Start with the job, not the timber rack
The best timber choice depends on where the material will be used, how it will be loaded, whether it will be exposed to weather, how it will be fixed and what finish is expected. A piece of timber that is suitable for an internal wall frame may be the wrong choice for a fence, deck, garden structure or visible lining board. Before comparing prices, write down the purpose of the timber, whether it is structural or decorative and whether it will be protected, damp, exposed or close to the ground.
For general planning, timber can be grouped into framing timber, treated pine, hardwood, engineered timber, appearance timber, decking boards and sheet products. Each group has different questions. Framing timber needs grade, straightness and compliance checks. Outdoor timber needs treatment and durability questions. Appearance timber needs colour, grain, profile and finish planning. Engineered timber needs design confirmation and installation instructions.
Common timber supply categories
| Category | Common use | Questions to ask |
|---|---|---|
| Framing timber | Wall frames, roof framing and general protected structural work | What grade is required? Is it treated? Are the lengths straight and suitable for the frame? |
| Treated pine | Fencing, pergolas, landscaping and outdoor construction when correctly specified | What treatment level is required for exposure, moisture or ground contact? |
| Hardwood | Decking, posts, feature work, heavy-duty outdoor use and decorative applications | Which species is being supplied? What movement, pre-drilling and finishing is needed? |
| Engineered timber | Beams, joists, lintels and designed structural members | Has the member been specified by the designer or engineer? What installation notes apply? |
| Appearance timber | Lining boards, trim, feature walls, screens and furniture-style work | What grade, profile, colour variation and finish quality should be expected? |
How to prepare a better timber order
A good timber order includes more than the length and quantity. Include the product name, grade, dimensions, treatment, moisture expectation, length preference, acceptable substitutions, delivery address, access notes and required delivery date. If timber will be stored on site, confirm where it will sit and how it will be protected before it arrives.
- Confirm whether the timber is structural, decorative or general purpose.
- Check whether the timber will be indoors, outdoors, wet, damp, exposed or in ground contact.
- Confirm grade, treatment, length, profile and finish expectations.
- Allow for cutting waste, defects, sorting and future repairs.
- Order compatible fasteners, connectors, adhesives and coatings at the same time.
- Plan covered, level storage before delivery.
Treated pine vs hardwood
Treated pine is commonly chosen because it is widely available, workable and often cost-effective. Its performance depends heavily on using the correct treatment level for the application. It can be a practical choice for fences, pergolas, landscaping and outdoor structures when product suitability has been confirmed. Hardwood is often chosen for durability, appearance and strength, but it can be more expensive, heavier and more demanding to machine, pre-drill and finish.
There is no single winner. The right choice depends on exposure, budget, desired look, maintenance expectations and the builder's preferred fixing method. A visible outdoor feature may justify hardwood. A hidden or painted outdoor frame may suit treated pine when the treatment class is right. A structural member should be selected based on design requirements rather than appearance or price alone.
Storage matters as much as selection
Timber is sensitive to moisture, heat, sun and uneven support. Poor storage can lead to cupping, bowing, twisting, staining or swelling before installation begins. Packs should be kept level, lifted off the ground, protected from rain and allowed to breathe. Do not wrap wet timber in plastic and trap moisture. Do not leave appearance timber in full sun for days before installation. If the project relies on clean visible timber, storage should be treated as part of the quality plan.
Questions to ask a timber supplier
Before ordering, ask whether the product is in stock, whether lengths are random or specified, whether the timber is suitable for the exposure, whether a treatment certificate or product data sheet is available, whether the product needs sealing or coating, how it should be stored and whether matching stock will be available later if more is needed. Also ask what substitutions may be offered if stock changes before delivery.
Clear communication avoids common disputes. If appearance matters, say so. If straightness matters because the timber will be visible or used in framing, say so. If delivery access is tight, provide photos or notes. If the timber will sit on site for a week before installation, prepare cover and bearers before the truck arrives.