Most building jobs fail not because of design, but because of the timber underneath. Wood that twists. Timber that drinks moisture. Frames that move when they should stay put. 3×2 treated timber is chosen by people who want the structure to behave. Builders. Trades. Homeowners who are tired of fixing things twice. It is the size you reach for when you need strength without bulk, and reliability without guesswork. From garden frames to internal studwork, this timber is used where straight lines matter and movement causes problems later. It is practical timber for real jobs, not showroom pieces.
What is treated timber 75×47?
Treated timber 75×47 is pressure-treated softwood designed for structural and outdoor use. The treatment protects the wood from moisture, rot and insect attack, which makes it suitable for damp areas and external projects.
You may see it called 75x47mm treated timber, 70x45mmor 75 x 50mm treated C16 timber, or 3×2 green timber. These names refer to the same working size. The difference comes from planning standards and how sizes are listed across the UK trade. On-site, they are used interchangeably.
This is C16 graded timber, kiln dried before treatment to reduce movement. It holds its shape better, stays straighter for longer and performs predictably once fixed in place. That is why 3×2 C16 treated timber is a staple size for framing, garden builds and carcassing work.
It is not decorative wood. It is timber you rely on when the build needs to stay solid through weather changes, seasonal moisture and daily use.
What is 3×2 treated timber used for?
3×2 timber is one of the most versatile sizes in UK construction. It is light enough to handle easily, but strong enough for structural support.
Garden frames, planters and raised beds
Pergolas, seating frames and chill-out zones
Fence supports and small outdoor structures
Stud walls and internal framing
Shed construction and base frames
Carcassing work where carcassing timber 3×2 is the practical choice
For garden projects in particular, 75×47 treated timber is ideal. It copes well with ground moisture, rain exposure and temperature changes. Raised flower beds, garden storage frames or simple seating structures all benefit from timber that does not rot after one wet season. If you are building a garden corner to sit, plant, store or relax, this size gives enough strength without making the structure heavy or awkward to work with. 3×2 treated timber is chosen when you want the build to last, not just look finished on day one.
Benefits of 3×2 treated C16 timber
The main benefit of 3×2 treated C16 timber is confidence in the structure. You fix it once and move on. The timber stays straight, holds its shape and does not fight against the build as it settles.
The pressure treatment protects the wood from moisture, rot and insect damage. That makes this size suitable for outdoor use and damp environments where untreated timber would fail early. Garden frames, raised beds and external structures last longer with less maintenance.
C16 grading gives predictable strength. Loads behave as expected. Spans feel solid. Whether it is used as 75×47 C16 timber for framing or as carcassing timber 70×45 for garden builds, the performance stays consistent.
Kiln drying before treatment reduces movement. The timber is easier to work with, easier to align and easier to keep square. Fixings sit better. Frames stay cleaner. Finished work looks tighter.
This size also offers practical value. 3×2 treated timber gives strength without unnecessary bulk, keeping builds lighter and easier to handle on site. For many projects, it is the point where cost, performance and usability meet.
It is timber chosen for everyday builds that need to last through seasons, not just through installation.
Why choose our treated timber 3×2?
When builders choose treated timber 75×47, they usually care about two things.
That it performs properly. And that the buying process does not slow the job down.
At Sheet Materials Wholesale, this size is stocked for real builds, not special orders. It is a UK stock, ready to go, and priced to make sense for both trade and DIY customers. You get solid value for money, whether you are buying a few lengths or placing a bulk order with volume discounts and pallet quantities.
Pricing stays competitive because this is what we do every day. Trade customers benefit from trade discounts, while larger projects can be supported with fast quotes in minutes. No waiting. No back and forth.
Delivery is built around how sites actually work. We offer fast UK delivery, with next-day delivery available on most orders. Timber can be delivered kerbside to the site or home, whether it is a residential address or a working site. Nationwide coverage means the same service, wherever the build is happening.
Every order comes with a VAT invoice provided and order tracking, so paperwork and logistics stay simple. That matters when materials need to arrive on time and be accounted for properly. Stock is project-ready, consistent, and suitable for immediate use. This is treated timber supplied by people who understand how it is used. Practical stock. Clear pricing. Reliable delivery. Support that works for both trade and DIY projects.
This 3×2 treated timber is supplied in a standard 75mm x 47mm nominal size or 70x45mm actual finished size. It is C16 graded, moisture resistant and suitable for both internal and external use. The timber is available in 2400mm, 3000mm and 3600mm lengths.
Choose the length you need and add it to your order. Get trade pricing, clear delivery times and UK stock ready to move.
At Sheet Materials Wholesale, you can purchase 3×2 Treated Timber at low wholesale prices with fast nationwide delivery for most of items within 1-3 working days across the UK. Next-day delivery is also available on most orders. Competitive rates guaranteed.
FAQ
Where to buy 3x2 treated timber?
You can buy 3x2 treated timber online at Sheet Materials Wholesale. Order directly from the website and get delivery to the site or home anywhere in the UK.
How much is 3x2 treated timber?
Prices usually start from around £3.57 per length. Prices change by length and stock, so always check the latest price on the Sheet Materials Wholesale website.
What is 3x2 timber in mm?
3x2 timber is commonly supplied as 75mm x 47mm as trade nominal size. It is also known as 70x45 finished actual size.
What size screws for 3x2 timber?
Most jobs use 4.5mm or 5mm wood screws. Length depends on the joint, but 70mm to 100mm screws work well for framing and garden builds.
How strong is 3x2 timber?
3x2 timber is strong enough for framing, stud walls and garden structures. In C16 grade, it handles everyday loads with no issues when fixed correctly.
Our C16 graded 3×2 timber that stays straight and strong, it is kiln dried and minimises movement. The pressure treatment resists rot and pests. It comes from a slow-grown softwood, which means a smoother finish, excellent stability and robust load performance.
Our C16 graded 3×2 timber that stays straight and strong, it is kiln dried and minimises movement. The pressure treatment resists rot and pests. It comes from a slow-grown softwood, which means a smoother finish, excellent stability and robust load performance.
Our C16 graded 3×2 timber that stays straight and strong, it is kiln dried and minimises movement. The pressure treatment resists rot and pests. It comes from a slow-grown softwood, which means a smoother finish, excellent stability and robust load performance.
