Ordering building materials: how to get a quote you can actually compare

Why a clear materials list is everything, how delivery and market movement affect the price, and the account discount most people never ask for.

Stacked timber and building materials on a site

Behind almost every project — a deck, an extension, a repair — sits an order of timber, sheeting, cladding, cement and hardware. Building suppliers are where that order comes from, and unlike a trade, there's no standard job to price: the cost is whatever you order.

That makes the materials list the single most important document. A vague one gets you a vague quote; a precise one lets you compare suppliers line by line and catch the ones padding the middle.

What building suppliers provide

Suppliers stock the structural and finishing materials that trades install: framing timber, plasterboard, insulation, cladding, cement products, fixings and hardware. Some are big-box retailers, others specialist yards; trade-focused suppliers often carry grades and treatments the retail chains don't, and can advise on quantities if you give them a plan.

Delivery is almost always charged separately — a standard truck drop is modest, while crane trucks for heavy or awkward loads, split deliveries and remote sites cost more. Factor it in early rather than being surprised at checkout.

The other thing to understand is that material prices move. Timber and steel in particular track the market, so a quote is typically only held for a couple of weeks to a month. On a long project you can genuinely see prices change between orders, which is worth planning around.

How the cost works

There's no meaningful average here — the order is the price. A small repair or weekend-project order sits in the hundreds, a renovation materials package for a room extension lands in the low-to-mid thousands, and a full frame-and-truss package for a large extension or small build runs well into five figures, plus delivery. All indicative; the estimate on this page scales with your floor area and material grade.

Grade and treatment are the big multipliers. Structural, treated and hardwood products cost significantly more than untreated pine, so a quote that looks cheap may simply be specifying a lesser product. One habit worth adopting: allow five to ten per cent extra material for offcuts and waste, especially on timber and sheet goods, so you're not paying a second delivery fee for the last three boards.

Choosing the right supplier

Supplying materials isn't a licensed activity, so this is about pricing transparency rather than credentials. Ask for an itemised quote — line by line, with grades and quantities — so you can compare suppliers on the same list rather than a single lump sum. A supplier who won't itemise is a supplier you can't check.

Two questions save real money. First, ask how long the quoted prices are held, since many lapse in weeks. Second, ask about trade or account pricing — account holders often pay noticeably less than walk-in retail, and some suppliers extend it to owner-builders with an ABN. If your project is large enough, that discount alone can fund the delivery.

Mistakes to avoid

Supply mistakes are mostly about vague orders and forgotten extras — cheap to avoid, annoying to discover mid-build.

Asking for a price without a clear, itemised materials list — you can't compare lump sums
Forgetting delivery in the budget, especially for crane trucks or remote sites
Ordering exactly what the plan says with no waste allowance for offcuts
Assuming a quote holds indefinitely when most lapse within a few weeks
Not asking about trade or account pricing, and paying full retail
Comparing a cheap quote against a dearer one without checking they specify the same grade

What does it cost?

$100 – $25,000most jobs land around $4,000

Indicative range only, not a quote — see the full guide for worked scenarios and what moves the price.

Building Suppliers cost guide →Find building suppliers near you