Project Checklist (PDF)

Stay on track at every stage of your concrete job — from specification and ordering to site prep, delivery, placing, curing, testing and final handover. Built for UK concrete projects in 2026.

Concrete Project Checklist UK 2026 — How to Use This Guide

A successful concrete job is rarely about the pour alone. Most failures begin earlier: the wrong grade is ordered, the sub-base is not compacted, the reinforcement is in the wrong position, access is not checked, or curing is forgotten once the surface looks finished. Thisfree concrete project checklistis designed to keep every stage visible so homeowners, builders, site supervisors and DIY planners can avoid missed steps.

For UK projects in 2026, concrete specification is commonly guided byBS EN 206and the UK complementary standardBS 8500. These standards help define strength class, consistence, exposure class, chloride class, aggregate size, cement type, durability limits and production conformity. You do not need to be a standards expert for a small garden base, but you do need to communicate the project use clearly to the supplier. A shed base, garage slab, structural foundation and exposed driveway may all need different performance.

The easiest way to use this page is to work down the checklist in order. Start with scope and specification, then check excavation, formwork, reinforcement, ordering, pour-day safety, concrete delivery, placing, finishing, curing and handover. For a very small DIY job, some items may not apply. For structural or warranty-controlled work, extra inspection points may be required by the engineer, Building Control, NHBC warranty standards or the client specification.

2026 Standards Note

BS 8500-1:2023 and BS 8500-2:2023 remain important UK references for specifying concrete alongside BS EN 206. For structural work, always follow the project specification rather than choosing a concrete grade from a generic online table.

Plan Before You Order

Measure length, width and depth carefully. Add waste allowance and check whether levels, falls or thickened edges increase the volume.

Control the Delivery

Confirm grade, consistence, volume, arrival time and discharge route. Most pour-day stress comes from unclear access or late labour.

Cure Properly

Concrete hardens by hydration. Fast drying, frost or early loading can reduce strength and durability even if the surface looks complete.

Pre-Pour Concrete Checklist: What to Confirm Before the Truck Arrives

Thepre-pour checklistis the most important part of the concrete project. Once the lorry is on site, changes become expensive and time-sensitive. A concrete truck, pump operator and labour team cannot wait while a missing membrane is found, forms are adjusted or reinforcement is corrected. Complete these checks at least the day before the pour wherever possible.

1. Confirm the specification.Record grade, volume, consistence/workability, aggregate size, exposure class and any admixtures. Structural concrete should match engineer drawings and supplier tickets.
2. Check dimensions and levels.Measure the final pour area after excavation and formwork, not from early sketches. Verify slab thickness, falls and finished height against doors, drains and thresholds.
3. Inspect the base.Soft spots, wet clay, uncompacted hardcore and loose fill can create settlement cracks. Compact sub-base in layers and correct low areas before membranes are installed.
4. Review reinforcement.Mesh or rebar must be supported on chairs/spacers to achieve cover. Reinforcement dragged up by hand during the pour rarely stays in the correct position.
5. Prepare the access route.Confirm lorry size, road restrictions, overhead cables, hose route, wheelbarrow route, pump location and washout controls.
6. Check people and resources.Arrange enough labour, tamp, screed rails, floats, trowels, vibrating poker where needed, covers, curing method and lighting.

Do Not Rely on Adding Water

Adding water on site can reduce strength, increase shrinkage and create disputes if the concrete later fails. Order the correct workability/consistence class or speak to the supplier before discharge if the mix looks wrong.

Common Pre-Pour Mistakes

• Under-ordering concrete:A shortage creates cold joints and delays, especially if the next truck cannot arrive quickly.
• Weak formwork:Fresh concrete is heavy and can blow out poorly braced shuttering.
• No drainage plan:External slabs should fall away from buildings and avoid trapping water at thresholds.
• Missing isolation joints:Concrete should not lock hard against pipes, walls, columns or existing structures without movement detailing.
• No curing plan:Curing materials must be on site before the pour, not ordered after finishing.

Concrete Pour Day Checklist: Delivery, Placing and Finishing

Pour day is about sequencing. The supplier delivers fresh concrete with a limited working window, the team must place it safely, and the finish must be completed before the concrete loses workability. The more complicated the project, the more important it is to assign roles before the truck arrives.

On arrival, check the delivery ticket. It should match your order: supplier, time, volume, grade, consistence, maximum aggregate size and any special requirements. If the ticket does not match, stop and speak to the supplier before placing concrete. For larger or structural pours, the project may require slump testing, cube samples or other QA records. Site testing should be carried out by competent persons using the correct methods.

• Pour-Day Check: Delivery Ticket; What to Confirm: Grade, volume, time, supplier, consistence; Why It Matters: Confirms you received the specified concrete; Record Needed?: Yes
• Pour-Day Check: Workability; What to Confirm: Slump/flow class if specified; Why It Matters: Controls placement without adding water; Record Needed?: Often for QA
• Pour-Day Check: Placement Route; What to Confirm: Chute, pump, hose or barrow route; Why It Matters: Reduces delay and segregation risk; Record Needed?: No
• Pour-Day Check: Compaction; What to Confirm: Tamping, vibration or poker method; Why It Matters: Removes voids and improves bond around reinforcement; Record Needed?: Project dependent
• Pour-Day Check: Finish; What to Confirm: Float, brush, power-float, tamped or trowelled; Why It Matters: Affects slip resistance and surface durability; Record Needed?: Yes for client spec
• Pour-Day Check: Curing Start; What to Confirm: Protection begins as soon as practical; Why It Matters: Prevents drying shrinkage and surface dusting; Record Needed?: Recommended

Labour Ready

For more than a small pour, have enough people to spread, compact, level and finish without rushing. Concrete waits for no one.

Testing Ready

If slump or cubes are required, arrange equipment and competent testing before the lorry arrives. Do not improvise after discharge begins.

Weather Ready

Rain, frost, sun and wind all affect fresh concrete. Keep polythene, insulation or shading available depending on conditions.

Concrete Curing & Aftercare Checklist

Concrete does not gain full performance the moment it is hard enough to walk on. Strength development and durability rely on continued hydration and protection. Poor curing can cause plastic shrinkage cracks, weak dusty surfaces, curling, reduced abrasion resistance and long-term durability problems. This is why curing should be treated as part of the concrete work, not an optional extra.

For domestic slabs, simple methods such as polythene sheeting, damp hessian, curing compound or keeping the slab protected from direct drying can make a major difference. In cold weather, the aim is to prevent freezing while early strength develops. In hot or windy weather, the aim is to stop rapid moisture loss. For structural work, follow the specification and any engineer instructions on curing duration, temperature limits and loading restrictions.

Good Curing Rule

Plan curing before the pour starts. Covers, curing compound, edge protection and traffic barriers should be ready on site before the first concrete is discharged.

Aftercare Timeline

• Period: Immediately after finishing; Key Action: Cover or apply curing method; What to Avoid: Rapid drying, heavy rain, frost; Notes: Do not mark fresh surface
• Period: First 24 hours; Key Action: Keep protected and restrict access; What to Avoid: Foot traffic, resources, pets, vibration; Notes: Edges are vulnerable
• Period: 2–7 days; Key Action: Continue curing where specified; What to Avoid: Premature loading and drying; Notes: Good for strength and durability
• Period: After 7 days; Key Action: Light use may be possible depending on job; What to Avoid: Heavy vehicles or concentrated loads; Notes: Follow specification
• Period: 28 days; Key Action: Common reference age for strength; What to Avoid: Assuming it is ready for every load; Notes: Structural loading needs engineer sign-off

Concrete Standards, Safety and QA Notes for 2026

Concrete work sits between design, materials, workmanship and curing. A checklist helps coordinate these, but it does not replace a professional specification. In the UK, concrete is commonly specified using the BS EN 206 framework with the BS 8500 complementary British Standard. These references are especially important for structural concrete, reinforced concrete, aggressive ground conditions, freeze-thaw exposure, de-icing salts and long design life requirements. For deeper technical reading, see theConcrete Centre standards overview, theHSE cement safety guidance, and theBRMCA ready-mixed concrete practical guide.

For housing and warranty-controlled projects, NHBC standards may also apply. For safety, the Health and Safety Executive warns that cement-based products such as concrete and mortar can cause serious skin problems including dermatitis and burns. Site teams should plan PPE, washing facilities and safe handling in advance. Wet concrete should not be allowed to remain trapped inside boots or gloves.

Quality assurance does not need to be complicated. At minimum, keep a record of concrete supplier, batch/delivery ticket, volume, grade, delivery time, weather, site contact, location poured, curing method and photos. For specified works, include slump or flow tests, cube samples, temperature records, inspection sign-offs and any non-conformance notes. If there is a later question about cracking, strength, drainage or surface finish, these records make the project easier to defend and repair.

BS EN 206 + BS 8500

Use for concrete specification, conformity, durability and UK-specific guidance. Engineer-led projects should not rely on generic mix labels alone.

HSE Safety

Wet concrete can burn skin. PPE, washing arrangements, eye protection and clear safe access should be ready before pour day.

QA Records

Delivery tickets, photos, test results and curing logs create a simple audit trail from order to handover.

Stage-by-Stage Concrete Project Guide

This section expands the checklist into a practical site sequence. It is written for UK homeowners, small builders, landscapers and site supervisors who want a simple method to control concrete work without missing hidden details. The stages may look obvious when listed on paper, but on site they often overlap. For example, a change to access can affect delivery method, delivery method can affect labour, labour can affect finishing time, and finishing time can affect curing. Treat the checklist as a chain: one weak link can affect the finished concrete.

Stage 1 is specification.Decide what the concrete must do. Is it only a non-structural blinding layer, a garden shed base, a garage slab, a driveway, a reinforced foundation, a retaining wall base or an internal slab that will receive a floor finish? The answer changes the concrete grade, thickness, reinforcement, exposure requirements and surface finish. When the work is load-bearing, do not copy a grade from another project. Use the engineer’s detail, approved drawing or supplier guidance.

Stage 2 is measurement.Concrete is ordered by volume, but real excavations are rarely perfect rectangles. Soil can overbreak, formwork can move, levels can change and thickened edges can add more volume than expected. For small projects, under-ordering is a common and expensive mistake because the second delivery may arrive after the first concrete has already started to stiffen. Measure the formed area just before ordering and add a sensible waste allowance.

Stage 3 is the base.Concrete performs best on a stable, clean and properly prepared base. Soft ground, organic material, waterlogged areas or loose fill can lead to settlement, cracking and uneven slabs. External slabs and driveways often need a compacted sub-base. Internal slabs may require a damp-proof membrane, insulation and edge detailing. Foundations may need inspection before concrete is placed. Never hide poor preparation with extra concrete; it usually creates a more expensive problem later.

Stage 4 is reinforcement and joints.Reinforcement only works when it is positioned correctly. Mesh left on the ground under a slab provides little benefit. Bars without proper cover can corrode, while missing movement joints can create random cracking. For domestic slabs, planned joints help manage shrinkage. For structural concrete, joint positions and reinforcement details must follow the drawing. Photograph the reinforcement and formwork before the pour because those details become impossible to check afterwards.

Stage 5 is delivery control.Ready-mix concrete is time sensitive. Confirm the truck can reach the site, the chute can reach the pour, or the pump is booked. Agree who checks the delivery ticket and who tells the driver when to discharge. Make sure the team knows where the concrete starts and how the pour progresses. A good pour is controlled, not improvised.

Stage 6 is finishing and curing.Finishing should match the use of the concrete. A driveway needs a suitable textured surface for grip, while an internal floor may need a smoother finish or later screed. Curing begins after finishing and continues while concrete gains strength. Protecting concrete from rapid drying, frost, rain and early loading is one of the simplest ways to improve durability.

Best Practice Summary

Specify correctly, measure after formwork, prepare the base, support reinforcement, control delivery, place quickly, compact properly, finish for the intended use, cure immediately and keep records.

Concrete Grade and Use Checklist

The concrete grade is only one part of a complete specification, but it is the detail most people recognise first. UK concrete strength classes are often shown as C20/25, C25/30 or C30/37. The first number relates to cylinder strength and the second to cube strength. Many suppliers and builders also use traditional labels such as GEN, RC and PAV mixes. The right choice depends on structural role, exposure, reinforcement, ground conditions and finish requirements.

The table below is a practical guide only. It helps you understand common applications before speaking to a supplier or engineer. It should not override project drawings, Building Control requirements, warranty guidance or site-specific exposure requirements.

• Typical Grade: C8/10 to C12/15; Common Use: Blinding, bedding and light non-structural work; Checklist Focus: Correct thickness and clean base; Extra Note: Not suitable for heavy structural loading
• Typical Grade: C20/25; Common Use: Domestic slabs, shed bases, paths and light bases; Checklist Focus: Compacted base, falls, curing and joints; Extra Note: Popular for simple domestic work
• Typical Grade: C25/30; Common Use: Driveways, garage floors and heavier domestic slabs; Checklist Focus: Sub-base, finish, curing, reinforcement and traffic loading; Extra Note: Exposure and de-icing salts may change requirements
• Typical Grade: C30/37; Common Use: Reinforced slabs, footings and structural elements; Checklist Focus: Drawing compliance, cover, testing and inspection; Extra Note: Use engineer/project specification
• Typical Grade: C35/45 to C40/50; Common Use: Higher strength or durability-critical concrete; Checklist Focus: Full QA, exposure class and supplier conformity; Extra Note: Do not choose without specification

Concrete Quote and Supplier Checklist

Getting a concrete quote is not only about the price per cubic metre. A cheap quote can become expensive if it excludes waiting time, part-load charges, pump hire, fibres, admixtures, delivery distance, weekend delivery or disposal/washout arrangements. Before you accept a quote, make sure it includes all the project details below.

Before You Call

Prepare postcode, project type, volume, grade, delivery date, access information, discharge method and whether you need pump hire.

During the Quote

Ask about minimum load, part-load fees, waiting time, cancellation policy, admixtures, fibres, delivery window and VAT.

Before Acceptance

Confirm the written order matches your grade, volume, consistence, address, time, site contact and payment terms.

Questions to Ask a Ready-Mix Supplier

• What concrete grade or designated mix do you recommend for this application?
• What workability or slump class is suitable for chute, barrow or pump placement?
• Is the mix suitable for external exposure, frost, de-icing salts or aggressive ground?
• What is the maximum aggregate size and will it suit the slab thickness and reinforcement spacing?
• How long is the delivery window and what waiting charges apply if the site is not ready?
• Can the truck safely access the site, or should a pump be booked?
• What happens if the site needs a small top-up load?
• Will the delivery ticket show grade, volume, batching time and supplier details?

Cheap Concrete Warning

Price matters, but the wrong grade, poor workability, delayed delivery or weak curing can cost far more than the saving. For structural or durability-critical work, choose compliance and reliability first.

Concrete Project Mistakes This Checklist Helps Prevent

Most small concrete problems are predictable. The same issues appear again and again: concrete ordered too wet, slabs poured on soft ground, mesh placed at the bottom, edges left unsupported, joints forgotten, curing skipped and records lost. The purpose of this checklist is to make those risks visible before they turn into defects.

• Ordering by area instead of volume:Always work out cubic metres using actual depth. A 20 m² slab at 100 mm is 2.0 m³ before waste, but the same slab at 150 mm is 3.0 m³.
• Ignoring access:A ready-mix truck chute has limited reach. If access is poor, plan wheelbarrows, a dumper or a concrete pump before delivery day.
• Weak edge restraint:Slab edges, formwork and driveway transitions often fail first when they are thin, poorly compacted or unsupported.
• Pouring in bad weather without protection:Rain can damage the surface, frost can stop early strength gain, and hot windy weather can dry concrete too quickly.
• Finishing too early or too late:Overworking bleed water into the surface can weaken it; waiting too long makes finishing difficult and inconsistent.
• Loading too early:Concrete may look hard but still be developing strength. Early vehicles, block stacks or plant can cause cracking and permanent damage.

A checklist does not guarantee perfect concrete, but it creates discipline. It tells you what must be decided before ordering, what must be inspected before pouring, what must be controlled during placing and what must be protected after finishing. That discipline is what keeps a project on track from the first measurement to the final handover.

Related Concrete Guides & Guides

Use these supporting resources to plan quantities, grade selection, ordering and quality checks.

Concrete Project Checklist — Frequently Asked Questions

Common questions about planning, ordering, pouring, curing and recording concrete work in the UK.

Before a concrete pour, check the specification, grade, quantity, formwork, reinforcement, cover, sub-base, levels, falls, access route, delivery time, weather protection, labour, resources, PPE and curing method. For structural work, also check inspection sign-off, slump/cube testing requirements and whether the engineer or Building Control needs notice before concrete is placed.

For a simple rectangular slab, multiply length × width × depth in metres to get cubic metres. Then add waste allowance, commonly 5–10% for domestic work. For footings, beams, pads or irregular excavations, break the project into sections and measure each separately. Always order from actual site dimensions after excavation and formwork, not only from early drawings.

Domestic slabs often use grades around C20/25 or C25/30 depending on loading, exposure and specification. A shed base, garage floor, driveway and structural reinforced slab can all need different concrete. Use engineer drawings, supplier advice and BS 8500/BS EN 206 specification principles rather than choosing by price alone.

Not every small domestic job requires formal slump testing, but specified or structural projects may require workability checks. The delivery should match the consistence/workability class ordered. If the project specification requires testing, it should be carried out by a competent person using the correct equipment and recorded with the delivery ticket.

Light foot traffic may be possible after the concrete has hardened enough not to mark, but this depends on mix, weather and curing. Vehicles and heavy loads need much longer. Many projects use 28 days as a reference age for concrete strength, but loading decisions should follow the specification, supplier advice or engineer instructions.

Curing protects concrete while hydration continues. Without curing, the surface can dry too fast, creating shrinkage cracks, dusting, reduced abrasion resistance and lower durability. Curing is especially important in hot, dry, windy or freezing weather. Plan curing materials before the pour starts.

No. This checklist is a planning and quality-control aid. It does not replace structural design, engineer details, Building Control requirements, warranty standards, supplier specifications or site-specific risk assessments. For load-bearing work, always follow professional project documents.