How To Build A Shed: Step By Step
Your Complete Guide To Building Your Own Shed In WA
This step-by-step guide walks you through the whole process — from the slab to the final door — so you can build with confidence. Every kit comes with clear drawings and our free Installation Workshop.
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Indicative estimate only. Includes 1 roller door and 1 PA door at an 11° roof pitch; enter your postcode to apply the correct WA wind region. Engineering included; shire fees and delivery are quoted separately. The weekly figure is an example repayment over a 36-month interest-free term for approved applicants; terms, fees, charges and lending criteria apply.
HOW DO YOU BUILD A SHED KIT?
You assemble the shed by following the supplied build guide, which sequences the slab fixing, frame, bracing, roof and wall cladding, then doors and trims. Because the kit is pre-punched and labelled, the parts align without cutting or welding.
Important Disclaimer
This guide is general guidance for assembling a DIY shed kit; it is not a substitute for your project documentation. Your project-specific engineering drawings and the supplied assembly instructions always take precedence over this guide. If any stage is beyond your skills or equipment, engage a qualified tradesperson for that part of the build.
Your FREE One-Hour Installation Workshop
Every shed kit we supply includes a complimentary one-hour installation workshop — completely free of charge. It's a practical, hands-on session that walks you through your entire build before you start, so you can pick up your tools with total confidence.
At Our Bellevue Factory
Come in and see how your shed goes together in person. Our team will take you through the components and the build process at our factory and showroom.
3 Oliver Street, Bellevue WA 6056
Or By Video Call
Can't make it in? We'll run the same one-hour workshop with you over a video call — from your home or directly from your build site, anywhere in WA.
Live, one-on-one guidance from our team
Full Written Instructions As Well As The Workshop
The workshop is in addition to, never instead of, your documentation. Every single shed kit also arrives with detailed step-by-step written installation instructions and the engineering drawings for your project. You'll have both the guidance up front and the paperwork to refer back to at every stage of the build.
What Your Workshop Covers
Ready to build your own shed? Book your free one-hour workshop and our Bellevue team will make sure you're set up for success.
Shed kit customers receive a free one-hour installation workshop at our Bellevue factory or via video call, plus full written installation instructions with every kit.
Before You Start
A little preparation makes the build go smoothly. Tick these off first.
Tools You'll Need
Most of these are standard tools many DIYers already own.
Measuring & Marking
- Tape measure
- String line
- Spirit level
- Chalk line
- Square
Power Tools
- Cordless drill / impact driver
- Tek screw driver bits
- Angle grinder
- Extension leads
Hand Tools
- Sockets & spanners
- Rivet gun
- Ladders / trestles
- Clamps
Safety Gear
- Gloves
- Safety glasses
- Hearing protection
- Sturdy footwear
How To Build A Shed: The 8 Stages
Follow these stages in order — always referring to your engineering drawings.
Plan, Approve & Prepare The Site
Secure your building permit, then clear and level the site. Set out the building footprint with string lines and check it is square by measuring the diagonals. Good preparation is the single biggest factor in an easy build.
Pour The Slab Or Set Footings
Most sheds sit on a reinforced concrete slab or footings designed to suit your soil and engineering. Cast in the hold-down bolts to the exact positions on your plan and allow the concrete to cure before building.
Assemble The Portal Frames
Bolt together the columns and rafters to form each portal frame on the ground. Working at ground level is faster and safer than working at height, so complete as much assembly as possible before standing anything up.
Stand & Brace The Frames
Lift the first portal frame into position over the hold-down bolts, plumb it and brace it securely. Repeat for each frame, keeping everything plumb and square. Temporary bracing is critical until the structure is fully tied together.
Fix Purlins, Girts & Bracing
Install the Z purlins to the roof and the girts to the walls, then fit the permanent roof and wall bracing. This locks the frame together and gives the shed its strength against wind loads.
Sheet The Roof
Lay and fix the Colorbond® roof sheeting with the correct screws and screw pattern, working to the laps shown on your plan. Fit the ridge capping and flashings to keep the building weathertight.
Clad The Walls
Fix the Colorbond® wall sheeting to the girts, then install corner flashings and trims. Leave the openings clear for your doors and windows.
Install Doors, Windows & Finish
Fit roller doors, sliding doors, personal access doors and any windows. Complete the flashings, tidy up the site and your shed is ready to use.
Build Safely
Steel building work has real risks. Keep these in mind throughout your build.
Why Build From A DIY Kit?
Free Installation Workshop
See how your shed goes together and ask questions before you start building.
Pre-Cut & Pre-Punched
Components arrive ready to assemble, reducing cutting, drilling and guesswork on site.
Real Support
Our Bellevue team is on hand to help throughout your build.
Engineered for your site conditions
Site-specific engineering supplied where required
Engineering prepared for the applicable wind region and site
Designed to meet applicable WA requirements
Free installation workshop (factory or video call) plus written instructions support DIY assembly.
READY TO PLAN YOUR BUILD?
Price your shed instantly with the shed calculator, or talk to our team about your project.
SHED BUILD FAQS
Can I do the installation workshop online?
Yes. You can attend the one-hour workshop in person at our Bellevue factory (3 Oliver Street, Bellevue WA 6056), or we'll run the same session with you over a video call — from home or directly from your build site anywhere in WA.
Is the installation workshop really free?
Yes — every shed kit we supply includes a complimentary one-hour installation workshop at no extra cost. It's a practical, hands-on session that walks you through the whole build before you start, so you can begin with confidence.
Can I get a builder to install the shed for me?
Yes, even though it is a DIY kit you can engage your own builder or trades to assemble it if you prefer not to do it yourself. Many WA owners do the simpler work and bring in help for the slab or roof. The engineered kit is designed to go together the same way regardless of who builds it.
Can I get help if I get stuck during the build?
Yes, we offer a free installation workshop and ongoing technical support so you are never building blind. The workshop walks through the key stages of a typical assembly, and our team can answer questions about your specific kit by phone or email. This backup is a major reason WA owner builders feel confident taking on a DIY shed.
Do I need building experience to assemble a shed kit?
You do not need to be a builder, but basic construction confidence, the right tools and a willing helper make the job far easier. The kit arrives pre-punched and labelled so the parts align without cutting or welding, and the build guide walks you through each stage. Many WA owner builders bring in a concreter for the slab and tackle the frame and cladding themselves.
How do I assemble my shed kit?
You assemble the shed by following the supplied build guide, which sequences the slab fixing, frame, bracing, roof and wall cladding, then doors and trims. Because the kit is pre-punched and labelled, the parts align without cutting or welding. Working methodically with helpers and the right tools makes the build straightforward.
How long does it take to build a DIY shed kit?
Build time depends on the shed size, complexity and how many people are helping, ranging from a weekend for a small garden shed to a couple of weeks for a large farm or machinery shed. Slab curing, weather and your own pace all play a part. Planning the sequence in advance and having tools and helpers ready keeps the build moving smoothly.
How many people do I need to build a shed?
Most sheds are easier and safer to build with at least two people, and larger sheds benefit from more hands for lifting and roofing. Some stages, particularly handling long sections and fixing the roof, are difficult to do alone. Planning your helpers around the heavier stages keeps the build safe and on schedule.
Is a slab required before the shed arrives?
Most steel sheds are designed to bolt down to a concrete slab, so the slab usually needs to be poured and cured before the frame goes up. The slab size and footing details come from the shed engineering, which accounts for your wind region and soil. Some farm and machinery sheds can use engineered footings instead of a full slab, depending on the design.
Is building a shed safe to do myself?
A shed build can be done safely with the right preparation, including working at heights precautions, safe lifting, and following the build guide. Roofing and handling long steel sections are the higher-risk tasks, so plan these carefully and use appropriate equipment. If any stage feels beyond you, bring in a trade for that part.
What is the typical build sequence for a steel shed?
A typical sequence is preparing and curing the slab, setting out and erecting the frame, adding bracing, fixing the roof, then the wall cladding, and finally the doors, gutters and trims. Following this order keeps the structure stable and square as you go. Your build guide gives the detailed steps for your specific shed.
What should I prepare before my shed kit is delivered?
Before delivery, have your slab poured and cured if required, ensure clear and safe access for the delivery vehicle, and arrange somewhere to safely store the components. Plan for unloading, as some sections are long and heavy. Having tools and helpers ready means you can start the build without delay.
What support is available after I receive my kit?
After delivery you can access our technical support and installation workshop guidance to help you through the build. Our team can answer questions about your specific kit and point you in the right direction if you hit a snag. This ongoing backup is part of what makes a DIY shed manageable.
What tools do I need to build a shed kit?
Most shed kits can be assembled with common power and hand tools such as a cordless drill or impact driver, sockets and spanners, a string line, a level and a ladder or scaffold for the roof. Larger sheds may benefit from a telehandler or scaffold to lift heavier sections safely. The build guide lists the recommended tools for your specific kit.
READY TO BUILD YOUR SHED?
Plan your build with confidence — price your shed instantly, book the free workshop or speak with our WA team.
