated to prolong timbers lifespan and... -
C24 Timber Joists Kiln Dried Regularised PEFC 44 x 120mm
£5.14 - £29.53 per piece (Ex VAT)£6.17 - £35.44 per piece (Inc VAT)C24 is a structural timber typically used to support structures and frameworks for buildings such as walls, ceilings and decking joists. It has many other uses for structural joinery. The use of C24 grade timber, which has a smaller cross-section,... -
C24 Timber Joists Kiln Dried Regularised PEFC 44 x 220mm
£9.25 - £53.16 per piece (Ex VAT)£11.10 - £63.79 per piece (Inc VAT)C24 is a structural timber typically used to support structures and frameworks for buildings such as walls, ceilings and decking joists. It has many other uses for structural joinery. The use of C24 grade timber, which has a smaller cross-section,... -
C24 Timber Joists UC2 Treated Kiln Dried Regularised PEFC 44 x 170mm
£7.73 - £44.46 per piece (Ex VAT)£9.28 - £53.35 per piece (Inc VAT)Treated C24 is a structural timber that's commonly used for stud walls, roof and floor joists, and structural joinery. The use of C24 grade timber, which has a smaller cross section, allows for higher loads, and longer spans. C24 grade has fewer... -
Rough Sawn Timber Unseasoned 38 x 50mm
£1.69 - £9.73 per piece (Ex VAT)£2.03 - £11.68 per piece (Inc VAT)Carcassing is the general term for timber that is used to form floors, walls, ceilings and roofs of properties. All our timber has full chain of custody, meaning our timber is sourced responsibly. Unseasoned timber means timber than has not yet dried to... -
C16 Timber Joists Untreated Kiln Dried Regularised FSC 47 x 75mm
£2.72 - £15.65 per piece (Ex VAT)£3.26 - £18.78 per piece (Inc VAT)C16 and C24 are strength grades; the higher the grade, the better the load bearing quality it has. C16 is normally the grade that is produced from faster grown UK timber. C24 is a premium product as the wood is slower grown and is also denser. Higher... -
C24 Timber Joists Kiln Dried Regularised PEFC 44 x 190mm
£8.22 - £47.26 per piece (Ex VAT)£9.86 - £56.71 per piece (Inc VAT)C24 is a structural timber typically used to support structures and frameworks for buildings such as walls, ceilings and decking joists. It has many other uses for structural joinery. The use of C24 grade timber, which has a smaller cross-section,... -
Rough Sawn Timber UC2 Treated Type A PEFC 25 x 50mm
£1.17 - £6.71 per piece (Ex VAT)£1.40 - £8.05 per piece (Inc VAT)This UC2 treated carcassing has a rough sawn finish, which is pressure treated to prolong timbers lifespan and protect rot or insect attack. This non- structural softwood is ideal for construction projects. This product has PEFC certification and full... -
C24 Timber Joists UC2 Treated Kiln Dried Regularised FSC 44 x 70mm
£3.31 - £19.05 per piece (Ex VAT)£3.97 - £22.86 per piece (Inc VAT)Treated C24 is a structural timber that's commonly used for stud walls, roof and floor joists, and structural joinery. The use of C24 grade timber, which has a smaller cross section, allows for higher loads, and longer spans. C24 grade has fewer... -
Rough Sawn Timber UC3u Treated Green Unseasoned FSC 22 x 200mm
£3.74 - £21.48 per piece (Ex VAT)£4.49 - £25.78 per piece (Inc VAT)Treated timber is suitable to be used externally and is suitable for wet areas or areas where the timber will be coming into contact with the ground. Examples of treated timber uses are outdoor decking, shed bases, posts, sleepers. -
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C24 Timber Joists UC4 Treated Green PEFC 45 x 145mm
£4.50 - £25.88 per piece (Ex VAT)£5.40 - £31.06 per piece (Inc VAT)Our C24 timber joists are ideal for supporting your decked area. This timber is treated with UC4 preservative, meaning that not only is it ideal for outdoor use, but it is also suitable for direct contact with the ground. C24 graded timber is produced... -
C16 Timber Joists Kiln Dried Regularised FSC 44 x 70mm
£3.08 - £17.72 per piece (Ex VAT)£3.70 - £21.26 per piece (Inc VAT)C16 graded carcassing is a structural timber commonly used for stud walls, roof and floor joists, and structural joinery. C16 is normally the grade that is produced from faster grown UK timber. It is machined to have rounded edges, smooth faces, and... -
Rough Sawn Timber UC3u Treated Unseasoned UK FSC 25 x 50mm
£1.29 - £7.44 per piece (Ex VAT)£1.55 - £8.93 per piece (Inc VAT)Treated timber is suitable to be used externally and is suitable for wet areas or areas where the timber will be coming into contact with the ground. Examples of treated timber uses are outdoor decking, shed bases, posts, sleepers. Carcassing is a... -
Rough Sawn Timber UC2 Treated Kiln Dried Regularlised FSC 45 x 45mm
£2.24 - £12.89 per piece (Ex VAT)£2.69 - £15.47 per piece (Inc VAT)The sawn treated carcassing has a rough sawn finish, which is pressure treated to prolong timbers lifespan and protect rot or insect attack. This non- structural softwood is ideal for construction and landscaping projects. -
C16 Timber Joists Kiln Dried Regularised PEFC 44 x 70mm
£3.08 - £17.72 per piece (Ex VAT)£3.70 - £21.26 per piece (Inc VAT)C16 graded carcassing is a structural timber commonly used for stud walls, roof and floor joists, and structural joinery. C16 is normally the grade that is produced from faster grown UK timber. It is machined to have rounded edges, smooth faces, and...
Rough Sawn Timber
What is Structural Carcassing Timber?
Often referred to as carcassing timber, this type of wood is most commonly used in structural applications that involve the timber being used in an area that won’t be seen, and typically comes in three gradings:
- C16 Timber
- C24 Timber
- Part Graded Timber
Do I need Treated Structural Timber?
If the timber is going to be placed in an area where attacks from external problems such as moisture or fungal attacks, are likely to cause major problems, then we strongly recommend purchasing treated structural timber.
For all the following applications, we generally recommend using a treated structural timber:
- Roof Rafters
- Timber Framing
- Ceiling Joists
- Floor Joists
- Deck Joists
I need a Sawn Finish Structural Timber
Sawn Carcassing Timber has largely been replaced in UK stockists with “eased edge” stock being introduced in the UK in 2004.
Eased Edged means that the timber is semi-surfaced and finished to a uniform finish that is relatively smooth. Four corners are radiused to reduce the likelihood of splinters.
Most of our branches do hold stock of sawn boards that are either treated or untreated. However, if you require a sawn unsurfaced finish, please contact your nearest branch, who will be able to source this as a special item to meet your requirements. Most sizes can be obtained within 5 to 10 working days.
Confused about C16 and C24 structural timber and which grade you will need? Your nearest branch will be more than happy to help.